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BYU - CHEM 110
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  • 329 Pages Unit 1 Intro to Chem
    Unit 1 Intro To Chem

    School: BYU

    Introduction to Chemistry Mr. Christopherson Normal Community High School www.unit5.org/chemistry Whetheryoubelieveyoucandoathing Problemscallforthourcourageandourwisdom; orbelieveyoucant, indeed,theycreateourcourageandourwisdom. youareright. itisonlybeca

  • 11 Pages molar-solutions-liquids
    Molar-solutions-liquids

    School: BYU

    Making Molar Solutions From Liquids (More accurately, from stock solutions) Making molar solutions from liquids Making Not all compounds are in a solid form Acids are purchased as liquids (stock solutions). Yet, we still need a way to make molar solutions

  • 9 Pages intermolecular-forces
    Intermolecular-forces

    School: BYU

    Intermolecular forces and solubility and Why mixtures mix Why Consider a glass of wine. Why do alcohol, water, & pigment mix together? There must be attractive forces. Intramolecular forces Intermolecular forces occur between atoms occur between molecul

  • 2 Pages innovation-light-speed-answers
    Innovation-light-speed-answers

    School: BYU

    1. With fire beacons 10. 2. Weather (visibility poor, rain/cloud/mist) 11. 3. War was over 12. 4. 1858 13. 5. Sending signals as notes, combining 14. messages on wire 6. Patented telephone 15. 7. Water 16. 8. Turn signal on & off 17. (wink on & off) 18. 9

  • 12 Pages ideal-gas-law
    Ideal-gas-law

    School: BYU

    T heIdealGas Law PV=nRT Ideal Gases Ideal An ideal gas exhibits certain theoretical properties. Specifically, an ideal gas Obeys all of the gas laws under all conditions. Does not condense into a liquid when cooled. Shows perfectly straight lines when its

  • 20 Pages hydrocarbon-nomenclature
    Hydrocarbon-nomenclature

    School: BYU

    Naming Hydrocarbons (nomenclature) Drawing Structures: Its All Good H C 2-butene H H H C C C C H H H H3C H H H3C CH CH CH3 This is called the condensed structure CH H3C H3C C H CH CH3 CH3 CH3 On a test, choose a method that shows all CH3CH=CHCH3 Hs Using

  • 9 Pages hydrocarbon-naming-answers
    Hydrocarbon-naming-answers

    School: BYU

    H3C CH3 CH3 H3C 1 CH3 CH2 CH2 CH2 CH2 CH2 CH2 2 CH3 CH2 CH2 CH CH2 CH2 CH3 H2C CH3 3 octane 4 CH CH3 CH3 2,5-dimethyloctane CH3 CH3 CH2 CH CH C CH H2C CH3 2,2-dimethyl-3-hexene CH3 CH3 CH2 CH2 CH CH2 CH3 1,3-diethylcyclopentane 5 CH2 CH3 CH CH2 CH2 CH CH2

  • 4 Pages hydrocarbon-models-answers
    Hydrocarbon-models-answers

    School: BYU

    Hydrocarbons Hydrocarbons 2. Carbon and Hydrogen. 4. Figure 5 does not accurately reflect molecular shape and atomic size (e.g. atomic size relative to bond length). 5. a) HHHHHH H c) C C C C C H b) C H H H H H H CH3 CH2 CH2 CH2 CH2 CH3 6. Carbon: 6, Hydr

  • 11 Pages hybrid-orbitals
    Hybrid-orbitals

    School: BYU

    Hybrid orbitals, Lewis diagrams, the octet rule Gilbert Newton Lewis (surrounde dbypairs ofelectrons) We can visualize a covalent bond as a balance between attraction and repulsion A second way to view the formation of a bond is to consider orbital diagr

  • 13 Pages u11lectout
    U11lectout

    School: BYU

    Unit 11: Equilibrium / Acids and Bases reversible reaction: R P and Name: _ PR Acid dissociation is a reversible reaction. 2 H1+ + SO41 H2SO4 equilibrium: - looks like nothing is happening, however - Le Chateliers principle: When a system at equilibrium i

  • 8 Pages hess-law
    Hess-law

    School: BYU

    Hesss Law states that the heat of a whole reaction is equivalent to the sum of its steps. Hesss law Steps in drawing enthalpy diagrams 1. Balance the equation(s). 2. Sketch a rough draft based on H values. 3. Draw the overall chemical reaction as an enth

  • 13 Pages intermolecular-forces (1)
    Intermolecular-forces (1)

    School: BYU

    Questions Why do some solids dissolve in water but others do not? Why are some substances gases at room temperature, but others are liquid or solid? What gives metals the ability to conduct electricity, what makes non-metals brittle? The answers have to

  • 6 Pages isomers-answers
    Isomers-answers

    School: BYU

    Isomers Structural Isomers 1. a) CH3 CH2 CH2 CH3 CH3 CH3 CH CH3 2-methylpropane (C4H10) CH3 CH CH CH3 CH2 CH2 CH CH3 Butane (C4H10) 1. CH2 CH CH2 CH3 1-butene 2-butene CH3 CH2 C CH3 CH2 CH2 CH2 CH2 2-methylpropene cyclobutane methylcyclopropane 1. a) C4H8

