Chem 1311 Study guides, Class notes & Summaries
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CHEM 1311 Exam 1 Questions With Complete Solutions
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Chem 1311 Exam 2 ACC Professor Rahman Questions With Complete Solutions
- Exam (elaborations) • 35 pages • 2023
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Propane (C₃H₈) reacts with oxygen in the air to produce carbon dioxide and water. In a particular experiment, 38.0g of Carbon Dioxide are produced from the reaction 22.05g of propane with excess oxygen. What is the % yield in this reaction? 
 
-94.5 
-66.0 
-86.4 
-38.0 
-57.6 correct answer: 57.6 
 
Gaseous argon has a density of 1.40 g/L at standard conditions. How many argon atoms are in 1.00L of argon gas at standard conditions? 
 
-4.76x10²² 
-6.02x10²³ 
-3.43x10²⁵ 
-1.59...
![Chem 1311 Exam 1 ACC Professor Rahman Questions With Complete Solutions](/docpics/3492364/6510059b35833_3492364_121_171.jpeg)
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Chem 1311 Exam 1 ACC Professor Rahman Questions With Complete Solutions
- Exam (elaborations) • 22 pages • 2023
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Of the following only,_________ is an extensive property. 
 
-Temperature 
-Boiling point 
-Freezing point 
-Density 
-Volume correct answer: Volume 
 
In the following list, only __________ is not an example of a chemical reaction. 
 
-the production of hydrogen gas from water 
-chopping a log into sawdust 
-the tarnishing of a copper penny 
-burning a plastic water bottle 
-charging a cellular phone correct answer: chopping a log into sawdust 
 
In which of the following numbers ar...
Chem 1311 Exam 1 Questions With Complete Solutions
![CHEM 1311 EXAM 1 QUESTIONS WITH COMPLETE SOLUTIONS](/docpics/3491816/650fb5ec0c058_3491816_121_171.jpeg)
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CHEM 1311 EXAM 1 QUESTIONS WITH COMPLETE SOLUTIONS
- Exam (elaborations) • 13 pages • 2023
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The Greeks correct answer: tried to explain chemical changes, proposed four fundamental substances (earth, fire, water, air), first proposed atoms as fundamental particles 
 
The Alchemists correct answer: "pseudoscience"/tried to change a base metal of lead into gold 
 
Robert Boyle correct answer: First "chemist"/quantitative measurements on gases/proposed the concept of elements 
 
Joseph Priestly correct answer: discovered oxygen/carefully studied chemical reactions 
 
Law of Mass Co...
![Chem 1311 Exam 3 ACC Professor Rahman Questions With Complete Solutions](/docpics/3492482/65100e0bbce35_3492482_121_171.jpeg)
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Chem 1311 Exam 3 ACC Professor Rahman Questions With Complete Solutions
- Exam (elaborations) • 26 pages • 2023
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A __________ ΔH corresponds to an __________ process. 
 
-zero, endothermic 
-positive, exothermic 
-negative, endothermic 
-zero, exothermic 
-positive, endothermic correct answer: positive, endothermic 
 
Which one of the following is NOT considered a fossil fuel? 
 
-natural gas 
-hydrogen 
-anthracite coal 
-petroleum 
-crude oil correct answer: hydrogen 
 
Which one of the following statements is FALSE? 
 
-The enthalpy change for a reaction is equal in magnitude, but opposite i...
CHEM 1311 TESTS COMPILATION BUNDLE
![Chem 1311 Exam 5 ACC Professor Rahman Questions With Complete Solutions](/docpics/3492500/65100f37b4197_3492500_121_171.jpeg)
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Chem 1311 Exam 5 ACC Professor Rahman Questions With Complete Solutions
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According to VSEPR theory, if there are 2 electron domains on a central atom, they will be arranged such that the angles between the domains are __________. 
 
-120° 
-180° 
-90° 
-109.5° 
-360° correct answer: 180° 
 
An electron domain consists of __________. 
 
a) a nonbonding pair of electrons 
b) a single bond 
c) a multiple bond 
 
-a only 
-b only 
-c only 
-a, b, and c 
-b and c correct answer: a, b, and c 
 
The O-C-O bond angle in the CO₃²⁻ ion is approximately ______...
![Chem 1311 Exam 4 ACC Professor Rahman Questions With Complete Solutions](/docpics/3492491/65100e87f1ac0_3492491_121_171.jpeg)
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Chem 1311 Exam 4 ACC Professor Rahman Questions With Complete Solutions
- Exam (elaborations) • 24 pages • 2023
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In which set of elements would all members be expected to have very similar chemical properties? 
 
-P, Se, I 
-Br, I, At 
-Ne, Na, Mg 
-Cl, Br, Na 
-Si, As, Te correct answer: Br, I, At 
 
Of the following elements, which have been shown to form compounds? 
 
helium neon argon krypton xenon 
 
-xenon, krypton, and argon 
-xenon only 
-xenon and krypton 
-xenon and argon 
-None of the above can form compounds correct answer: xenon, krypton, and argon 
 
Which of the following correctly re...
![CHEM 1311 CHAPTER 10: CHEMICAL BONDING II: MOLECULAR GEOMENTRY AND HYBRIDIZATION OF ATOMIC ORBITALS](/docpics/3495017/6510dea4407c4_3495017_121_171.jpeg)
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CHEM 1311 CHAPTER 10: CHEMICAL BONDING II: MOLECULAR GEOMENTRY AND HYBRIDIZATION OF ATOMIC ORBITALS
- Exam (elaborations) • 18 pages • 2023
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Chapter 10: Chemical Bonding II: Molecular Geometry and 
Hybridization of Atomic Orbitals 
1. Give the number of lone pairs around the central atom and the molecular geometry of 
CBr4. 
A) 0 lone pairs, square planar D) 1 lone pair, trigonal bipyramidal 
B) 0 lone pairs, tetahedral E) 2 lone pairs, square planar 
C) 1 lone pair, square pyramidal 
Ans: B Category: Medium Section: 10.1 
2. Give the number of lone pairs around the central atom and the molecular geometry of 
SCl2. 
A) 0 lone pairs, ...
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