Course Hero has millions of student submitted documents similar to the one
below including study guides, practice problems, reference materials, practice exams, textbook help and tutor support.
Find millions of documents on Course Hero - Study Guides, Lecture Notes, Reference Materials, Practice Exams and more.
Course Hero has millions of course specific materials providing students with the best way to expand
their education.
Below is a small sample set of documents:
North Texas - CHEM - 1010
Naming Hydrocarbons(nomenclature)Handout: Hydrocarbons: IUPAC namesDrawing structures: its all good2-buteneH H C H C H C H H C H HH C H3C C HCH3CH H3CH3CCHCH3CH3H3C CH CH CH3This is called the condensed structure On a test, choose a method t
North Texas - CHEM - 1010
Naming Hydrocarbons(nomenclature)HDrawing structures: its all good2-buteneH C H C H C H H C H HH C H3 C C HCH3CH H 3CH 3CCH3 CHCH3H 3C CH CH CH 3Handout: Hydrocarbons: IUPAC namesThis is called the condensed structure On a test, choose a met
North Texas - CHEM - 1010
3Cl PO43Net ionic equations and solubility rulesS2 Na+ 2Ca2 Al3+ + Ionic (i.e. salt) refers to +ve ion plus -ve ion Usually this is a metal + non-metal or metal + polyatomic ion (e.g. NaCl, NaClO3, Li2CO3) Polyatomic ions are listed on page 71 (aq) mea
North Texas - CHEM - 1010
Review: forming ions Ionic (i.e. salt) refers to +ve ion plus -ve ion Usually this is a metal + non-metal or metal + polyatomic ion (e.g. NaCl, NaClO3, Li2CO3) Polyatomic ions are listed on page 71 (aq) means aqueous (dissolved in water) For salts (aq) m
North Texas - CHEM - 1010
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
North Texas - CHEM - 1010
Nuclear EnergyMass and energy Mass 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 on
North Texas - CHEM - 1010
Orbitals and Electron configurationsPauli 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
North Texas - CHEM - 1010
Orbitals and Electron configurationsPauli 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
North Texas - CHEM - 1010
Shapes and Orientations of Orbitals1 2 3 4 5 6 7s (n)Periodic table arrangementd (n - 1) p (n)f (n -2) the quantum theory helps to explain the structure of the periodic table. n - 1 indicates that the d subshell in period 4 actually starts at 3 (4 -
North Texas - CHEM - 1010
Periodic table and quantum theoryShapes and Orientations of Orbitals The 2, 6, 10, 14 columns of the periodic table correspond to s (l=0, ml=0), p (l=1, ml= -1,0,1), d (l=2, ml= -2,-1,0,1,2) and f (-3,-2,-1,0,1,2,3) See fig. 6.21 (pg. 208) and fig. 6.22
North Texas - CHEM - 1010
Organic chemistry review1. Draw structures for the following compounds: a) 2-methylbutane b) 3,3-dichlorohexane c) 4-ethyl-3,3,4-trimethyldecane d) ethanamide e) cis-1,3-dimethylcyclohexane f) g) h) i) j) 2-methyl-4-octanol propanal methyl ethanoate meth
North Texas - CHEM - 1010
Organic chemistry lab Organic1. 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
North Texas - CHEM - 1010
Organic SynthesisHow can we form this?Br CH3CH3CH CH CH2 Substitution? No; the pi bond will break before Br contributes to a CH2 CH CH2 substitution reaction Br We could use hydrogenation C C CH2 of 1-bromo-1-butyne (provided only one of the Br CH2 CH
North Texas - CHEM - 1010
Organic SynthesisHow can we form this? Br CH CH2 CH3How do we choose between reactions?Notice that their may be more than one way to form a particular compound The handout is an oversimplification There are thousands of reaction mechanisms, many of whi
North Texas - CHEM - 1010
Type and definition of reaction: 1. Substitution (pg. 1025) The replacement of one atom (or group) by another atom (or group). Note substitution is the only way to add a halogen to an alkane.Example propane + Br2HReaction equation, structural formulas,
North Texas - CHEM - 1010
The structure of the periodic tableShorthand electron configurations Recall that we can indicate position of electrons via orbital diagrams or electron configurations. Fitting 100 or more electrons into this pattern becomes cumbersome. We can write shor
North Texas - CHEM - 1010