  • 219 Pages A4 Periodic Table
    A4 Periodic Table

    School: BYU

    Periodic Table Kelter, Carr, Scott, Chemistry A Wolrd of Choices 1999, page 74 Buy this as a periodic table poster! Guiding Questions Why is the periodic table so important? Why is the periodic table shaped the way it's shaped? Why do elements combine? Wh

  • 8 Pages lewis-structures
    Lewis-structures

    School: BYU

    2peripheralLewisbondedtoacentralLewis Because there are exceptions to the octet rule, we need a set of rules to determine how many electrons surround atoms The first step is to determine how the atoms are bonded in a molecule Generally, if there is only

  • 408 Pages A3 Atomic Structure
    A3 Atomic Structure

    School: BYU

    Atomic Structure Unit 3 http:/www.unit5.org/chemi stry Guiding Questions How do we know atoms exist? How do we know that electrons, protons, and neutrons exist? What is radiation and what does it come from? Is radiation safe? Where does matter come from?

  • 9 Pages Le-Chatelier-principle
    Le-Chatelier-principle

    School: BYU

    Le Chteliers principle The significance of Kc values Read 14.6 (560 - 561) do PE5 If Kc is small (0.001 or lower), [products] must be small, thus forward reaction is weak If Kc is large (1000 or more), [products] must be large, thus forward reaction is s

  • 12 Pages Kw-pH
    Kw-pH

    School: BYU

    Todays lesson is brought to you by 7, 14, and the letters 7, Kw, pH Kw, Kw: the ion-product constant of water Kw: Q: will pure distilled water conduct electricity A: As the demo shows, it will (slightly). If water conducts electricity, ions must exist Wat

  • 10 Pages Ksp-solubility-product
    Ksp-solubility-product

    School: BYU

    Unit 6: Equilibrium applications Ksp Ksp: review (grade 11) 1) What is the molar mass of H2O? 2) How many moles are in 18 g of NaCl? 3) How many g of CaCl2 are found in 2 L of a 3 M solution of CaCl2? (see pg. 130 if you need help) 4) What is the concentr

  • 12 Pages kmt
    Kmt

    School: BYU

    States of Matter, Kinetic Molecular Theory Read 9.1 (pages 418 420) 1. Are there larger attractive forces between molecules of gases, liquids, or solids? Explain. 2. Which state(s) of matter have these properties: a) definite shape, b) definite volume, c)

  • 17 Pages Ka-acid-ionization
    Ka-acid-ionization

    School: BYU

    Ka, Kb Ka, 1. 2. 3. 4. Comparing the pH of two acids Comparing Predict the pH of HCl and HF (below) Calibrate a pH meter Measure the pH of HCl(aq) and HF(aq) Complete the chart below HCl (aq) HF (aq) [ ] in mol/L (on label) 0.05 0.05 Net ionic equation HC

  • 6 Pages isomers-polymers-answers
    Isomers-polymers-answers

    School: BYU

    Isomers and polymers Structural Isomers 1. Pentane and 2-methylbutane are both C5H12. CH2 CH CH2 CH3 CH3 CH CH CH3 2. 1-butene 2-butene CH3 CH2 C CH3 2-methylpropene CH2 CH2 CH2 CH2 cyclobutane CH2 CH2 CH CH3 methylcyclopropane 3. C4H10 has 2 isomers (2-m

  • 10 Pages u10lectout
    U10lectout

    School: BYU

    Unit 10: Solutions Name: _ Solution Definitions solution: a homogeneous mixture - e.g., alloy: a solid solution of metals - e.g., solvent: the substance that dissolves the solute soluble: will dissolve in miscible: refers to two liquids that mix evenly in

  • 12 Pages gas-stoichiometry
    Gas-stoichiometry

    School: BYU

    Gas Stoichiometry Stoichiometry Gas Stoichiometry Gas We have looked at stoichiometry: 1) using masses & molar masses, & 2) concentrations. We can use stoichiometry for gas reactions. As before, we need to consider mole ratios when examining reactions

  • 10 Pages u3lectout
    U3lectout

    School: BYU

    Unit 3: Atomic Structure Name: _ Basics of the Atom Particle Charge Location in the Atom Mass a.m.u.: unit used to measure mass of atoms atomic number: -mass number: To find net charge on an atom, consider _ and _. ion: anion: a () ion cation: a (+) ion -

  • 16 Pages electronegativity-elements
    Electronegativity-elements

    School: BYU

    Electronegativity Electronegativity + H Cl 0 H H 0 The basic units: ionic vs. covalent The Ionic compounds form repeating units. Covalent compounds form distinct molecules. Consider adding to NaCl(s) vs. H2O(s): Na Cl Na Cl Cl Na Cl Na O H H HO O H H H

