7 Million Study Materials
From students who've taken these classes before
From students who've taken these classes before
24/7 Access to Tutors
Personal attention for all your questions
Personal attention for all your questions
Learn
93% of our members earn better grades
93% of our members earn better grades
Stony Brook University | CHE 129/130
GENERAL CHEMISTRY IA
Professors
- Hanson
Relevant Courses
28 sample documents related to CHE 129/130
-
Stony Brook University CHE 129/130
Question from Last Time How many goals are there for CHE 129, and what are they? A) 1 B) 2 C) 3 D) 4 E) 5 Master chemistry content Build life-long learning skills Enhance performance & knowledge level Have everyone succeed 1 Strategy for Scoring the Goa -
Stony Brook University CHE 129/130
Question from Last Time Are all of the following statements correct? (A) yes (B) No Sodium and chlorine are elements. Sodium chloride is a compound. Sodium, chlorine, and sodium chloride all are pure substances. Sodium chloride (table salt) and water fo -
Stony Brook University CHE 129/130
Question from Last Time A)$6.49 B)$9.46 C)$19.46 D)$29.94 Use unit conversion & unit analysis You travel back in time to 1859 when beer kegs were sold by the firkin and tierce. If a firken of beer costs $1.39, how much would you pay for 3 tierce of beer -
Stony Brook University CHE 129/130
Question from Last Time Use unit analysis to decide which one of the following statements A - D is not correct. If more than one is not correct, respond E. A) To convert grams of a substance to moles, divide by the molar mass. B) To convert moles of a sub -
Stony Brook University CHE 129/130
Question from Last Time Does each of the following structures have the molecular formula C6H14? A) yes B) no 1 These molecules are structural isomers (aka constitutional isomers), which means they have the same number of atoms of each kind (same molecular -
Stony Brook University CHE 129/130
Question from Last Time Which one of the following associations of names with chemical formulas is not correct? A) B) C) D) E) Na2SO4 CaCO3 Mn(OH)2 K2HPO4 Fe(NO3)3 Group 1 is 1+ sodium sulfate Group 2 is 2+ calcium carbonate manganese hydroxide potassium -
Stony Brook University CHE 129/130
Question from Last Time: Name this Alkane! A) B) C) D) E) 3,6,7-trimethyldecane 6-ethyl-3,7-dimethylnonane 4-ethyl-3,7-dimethylnonane 2,5-diethyl-6-methyloctane Some other name. In deciding on the order of the names of side chains, ignore the numerical pr -
Stony Brook University CHE 129/130
Question from Reading MSJ 7.1-7.3 Which one of the following topics was not discussed in these sections? A) Electromagnetic radiation. B) Relationship between the frequency and wavelength of light. C) The idea that energy is quantized. D) The idea that el -
Stony Brook University CHE 129/130
What is the energy difference between the two states of mercury that are associated with the emission of 404 nm light? h = 6.626 x 10-34 J s Eatom = Ephoton 8 m/s c = 3.00 x 10 Ephoton = h = hc/ Draw an energy level diagram to represent what this questi -
Stony Brook University CHE 129/130
Room Assignments for Exam 1 Tuesday, September 29th, 8:30 10:00 PM Solar ID 000000000 107101712 107101713 107279101 107279102 999999999 Room Javits 100 main floor Javits 102 Javits 100 balcony 1 Summary: What we learned last time! Electrons have wave-li -
Stony Brook University CHE 129/130
Exam Protocols Bring two or more number 2 pencils with good erasers. Bring a \"scientific calculator\" with extra batteries. Do not bring cell phones, beepers, textbooks, notes of any kind, or other communication devices. Do not enter the room until tol -
Stony Brook University CHE 129/130
In which shell will an electron most likely be located furthest from the nucleus of an atom and therefore have the smallest attraction to the positively charged nucleus? A) n = 1 B) n = 2 C) n = 3 D) n = 4 1 Radial Probability Density (r,) = amplitude -
Stony Brook University CHE 129/130
Compare the relative sizes of Li (Z=3), its cation, Li+, and its anion, Li-. What would you predict? A) Li < Li+ < LiB) Li- < Li < Li+ C) Li+ < Li < LiD) Li+ < Li- < Li E) All have the same diameter. In all these selections, size increases in going from -
Stony Brook University CHE 129/130