Predicting Predicting thepHof saltsolutionsHydrolysis of ions HydrolysisHydrolysis refers to a reaction with water (e.g. splitting water into H+ and OH) When salts are added to water, pH can change E.g. when Na3PO4 is added to water, ions form Na3PO4(aq
North Texas - CHEM - 1010
Predicting Predicting the pH of salt solutionsHydrolysis of ions HydrolysisHydrolysis refers to a reaction with water (e.g. splitting water into H+ and OH) When salts are added to water, pH can change E.g. when Na3PO4 is added to water, ions form Na3PO4
North Texas - CHEM - 1010
Quantum Mechanics:the sequelQuantum Numbers Read on pg. 200 from The theory of quantum (about third paragraph) to Theml : the magnetic quantum number Recall: we are looking at the first three ofml : the magnetic quantum numberRead the remainder of
North Texas - CHEM - 1010
Quantum Mechanics:Quantum Numbers Read on pg. 200 from The theory of quantum (about third paragraph) to The Magnetic Quantum Number, ml on pg. 201. Do PE 3the sequelml : the magnetic quantum number Recall: we are looking at the first three of four qu
North Texas - CHEM - 1010
Quantum Mechanics We will see: electrons have discrete energies, not because they are in shells but because they can only have certain wavelengths Line spectra are not due to electrons jumping from shell to shell (as in Bohrs model) Instead theyre due to
North Texas - CHEM - 1010
Quantum MechanicsQuantum Mechanics overview We will see: electrons have discrete energies, not because they are in shells but because they can only have certain wavelengths Line spectra are not due to electrons jumping from shell to shell (as in Bohrs m
North Texas - CHEM - 1010
Rates of Reaction Read 18.1 pg. 737-738 Demonstration of variations in reaction rates: Ca vs. Na vs. Li in water to produce H2 gas Flour burning in air2 424-8H + C O + MnO Mn2+ + 4H2O + CO2 From the list predict the fastest (1) to slowest (4) 0.5 M 1.0
North Texas - CHEM - 1010
Rates of Reaction Read 18.1 pg. 737-738 Demonstration of variations in reaction rates: Ca vs. Na vs. Li in water to produce H2 gas Flour burning in air2 424-8H + C O + MnO Mn2+ + 4H2O + CO2 From the list predict the fastest (1) to slowest (4) 0.5 M 1.0
North Texas - CHEM - 1010
Rates of reaction Read 18.1 pg. 737-738 Demonstration of variations in reaction rates: Ca vs. Na vs. Li in water to produce H2 gas Flour burning in air 8H+ + C2O42- + MnO4- Mn2+ + 4H2O + CO2 H2SO4, H2C2O4 (oxalic), KMnO4 provide ions From the list predic
North Texas - CHEM - 1010
Reaction ReversibilitySample problem (similar to 11 & 12)Concentration (mol/L) N2O4 2NO2. N2O4: Start = 1.0, finish = 0.20 2 NO2 (1.60) 1 N2O4 (0.20)Time N2O4 : first find start and finish, then draw curve Start = 1.0, finish = 0.20 NO2 : first find st
North Texas - CHEM - 1010
Reaction ReversibilityRead 14.2 (pg. 553) 1. Colourless N2O4 gas breaks down into brown NO2 gas. Write the equilibrium equation for this reaction. 2. How is the existence of equilibrium indicated in a chemical equation? 3. Because the two gasses in this
North Texas - CHEM - 1010
Unit7:Redox& Unit7:Redox&ElectrochemistryWhats the point ? WhatsREDOX reactions are important in Purifying metals (e.g. Al, Na, Li) Producing gases (e.g. Cl2, O2, H2) Electroplating metals Electrical production (batteries, fuel cells) Protecting metals
North Texas - CHEM - 1010
Unit 7: Redox &Whats the point ?REDOX reactions are important in Purifying metals (e.g. Al, Na, Li) Producing gases (e.g. Cl2, O2, H2) Electroplating metals Electrical production (batteries, fuel cells) Protecting metals from corrosion Balancing complex
North Texas - CHEM - 1010
Cellpotentialsand Cellpotentialsand ReductionpotentialsAnswers 1 - 5 Answers1. The difference is - indicating 25C and 1 M concentrations (1) 2. Voltages can be increased by arranging cells in series (1) (or changing concentrations) 3. A measure of the t
North Texas - CHEM - 1010
Results - Equilibrium lab(1) Title (1) Volume on y-axisEquilibrium - results from Part 1(1) Curve60 50 40 30 20 10 0 0 5 10 15 20Total: /5 (1) lines meetVolume (mL)GC 1 GC 2# of transfers(1) # transfers on x-axisEquilibrium - results from Part 2
North Texas - CHEM - 1010