  • 8 Pages electronegativity
    Electronegativity

    School: BYU

    Electronegativity Electronegativity + H 0 0 Cl H H Electronegativity Electronegativity Electronegativity describes how electrons are shared in a compound Consider the compound HCl + H Cl The electron clouds represent where the two electrons in the HCl

  • 11 Pages u2lectout
    U2lectout

    School: BYU

    Unit 2: Matter and Energy Name: _ Matter Introductory Definitions matter: anything having mass and volume mass: weight: volume: units: L, dm3, mL, cm3 L3 state of matter: composition: copper: water: properties: -atom: a basic building block of matter Elem

  • 13 Pages dalton-partial-pressure
    Dalton-partial-pressure

    School: BYU

    How Much Pressure? Q - A balloon is filled with pure oxygen. What is the pressure of the oxygen in the balloon? A - Atmospheric pressure. If it wasnt, then the balloon would expand or shrink. Q - A windbag is blown up with exhaled air. What is the pressur

  • 1 Page cyclone-answers
    Cyclone-answers

    School: BYU

    Cyclone! /20 cyclones 11. Water spouts million 12. 74 mph thunderstorms 13. The eye 300 ft 1 of: garage doors, 14. Drowning (storm surge) window frames, 15. Florida parts of houses 16. Chicago 6. cyclones 17. mini-swirls 7. small twisters (around large o

  • 9 Pages u1lectout
    U1lectout

    School: BYU

    Unit 1: Introduction to Chemistry Name: _ Internet web site: www.unit5.org/christjs/ Safety #1 Rule: Others: No horseplay. No unauthorized experiments. Handle chemicals/glassware with respect. Safety Features of the Lab Material Safety Data Sheet (MSDS) -

  • 10 Pages crystal-properties
    Crystal-properties

    School: BYU

    Ionic, H-bonding, Dipole, or London? Ionic, Details Bond Molecule IMF EN = 0 - 0.5 nonpolar nonpolar London EN = 0.5 - 1.7 polar polar dipole-dipole* EN = 1.7 - 3.2 ionic Ionic ionic* H + N,O,F polar polar H-bonding* Symmetrical -nonpolar London molecule

  • 6 Pages concentration
    Concentration

    School: BYU

    Solution Concentration Solution Read 281 283. Try questions 1 8 (show work) Concentration = quantity of solute quantity of solution (not solvent) There are 3 basic ways to express concentration: 1) percentages, 2) very low concentrations, and 3) molar con

  • 16 Pages equilibrium-calculations
    Equilibrium-calculations

    School: BYU

    Equilibrium Law Calculations (with RICE charts) Read 566 (from Calculating Kc) to 568. Follow the sample calculation carefully. Example 14.7 - pg. 567 H2 + I2 2HI HI H2 I2 R I C E 1 0.100 -0.08 0.02 1 0.100 -0.08 0.02 2 0 +0.16 0.16 Ratio, Initial, Chang

  • 7 Pages equilibrium-law
    Equilibrium-law

    School: BYU

    Equilibrium Law Introduction to the Equilibrium law Read 14.3 to PE1 Equilibrium constant 2 22 2 2 [H2O] [H2] [O ] 2 [O 2H2 2H2(g) + O2(g)2 22]H2O (g) 2 Kc = Mass action expression 2H 2H2(g) + O2(g) 2H2O (g) (g) Step 1: Set up the equilibrium law equatio

  • 4 Pages u4lectout
    U4lectout

    School: BYU

    Unit 4: The Periodic Table and Periodicity Name: _ The Elements Element names come from a variety of sources. elements known to the ancients Au, Ag, S, Sn, C place names Fr, Po, Ge, Ga, In, Eu, Am, Cf, Sc famous people Es, Fm, Md, No, Gd, Rf, Bh foreign l

  • 13 Pages u9lectout
    U9lectout

    School: BYU

    Unit 9: The Gas Laws Name: _ The Atmosphere an ocean of gases mixed together Composition nitrogen (N2). oxygen (O2). argon (Ar). carbon dioxide (CO2). water vapor (H2O) Depletion of the Ozone Layer O3 depletion is caused by chlorofluorocarbons (CFCs). Use

  • 8 Pages functional-groups
    Functional-groups

    School: BYU

    Organic Chemistry: Functional Groups Origin of organic compounds Origin Naturally occurring organic compounds are found in plants, animals, and fossil fuels All of these have a plant origin All of these rely on the fixing of C from CO2 Synthetic organic

  • 11 Pages u8lectout
    U8lectout

    School: BYU

    Unit 8: Stoichiometry Name: _ - involves finding amts. of reactants & products in a reaction What can we do with stoichiometry? For generic equation: RA + RB P1 + P2 Given the one can find the amount of RA (or RB) amount of RB (or RA) that is needed to re

  • 45 Pages filling order2
    Filling Order2

    School: BYU

    Electron Configuration Electron Filling-Order of Electrons in an Atom Electron Electron capacities Copyright 2006 Pearson Benjamin Cummings. All rights reserved. Periodic Patterns s 1 2 3 4 5 6 7 p 1s 2s 2p 3s 4s 3d 4p 5s 4d 5p 6s 5d 6p 7s f d (n-1) 6d 7p