Question from last time: Why don\'t carbon and oxygen form an ionic bond? Energy change = ionize C attach e to O stabilize ion pair = (1086 141 935) kJ/mol = +10 kJ/mol How many of the following statements are correct. The energy increases: C & O atoms are -
Stony Brook University CHE 129/130
Which is the most likely bonding framework for methanol, CH4O? A) C) H H H C O H H C H O H C H B) H O H C H O H D) H H H H H can not be in the center because it only forms 1 bond O is the most electronegative so it should be on the outside C should be in -
Stony Brook University CHE 129/130
Which is the best representation of the cyanate anion? And why do you think so? Formal Charge (A) N -1 C 0 O 0 (B) 0 0 -1 (C) C O -2 0 +1 1 Guided Explorations 08-2, p 73 Electronegativity & Bond Properties The ability of an atom to attract electrons in -
Stony Brook University CHE 129/130
What is your friend\'s theory: why do molecules have the geometries (shapes) that they do? Why is water bent and not linear? Why is carbon dioxide linear and not bent? Why is sulfur dioxide bent and not linear? Do you (A) agree or (B) disagree? 1 V P R S E -
Stony Brook University CHE 129/130
2 Chapter 1: The Nature of Chemistry End-of-Chapter Solutions for Chapter 1 Questions for Review and Thought Review Questions 1. The structure of a molecule refers to the way atoms are connected together in the molecule and to the three dimensional arrang -
Stony Brook University CHE 129/130
Chapter 2: Atoms and Elements 25 End-of-Chapter Solutions for Chapter 2 Summary Problem Answer: (a) silver, Ag (b) Z = 47, A = 109, (c) Atomic weight = 107.8 (d) Group 1B, metal (e) (i) 9.27 103 mol Ag (ii) 5.58 1021 Ag atoms (iii) 1.70 1012 m Strategy an -
Stony Brook University CHE 129/130
Chapter 3: Chemical Compounds 61 End-of-Chapter Solutions for Chapter 3 Summary Problem P a rt I Answer: 1. (a) NH4ClO4 (b) NH4ClO3 (c) NH4ClO2 2. (a) NH4+, ClO4 (b) Yes; it contains ions. 3. 5.8 106 mol NH4ClO4 Strategy and Explanation: Given the names o -
Stony Brook University CHE 129/130
Chapter 4: Quantities of Reactants and Products 115 End-of-Chapter Solutions for Chapter 4 Summary Problem Answer: (a) 10.0 g CO (b) 8.27 g CO2 (c) CO is limiting (d) Fe2O3 is limiting (e) 94.7% Strategy and Explanation: Given the balanced equation for a -
Stony Brook University CHE 129/130
Chapter 5: Chemical Reactions 171 End-of-Chapter Solutions for Chapter 5 Summary Problem Answer: (a) Au is oxidized. (b) O2 is reduced. (c) O2 is the oxidizing agent. (d) Au is the reducing agent. (e) 3.7 g NaCN (f) 190 g Au (g) 95 g NaCN (h) 26 L NaCN so -
Stony Brook University CHE 129/130
Chapter 7: Electron Configurations and the Periodic Table 297 End-of-Chapter Solutions for Chapter 7 Summary Problem Answer: (a) See diagram below; 2 1: = 2.463 1015 s1, E = 1.632 1018 J; 3 1: = 2.922 1015 s1, E = 1.936 1018 J; 5 2: = 6.903 1014 s1, E = 4 -
Stony Brook University CHE 129/130
336 Chapter 8: Covalent Bonding End-of-Chapter Solutions for Chapter 8 Summary Problem Answer: (a) OH < NH < CH < C=O < CO < CN < CC (b) CN < CO < CC < CH < OH < C=O (c) CC < CH < CO < OH (d) see structure below (e) see structures below (d) see structure -
Stony Brook University CHE 129/130
402 Chapter 9: Molecular Structures End-of-Chapter Solutions for Chapter 9 Summary Problem P a rt 1 Answer: (a) see structure below; tetrahedral, angular, 109.5, sp3 (b) see structure below; octahedral, square planar, 90, sp3d2 (c) see structure below; oc -
Stony Brook University CHE 129/130
450 Chapter 10: Gases and the Atmosphere End-of-Chapter Solutions for Chapter 10 Summary Problem Answer: (a) 154 mm Hg (b) XN =0.777, XO = 0.208, XAr = 0.0093, XCO = 0.0003, XH 2 2 2 2O = 0 .0 0 5 3 (c) 77.7% N2, 20.8% O2, 0.93% Ar, 0.03% CO2, 0.54% H2O; -
Stony Brook University CHE 129/130
496 Chapter 11: Liquids, Solids, and Materials End-of-Chapter Solutions for Chapter 11 Summary Problem P a rt 1 Answer: (a) 190 mm Hg (b) weaker (c) 30 C (d) 32 kJ Strategy and Explanation: Given Figure 11.5, determine the vapor pressure of diethyl ether -
Stony Brook University CHE 129/130
528 Chapter 12: Fuels, Organic Chemicals, and Polymers End-of-Chapter Solutions for Chapter 12 Summary Problem P a rt 1 : Answer: see structures below Strategy and Explanation: Given the formula of an alcohol, determine the products of its reaction with K
7,000,000 study materials • 24/7 tutors • earn better grades