6.2 What does the nucleus determine about an atom? What part of an atom is involved in chemical reactions? Define electronic structure. Define electromagnetic energy.The mass and the number of electrons needed to give the atom electric neutrality. The ou
North Texas - CHEM - 1010
6.4 Why was Bohr's model ineffective? Who first proposed the wave model? de Broglie's wave equation is = h/mv,; name the variablesBits of matter, such as electrons behave as waves. Louis de Broglie. = h/mv, = wavelength of matter, h = plank's constant, m
North Texas - CHEM - 1010
6.6 It is known as the spin quantum number (or ms). It can be either +1/2 or -1/2. It is important because it tells us that each orbital can have a maximum of only two electrons. The pauli exclusion principle says that no two electrons in the same atom ma
North Texas - CHEM - 1010
Atomic bonding and Molecular Structure: How and why atoms combine When atomic-sized particles combine, they release energy and become more stable. When a bond between atomic sized particles is broken, they absorb energy and become less stable. Temperatur
North Texas - CHEM - 1010
7.2 How are Lewis symbols written?Why do Be, B, and C have 2, 3, and 4 unpaired electron's according to their Lewis structure, but not according to their electron configurations? What is a quick way to check the number of valence Look at the group number
North Texas - CHEM - 1010
7.10 How does HCl differ from Cl2 with respect to the sharing of electrons? What happens in a molecule due to differences in the pull on electrons (give term and symbol)? What name is given to a bond that has partial charges? How is a dipole represented g
North Texas - CHEM - 1010
The diffusion of gasses (e.g. perfume in a room, or the mixing of two gasses), the diffusion of liquid in liquid (e.g. a drop of food colouring in water). Why does alcohol easily dissolve in water? Because the attraction of water (polar) to alcohol (polar
North Texas - CHEM - 1010
24.1 (and heating food substances lab) What evidence do we have that carbon is present in most foods? Why is the term organic chemistry misleading? Which compounds are inorganic and which are organic?When most foods are heated they turn black. This indic
North Texas - CHEM - 1010
Naming compounds with functional groups You should be familiar with the rules for naming compounds that contain functional groups (handout) Give structures for these common names Methyl alcohol CH3OH Ethyl alcohol CH3CH2OH OH Isopropyl alcoholH3C CH CH3
North Texas - CHEM - 1010
Thermochemistry Study Notes (chapter 5)You should be familiar with the sample calculations in chapter 5 (especially examples 5.4, 5.7, and 5.8). 5.1-5.2 How many Joules are in one calorie? Give waters specific heat (with units) Define thermal property. G
North Texas - CHEM - 1010
H is the enthalpy change for a reaction. H is the enthalpy change for a reaction occurring at 25C and 1 atm. What is another name for H? Standard heat of reaction (25C and 1 atm are standard conditions). Why is it useful to express H values The H for a re
North Texas - CHEM - 1010
Rates of reaction18.1-18.2 Define mechanism of reaction. Why would we expect that the burning of propane does not occur in a single step? The series of individual steps leading to the overall reaction.The chemical equation for burning propane is: C3H8(g
North Texas - CHEM - 1010
Fraction of moleculesWhat name is given to the Activation energy (or Ea). minimum energy required for a reaction? Sketch a graph showing the typical distribution of kinetic energy (KE) among molecules.Kinetic energy Fraction of moleculesWhat is the na
North Texas - CHEM - 1010
14.1 Define chemical equilibrium. A chemical equilibrium is dynamic. What does this indicate? How are equilibrium reactions written differently than other chemical reactions? Explain how an equilibrium forms from pure reactants.Concentrations of reactant
North Texas - CHEM - 1010
14.6 Why is it useful to write the mass action expression with product concentrations in the numerator? What do large and small values of Kc tell us? Give an example of a reaction that has a large value of Kc. 14.7 State Le Chateliers principle. Which fac