  • 8 Pages u7lectout
    U7lectout

    School: BYU

    Unit 7: Chemical Equations Name: _ Evidence of a chemical reaction: A reaction has occurred if the chemical and physical properties of the reactants and products differ. For a reaction to occur, particles of reactants must collide, and with sufficient ene

  • 30 Pages factor-label-method
    Factor-label-method

    School: BYU

    Thefactorlabelmethod T hefactorlabelmethod A way to solve math problems in chemistry Used to convert km to miles, m to km, mol to g, g to mol, etc. To use this we need: 1) desired quantity, 2) given quantity, 3) conversion factors Conversion factors a

  • 6 Pages u6lectout
    U6lectout

    School: BYU

    Unit 6: The Mathematics of Chemical Formulas # of H2O molecules # of H atoms Name: _ # of O atoms 1 2 3 100 6.02 x 1023 molar mass: PbO2 HNO3 ammonium phosphate percentage composition: the mass % of each element in a compound Find % composition. PbO2 (NH4

  • 6 Pages u5lectout
    U5lectout

    School: BYU

    Unit 5: Bonding and Inorganic Nomenclature Name: _ Chemical Bonding Ionic Bonds: atoms give up or gain e and are attracted to each other by coulombic attraction ionic compounds = salts where NO31 is a polyatomic ion: Properties of Salts 1. very hard 2. h

  • 2 Pages escape-fire-answers
    Escape-fire-answers

    School: BYU

    1. Escalator (wood, grease) 2. One of: stainless steel escalators, cleaned mechanisms, sprinklers installed, smoke and fire alarms, smoking bans. 3. Pump (water pump) 4. a) Bakery b) 1 c) 4 days (& nights) d) 3/5ths 5. One of: (new building codes, wood wa

  • 13 Pages common-ion-effect
    Common-ion-effect

    School: BYU

    The common ion effect, predicting precipitation: Read pg. 580 582 (common ion effect section only). Do PE 20 21 By the end of the period: PE 14 19, PE 20 25 Common ion lab PbCl2(s) Pb2+(aq) + 2Cl(aq) A+B Explanation 1 Cloudy / Cl causes shift left precipi

  • 264 Pages B3 Solutions
    B3 Solutions

    School: BYU

    Solutions Table of Contents Solutions Chemical Stewardship Solutions Effect of Temperature Process of Dissolving Electrolytes Colligative Polarity of Solutions Soap Making Reverse Osmosis Bonding Hard Water Objectives To be familiar with the kinetic molec

  • 27 Pages u11ohnotes18f2005
    U11ohnotes18f2005

    School: BYU

    Unit 11: Equilibrium / Acids and Bases reversible reaction: RP and PR Acid dissociation is a reversible reaction. 2 H1+ + SO41 H2SO4 equilibrium: = - looks like nothing is happening, however - system is dynamic, NOT static Le Chateliers principle: When a

  • 8 Pages unit-4-review-answers (1)
    Unit-4-review-answers (1)

    School: BYU

    Review: Energy Changes, Rates of Reaction and Nuclear Energy Questions 1 - 3 1. a) exothermic b) endothermic c) exothermic d) exothermic e) exothermic (in the forward direction) 1. q = cm T = 4.1796 J/gC x 500 g x 0.4 C = 835.92 J = 0.83592 kJ # mol = 10

  • 8 Pages unit-4-review-answers
    Unit-4-review-answers

    School: BYU

    Answers to Unit 4 Review: Gases Answers 1. Solid: fixed shape, incompressible. Liquid: takes shape of container, incompressible. Gas: expands to fill container, compressible. 2. Vibrational (solids, liquids, gas molecules), rotational (liquid, gas), trans

  • 8 Pages unit-3-review-answers
    Unit-3-review-answers

    School: BYU

    1. HCl = 3.0 2.1 = 0.9: dipole-dipole, London. H2O = 3.5 2.1 = 1.4: hydrogen bonding (H with N, O, or F), London. NaCl = 3.0 0.9 = 2.1: ionic, London. CH4 = 2.5 2.1 = 0.4: London only. 2. a) Solubility is a balance between attractive forces and the speed

  • 4 Pages unit-2-review-answers
    Unit-2-review-answers

    School: BYU

    1) a) H = 2.06%, S = 32.69%, O = 65.25% b) Ca = 54.09%, O = 43.18%, H = 2.73% 2) 24 x .787 + 25 x .101 + 26 x .112 = 24.3 3) a) 98.08 g/mol, b) 759.70 g/mol 4) a) 0.12 mol (= 16 g CuCl2 x 1 mol/134.45 g) b) 4091 g (= 70 mol NaCl x 58.44 g/mol) 5) there ar

  • 9 Pages unit-1-review-answers
    Unit-1-review-answers

    School: BYU

    1. Probably not, its water (H2O) 2. SATP (standard ambient temperature & pressure: 25C, 100 kPa), STP (standard T&P: 0C, 101.325 kPa) Element: cannot be broken down by chemical means (all same type of atom). Compound: broken down by chemical means (two or

  • 2 Pages naming-review-answers
    Naming-review-answers

    School: BYU

    1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. PbS HClO4 HF(g,l, or s) Zn(OH)2 HBr(aq) sulfur hexafluoride nitrous acid hydrogen chloride lead(II) chloride zinc sulfate (NH4)2CO3 Cr2(SO3)3 NiSO46H2O 15. 16. 17. 18. 19. 20. 21. 22. 23. 24. 25. 26. 27. SO3 chro

  • 3 Pages Le-Chatelier-lab-answers
    Le-Chatelier-lab-answers

    School: BYU

    2+ Fe3+ + SCN FeSCN 1. KSCN = colourless, Fe(NO3)3 = colourless mixed = brown, red, rusty, etc. , FeSCN2+ provides the colour 10. 2- Darker brown , (more SCN) shift right (toward FeSCN2+) 3- Darker brown , (more Fe3+) shift right (toward FeSCN2+) 4- Light

  • 2 Pages hydrate-lab-answers
    Hydrate-lab-answers

    School: BYU

    Hydrate Lab Answers Detailed calculations shown Accurate data recorded (5 0.3) Correct calculation for water lost Q1 - Moles of water lost Q2 - moles of anhydrous salt (159.61 g/mol) Q3 - 5 Q4 - CuSO45H2O Q5 - copper(II) sulfate pentahydrate Q6 - Turned b

  • 3 Pages hess-lab-answers
    Hess-lab-answers

    School: BYU

    Heats of reaction 0.1 0.1 0.1 0 0.1 0.1 T= T= 11.6 T= 6.0 5.2 9698 J 5016 J 4347 NaOH(s) NaOH(aq) J H= -43.5 Mol NaOH Mol HCl H = cm T =(4.18)(200)( T) kJ NaOH(s) + HCl(aq) NaCl(aq) + H2O 1. NaOH dissolves (goes from solid H= -97.0 to aqueous) kJNaOH diss

  • 8 Pages unit-5-review-answers
    Unit-5-review-answers

    School: BYU

    Answers to Unit 5 Review: Hydrocarbons Answers Acetylene: the common name for ethyne (C2H2). Acyclic: an organic molecule that does not contain a cyclic structure. Addition Reaction: A reaction in which a multiple bond is broken and new atoms are added to

  • 6 Pages u4ohnotes18f2005
    U4ohnotes18f2005

    School: BYU

    Unit 4: The Periodic Table and Periodicity The Elements Element names come from a variety of sources. elements known to the ancients Au, Ag, S, Sn, C place names Fr, Po, Ge, Ga, In, Eu, Am, Cf, Sc famous people Es, Fm, Md, No, Gd, Rf, Bh foreign languages

  • 13 Pages u5ohnotes18f2005
    U5ohnotes18f2005

    School: BYU

    Unit 5: Bonding and Inorganic Nomenclature Chemical Bonding Ionic Bonds: atoms give up or gain e and are attracted to each other by coulombic attraction Na loses an e Cl gains an e Na Na1+ + e Cl + e Cl1 ionic compounds = salts Na1+ + Cl1 NaCl K1+ + NO31

  • 18 Pages u10ohnotes18f2005
    U10ohnotes18f2005

    School: BYU

    Unit 10: Solutions Solution Definitions solution: a homogeneous mixture - evenly mixed at the particle level - e.g., salt water alloy: a solid solution of metals - e.g., bronze = Cu + Sn; brass = Cu + Zn solvent: the substance that dissolves the solute wa

  • 23 Pages u9ohnotes18f2005
    U9ohnotes18f2005

    School: BYU

    Unit 9: The Gas Laws The Atmosphere an ocean of gases mixed together Composition nitrogen (N2)~78% oxygen (O2).~21% argon (Ar).~0.93% carbon dioxide (CO2).~0.03% water vapor (H2O)~0.1% Depletion of the Ozone Layer Ozone (O3) in upper atmosphere blocks ult

  • 11 Pages u6ohnotes18f2005
    U6ohnotes18f2005

    School: BYU

    Unit 6: The Mathematics of Chemical Formulas # of H2O molecules # of H atoms # of O atoms 1 2 1 2 4 2 3 6 3 100 200 100 6.02 x 1023 2 (6.02 x 1023) 6.02 x 1023 mass: 18 g mass: 2g mass: 16 g molar mass: the mass of one mole of a substance PbO2 Pb: 1 (207.