North Texas - CHEM - 1010
Unit 6 - Equilibrium ApplicationsThis is a continuation of the last unit (Equilibrium). Because many of the concepts here build on past material, you should be familiar with the last unit. For example, you should know how to a) set up an equilibrium law,
North Texas - CHEM - 1010
A chart with the Molar ratios, [Initial], [Change], and [Equilibrium] of all products (as a mnemonic remember RICE, MICE, or ICE box). Since the reactant is a solid, it is ignored. You are told that the molar solubility PbF2(s) Pb2+(aq) F(aq) of PbF2(s) i
North Texas - CHEM - 1010
The [H+] of a solution with pH=2 is how many times different than the [H+] of a solution with pH=3? 11.2, 11.7, 11.9 Give the Arrhenius definition of acids and bases. Distinguish between dissociation and ionization. Give an example of each.10 times great
North Texas - CHEM - 1010
How are oxidation and reduction Oxidation is an increase in oxidation number, reduction is a related to changes in oxidation #? decrease in oxidation number. 0 0 +1 1 In the reaction H2 + Cl2 2HCl which element is oxidized, which is H2 + Cl2 2HCl H is oxi
North Texas - CHEM - 1010
Explain why, in galvanic cells, the cathode is positive?Galvanic cells spontaneously produce electricity. The negative electrode acquires electrons that are lost from metal atoms as they become positive ions. This is oxidation (LEO). Thus, the negative e
North Texas - CHEM - 1010
Writing Thermochemical EquationsA thermochemical equation is a chemical equation that includes the value of H Example 1: Burning one mole of wax releases 20,000 kJ of heat energy This could be written as: C40H82 + 60.5 O2 40 CO2 + 41 H2O + 20,000 kJ Inst
North Texas - CHEM - 1010
Thermochemical equationsAnswersC + O2 CO2 393.5 kJ2HI H2 + I2 53.2 kJAnswers pg. 175, Q 5.45-5.505.45 - At STP (25C and 1 atm) 5.46 - The H value 5.47 - Moles. (You cant have 1/2 an atom) 5.48 - answer in back of book 4Al(s) + Fe2O3(s) 2Al2O3(s) + 4F
North Texas - CHEM - 1010
Specific heat capacity (a.k.a. Specific heat) symbolized as c, units in J/gC Its the heat required to raise 1 gram of a substance by 1 C Heat capacity calculated by c x m, units in J/C Its the heat required to raise the temperature of an object by 1 C. Mo
North Texas - CHEM - 1010
Thermochemistry background: Definitions from 5.3, 5.41. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. Thermochemistry The study of the energy changes in chemical reactions. System That part of the universe we wish to study. Surroundings That part of the univer
North Texas - CHEM - 1010
ThermochemistryRead pg. 152, 153. 1. Distinguish between these terms: specific heat capacity, specific heat, heat capacity, molar heat capacity. 2. For yesterdays lab, find: a) q (the energy released/absorbed), c) the heat capacity of the water, and b) t
North Texas - CHEM - 1010
AcidBase AcidBase TitrationPrelab question PrelabMA x #H x VA = MB x #OH x VB MA = 6 M, #H = 2, VA = ? MB = 0.5 M, #OH = 1, VB = 0.5 L (6 M)(2)(VA) = (0.5 M)(1)(0.5 L) VA = (0.5 M)(1)(0.5 L) / (6 M)(2) VA = 0.25 mol / 12 M = 0.0208 L = 20.8 mLTypical r
North Texas - CHEM - 1010
kinetic vs. potential energy diagrams Recall the Maxwell-Boltzman distribution (i.e. kinetic energy diagram) EaPotential Energy (Ep)Fraction o moleculesKinetic energy Path of reaction The Ea is a critical point. To examine it more closely we can us
North Texas - CHEM - 1010
kinetic vs. potential energy diagramsFraction of moleculesPotential Energy (Ep)potential energy graph: a closer lookEp (Potential energy stored in chemical bonds)Reactants Activated complex / transition state Recall the Maxwell-Boltzman distribution
North Texas - CHEM - 1010
Review: Energy Changes, Rates of Reaction and Nuclear EnergyQuestions 1 - 31. 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
North Texas - CHEM - 1010
Questions 1 - 3Review: Energy Changes, Rates of Reaction and Nuclear Energy1. a) exothermic b) endothermic c) exothermic d) exothermic e) exothermic (in the forward direction) 2. q = cmT = 4.1796 J/gC x 500 g x 0.4 C = 835.92 J = 0.83592 kJ # mol = 10 g