  • 8 Pages exam-review-answers
    Exam-review-answers

    School: BYU

    1. 19F: 9e, 9p+, 10n0 Ar-40: 18e, 18p+, 22n0 2. a) Al2S3 b) MgO 3. NaF = 4.0 0.9 = 3.1: ionic, London. H2O = 3.5 2.1 = 1.4: dipole-dipole (specifically H-bonding), London. O2 = 3.5 3.5 = 0: London 4. H: 3.03/98 x 100 = 3.1% H P: 30.97/98 x 100 = 31.6% P O

  • 24 Pages u3ohnotesf2005
    U3ohnotesf2005

    School: BYU

    Unit 3: Atomic Structure Basics of the Atom Particle Charge Location in the Atom Mass proton 1+ in nucleus ~1 a.m.u. neutron 0 in nucleus ~1 a.m.u. electron 1 orbits nucleus ~0 a.m.u. a.m.u.: unit used to measure mass of atoms atomic number: # of p+ - the

  • 19 Pages u2ohnotes18f2005
    U2ohnotes18f2005

    School: BYU

    Unit 2: Matter and Energy Matter Introductory Definitions matter: anything having mass and volume mass: the amount of matter in an object weight: the pull of gravity on an object volume: the space an object occupies units: L, dm3, mL, cm3 L3 state of matt

  • 16 Pages u1ohnotes18f2005
    U1ohnotes18f2005

    School: BYU

    Unit 1: Introduction to Chemistry Internet web site: www.unit5.org/christjs/ Safety #1 Rule: Use common sense. Others: No horseplay. No unauthorized experiments. Handle chemicals/glassware with respect. Safety Features of the Lab shower fire extinguisher

  • 17 Pages stoichohnotes18f2005
    Stoichohnotes18f2005

    School: BYU

    Unit 8: Stoichiometry - involves finding amts. of reactants & products in a reaction What can we do with stoichiometry? For generic equation: RA + R B P 1 + P 2 Given the one can find the amount of RA (or RB) amount of RB (or RA) that is needed to react w

  • 14 Pages chemeqohnotes18f2005
    Chemeqohnotes18f2005

    School: BYU

    Unit 7: Chemical Equations Evidence of a chemical reaction: heat, light, sound, gas emitted, color change, odor A reaction has occurred if the chemical and physical properties of the reactants and products differ. For a reaction to occur, particles of rea

  • 4 Pages galvanic-lab-answers
    Galvanic-lab-answers

    School: BYU

    Making Galvanic Cells Lab No bridge 0V 0V Voltag e 2.0 V 1.1 V Points to Cu Cu Deposi t Cu Cu Cu Al Cu Zn Al Zn 0V 0.9 V Zn Zn 3) The salt bridge allows the cell to continue to Cu Zn cell Electron flow Cu (+) Salt bridge Zn () Al Zn cell Electron flow Al

  • 4 Pages esters-lab-answers
    Esters-lab-answers

    School: BYU

    Esterification reactions 1) salicylic acid + methanol methyl salicylate OH O O H , heat + OH + H 2O O CH3 H + HOCH3 O Note that many of these names have been left as common names 2) salicylic acid + isoamyl alcohol isoamyl salicylate OH O O OH H + HO CH3

  • 9 Pages alkane-alkene-lab-answers
    Alkane-alkene-lab-answers

    School: BYU

    Chemical Reactions of Alkanes and Alkenes 1. Structure cyclohexane cyclohexene CH2 CH2 H2C H2C CH2 H C C H H C H C C H H CH2 CH2 HC HC CH2 H H C C H C H C C H H CH2 CH2 Or H H H Or H H H H H H C H C Table: 2-7 Cyclohexane Polarity Non-polar Solubility Ins

  • 7 Pages solubility-rules-lab-answers
    Solubility-rules-lab-answers

    School: BYU

    Solubilityrules: Solubilityrules: Answerstolab Br Ag+ Al3+ Ba2+ Ca2+ Co2+ Cu2+ Fe3+ X Cl CO32 NO3 OH PO43 SO32 SO42 X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X K+ Na+ Ni2+ NH4+ X 1. 3. 5. 7. Answers 1 - 8 Answers Alkali metals (IA) 2. N

  • 8 Pages alkali-metals-lab-answers
    Alkali-metals-lab-answers

    School: BYU

    Reaction of Alkali Metals with Water Observations Observations Li Appear Hardness Behaviour Splint Litmus Na Shiny / Lustre Soft Softer floats/surface, melts, bubbles/moves/fizz Pop Blue/base K Softest Flame Nothing Answers to Questions 1-4 Answers 1. K w

  • 6 Pages solubility-curves-lab-answers
    Solubility-curves-lab-answers

    School: BYU

    Solubilitycurves Solubilitycurves Class data Class Mass Temp Mass Temp 3 0 30 69 10 28 35 76 15 40 40 83 20 52 45 87 25 60 50 93 Write down the data & answer questions on bottom of the sheet Solubility curve for KClO3 60 10 g / 100 g 50 40 30 20 10 0 0 10

  • 1 Page organic-food-lab-answers
    Organic-food-lab-answers

    School: BYU

    Organic chemistry lab Organic 1. Black, 2. Carbon , 3. Salt / sodium chloride Sodium, chlorine, Carbon 2. 4 / four 3. Thousands or infinite 4. Carbon retains ability to hold on to other nonmetal atoms, or they can be in rings, or they are longer 5. Can fo

  • 3 Pages molar-volume-lab-answers
    Molar-volume-lab-answers

    School: BYU

    Molar volume calculations Molar volume calculations a) 3.00 cm b) 0.0143 g/cm c) Mass = g/cm x cm = 0.0143 g/cm x 3.00 cm = 0.0429 g d) Moles = g x mol/g= 0.0390 g x 1 mol/24.31 g = 0.001765 mol e) Moles H2 = Moles Mg = 0.001765 mol f) should be higher #

  • 3 Pages magnesium-lab-answers
    Magnesium-lab-answers

    School: BYU

    1. Carbon monoxide= CO, carbon dioxide= CO2 2. When there is insufficient oxygen 3. CO; it binds strongly to hemoglobin interfering with oxygen transport in blood 4. N2O vs. NO2, H2O vs. H2O2 5. Definite proportions: a compound contains the same elements

  • 4 Pages limiting-reagents-lab-answers
    Limiting-reagents-lab-answers

    School: BYU

    1) 2) CaCl22H2O(aq) + Na2CO3(aq) 2H2O + CaCO3(s) + 2NaCl(aq) # mol CaCl22H2O= 3) 2.00 g CaCl22H2Ox 1 mol CaCl22H2O = 0.0136 mol 147.02 g CaCl22H2O CaCl22H2O # mol Na2CO3 = 1.00 g Na2CO3 x 1 mol Na2CO3 = 0.00943 mol Na2CO3 105.99 g Na2CO3 What we have Wha

  • 12 Pages solutions-stoichiometry
    Solutions-stoichiometry

    School: BYU

    Stoichiometry overview Recall that in stoichiometry the mole ratio provides a necessary conversion factor: molar mass of x molar mass of y grams (x) moles (x) moles (y) grams (y) mole ratio from balanced equation We can do something similar with solutions

  • 6 Pages straw-lab-marking
    Straw-lab-marking

    School: BYU

    Results - Equilibrium lab (1) Title (1) Volume on y-axis Equilibrium - results from Part 1 (1) Curve 60 50 40 30 20 10 0 0 5 10 15 20 Total: /5 (1) lines meet Volume (mL) GC 1 GC 2 # of transfers (1) # transfers on x-axis Equilibrium - results from Part 2

  • 1 Page titration-lab-I-Equipment
    Titration-lab-I-Equipment

    School: BYU

    Titration introduction Purpose : neutralization reaction - quantitative measure (how much acid, how much base?) Setup : burette clamps, retort stands. Equipment : rinsing procedure (see handout) Pipettes : review how to measure 10 mL. Burettes : expe

  • 7 Pages titration-lab-II
    Titration-lab-II

    School: BYU

    NaOH + HCl NaOH HCl Volume used (mL) Molarity (M) NaOH + H2SO4 NaOH H2SO4 10 34.3 10 17.1 0.6 0.175 0.6 0.175 1. Neutralization 2. NaOH + HCl H2O + NaCl 2NaOH + H2SO4 2H2O + Na2SO4 3. Twice as much HCl was required. Because it takes twice as much HCl (one

  • 6 Pages cyclohexane-cyclohexene-lab-answers
    Cyclohexane-cyclohexene-lab-answers

    School: BYU

    Chemical Reactions of Alkanes and Alkenes Structure cyclohexane cyclohexene CH2 CH2 H2C CH2 CH2 HC H2C HC H CH2 CH2 H H C H C H H H C C CH2 H H C H C H H CH2 H H H C C H H C C H C H C H H H Solubility H2SO4 & H2O Br2 before after KMnO4 before after Cycloh

  • 4 Pages conductivity-lab-answers
    Conductivity-lab-answers

    School: BYU

    Observations 1 Distilled H2O -2 Tap water -HC2H3O2(aq): 3 NaCl 5 CuSO4 acetic acid 4 5 5 Sugar 5 HCl(aq): 6 Alcohol 5 hydrochloric acid 7 HCl 5 8 HCl 1 NaOH(aq): HC2H3O2 9 5 sodium hydroxide 10 HC2H3O2 1 CuSO4(aq): 11 NaOH 5 NaOH 1 copper(II) sulfate 12 1

  • 4 Pages combustion-lab-answers
    Combustion-lab-answers

    School: BYU

    Part 1 3. Yes 5. C25H52 + 38O2 25CO2 + 26H2O Part 2 8. 2C2H2 + 5O2 4CO2 + 2H2O 9. Complete: 1/10, Incomplete: 1 11. Black deposit/product 12. Yes Questions 1. H2O and CO2 2. C, CO, CO2, H2O (always produced) 4. All of the oxygen would be used up & some ex

  • 4 Pages carbon-in-foods-lab-answers
    Carbon-in-foods-lab-answers

    School: BYU

    Introduction to Organic Chemistry Introduction 1. Black 2. Carbon , 3. Salt / sodium chloride Sodium, chlorine , Carbon 4. Wohler made urea, showing that organic compounds can be synthesized outside of a life form Organic (from life) is misleading 5. 9 mi

  • 2 Pages candle-lab-answers
    Candle-lab-answers

    School: BYU

    Data: 0.66 g, 29.0C = 4.18 J/gC x 200 g x 29.0C = 24244 J or 24.2 kJ 3. 24.2 kJ/0.66 g = 36.7 kJ/g 4. 36.7 kJ/g x 352.77 g/mol = 12958 kJ/mol or # mol= 0.66 g 352.77 g/mol=1.87x103 mol 24.2 kJ/1.87x103 mol = 12958 kJ/mol 5. C25H52 + 38O2 25CO2 + 26H2O + 1

  • 3 Pages two-solids-lab-answers
    Two-solids-lab-answers

    School: BYU

    Physical Properties of Two Solids NaCl Odour Ionic/Covalent Melting point Boiling point Hardness Solubility (in water) Conductivity (solid) Conductivity (dissolved) Solubility (non-polar) Camphor nil Ionic High High Hard/brittle soluble poor good strong C

  • 3 Pages calorimetry-lab-answers
    Calorimetry-lab-answers

    School: BYU

    The candle lab: calculations Data: 0.95 g, 30.6 C 1. q = heat/energy change, units: J or Joules c = specific heat, units: J/gC m = mass, units: g or grams T= temperature change, units: C 2. 200 g 3. q = cm T = 4.18 J/gC x 200 g x 30.6 C = 25 582 J or 25.6

  • 1 Page calcium-water-lab-answers
    Calcium-water-lab-answers

    School: BYU

    The Reaction of Calcium with Water 1. O2, H2, N2, F2, Cl2, Br2, I2 2. Ca + 2H2O H2 + Ca(OH)2 3. H2 (note hydrogen refers to both the element and the diatomic gas) 4. 2H2 + O2 2H2O 5. 2:1 6. 2:1 7. The tube has a H2:O2 of 1.7:1 ratio (closest to 2:1) 8. Ye

  • 5 Pages boyles-law-lab-answers
    Boyles-law-lab-answers

    School: BYU

    Boyles law lab Purpose: to investigate mathematical relationship between pressure and volume Sample calculations: Diameter of piston 2.40 cm (2.30-2.50) Radius 1.20 cm Area r2 4.52 cm2 (4.15 - 4.91) Book pressure average book weight area of contact 85

  • 6 Pages molar-solutions-solids
    Molar-solutions-solids

    School: BYU

    Making Molar Solutions From Solids What are molar solutions? What A molar solution is one that expresses concentration in moles per volume Usually the units are in mol/L mol/L can be abbreviated as M or [ ] Molar solutions are prepared using: a balance to

  • 30 Pages u7
    U7

    School: BYU

    Chemistry Unit 7: Chemical Equations Evidence of a chemical reaction: odor light heat gas emitted sound color change A reaction has occurred if the chemical and physical properties of the reactants and products differ. For a reaction to occur, particles o

  • 41 Pages Saferule
    Saferule

    School: BYU

    Laboratory Safety Rules While working in the science laboratory, you will have certain important responsibilities _ that do not apply to other classrooms. You will be working with materials and apparatus which, if handled carelessly or improperly, have in

  • 8 Pages orbitals-electron-configuration
    Orbitals-electron-configuration

    School: BYU

    Orbitals and Electron configurations Pauli Exclusion Principle Reference: pg. 203 The Pauli Exclusion Principle states that each electron (waveform) has a unique set of quantum numbers No two electrons can have the same values for all quantum numbers Kin

  • 1 Page Printable Periodic Tables
    Printable Periodic Tables

    School: BYU

    Printable Periodic Tables Click on the element symbol to download the PDF file. All of the following tables are in Acrobat PDF format. To view and print these files, you will need to install the free Adobe Acrobat Reader program on your computer. The prog

  • 1 Page ocean-world-answers
    Ocean-world-answers

    School: BYU

    Ocean World /20 /20 Ocean 12. So offspring can avoid predators (overwhelm) 1. An Elephant 13. Humpback () 2. 97 whales () (sea lions) 3. Dolphin 4. Plants & animals 14. To breed (lay eggs) 15. Crabs, birds, gulls, 5. For cleaning 6. Sardines bears, ducks

  • 186 Pages periodic table
    Periodic Table

    School: BYU

    Periodic Table of the Elements 1 2 H He 5 6 7 8 9 10 13 14 15 16 17 18 30 31 32 33 34 35 36 47 48 49 50 51 52 53 54 79 80 81 82 83 84 85 3 4 11 12 19 20 21 22 23 24 25 26 27 28 29 37 38 39 41 41 42 43 44 45 46 55 56 57 72 73 74 75 76 77 78 87 88 89 104 10

  • 11 Pages nuclear-energy
    Nuclear-energy

    School: BYU

    NuclearEnergy NuclearEnergy Einstein suggested that mass and energy are related by E=mc2 (c = 3.0 x 108 m/s) E: energy, m: mass, c: speed of light Converting the mass of one penny could provide the entire energy requirements for 700 people for one year P

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