Limiting reactants Study guides, Class notes & Summaries
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Test Bank for Chemical Principles 8th Edition by Steven S. Zumdahl
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Chapter 03 - Stoichiometry 
1. Bromine exists naturally as a mixture of bromine-79 and bromine-81 isotopes. An atom of bromine-79 contains 
a. 79 protons, 79 electrons, and 35 neutrons. 
b. 35 protons, 44 neutrons, and 35 electrons. 
c. 44 protons, 44 electrons, and 35 neutrons. 
d. 34 protons and 35 electrons only. 
e. 35 protons, 79 neutrons, and 35 electrons. 
ANSWER: POINTS: DIFFICULTY: TOPICS: KEYWORDS: 
b 
1 
easy 
3.1 
atomic theory of matter | early atomic theory | general chemistry | is...
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CHE 233 Final UKY Questions With Complete Solutions
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Unsaturated fatty acids - have one or more C=C bonds 
 
Saturated fatty acids - Have no C=C bonds 
 
What are the ways that biodiesel is produced commercially? Which method is the predominant method? - 1) Base-catalyzed transesterification of the oil with methanol and one used in lab. 
2)Acid-catalyzed esterification of the oil with methanol 3) Saponification of the oil to yield free fatty acids, followed by acid catalyzed esterification. 
 
Match the products and catalyst for the following tran...
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Chem 103 Exam 2 2023 with 100% correct answers
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stoichiometric ratio correct answersthe ratio of the number of moles of one reactant or product to another reactant or product or product 
 
limiting reactants correct answersone or more reactants are completely consumed in the chemical reaction 
 
theoretical yield correct answersthe amount of product predicted from stoichiometry taking into account limiting reagents 
 
percent yield correct answers-relates the actual yield to the theoretical yield 
- (actual yield / theoretical) x 100 
 
conc...
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Biology 3221A Biochemistry Final Exam Q&A- Rush University
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Biology 3221A Biochemistry Final Exam Q&A- Rush University 
Which of the following single-base DNA gene coding changes is least 
likely to significantly affect the function of resulting protein? (Harper pages 
361-363) 
A. Missence mutation resulting to histidine-to-glutamic acid change 
B. Silent mutations in the third codon base 
C. Frameshift mutation 
D. Nonsense mutation 
2. Which of the following is a property of enhancer elements? (Harper pages 
384-385) 
A. They do not work located downs...
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Test Bank For Chemistry The Molecular Science 5th Edition by John W. Moore
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Chapter 3: Chemical Reactions 
1. Which of the following cannot be determined from a balanced chemical equation? 
a. b. c. d. e. 
ANSWER: POINTS: TOPICS: OTHER: 
The number of molecules of reactants and products. The number of atoms of each element reacting. 
The number of moles of reactants and products. The relative mass of each reactant and product. Whether the reaction will proceed as written. 
e 
1 
3.1 Chemical Equations Comprehension 
2. In the reaction given below, if 12 moles of aluminu...
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MCAT AAMC FL 1EXAM QUESTIONS AND ANSWERS
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MCAT AAMC FL 1EXAM QUESTIONS AND ANSWERS 
What was the principal factor determining the migration of individual components in a sample 
when performing chromatography? -Answer-the relative amount of hydrogen bonding to the 
stationary phase 
Rf value -Answer-Distance travelled by substance / distance travelled by solvent 
stereospecific reaction -Answer-a special type of stereoselective reaction in which the 
stereochemistry of the product is dependent on the stereochemistry of the starting mate...
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Module 2: Introduction To Quantitative Chemistry SOLUTION 2024 EDITION GUARANTEED GRADE A+
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chemical reaction 
the process by which one or more substances change to produce one or more different substances 
Stoichiometry 
The calculation of quantities in chemical reactions 
QQR method 
(Quantity, quantity, ratio) is the link between maths and science. The ratio of calculation/measurement = the 1st quantity DIVIDED BY the 2nd quantity. 
Density 
mass/volume 
quantitiative 
results reported in NUMBERS 
data can be counted and analyzed by descriptive or inferential statistics 
Qualititive...
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CHEMISTRY QUESTIONS AND CORRECT ANSWERS[2024)
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CHEMISTRY QUESTIONS AND CORRECT ANSWERS[2024)20Practice 1-1 (HW)	Stoichiometry and Limiting Reactants 
Show your work for every calculation. Round your answer to the correct number of significant digits needed. 
1.	a. A sample of nicotine containing 0.35 moles has a mass of 56 grams. What is the molar mass of nicotine? 
160 g/mol 
b. Nicotine is 74.1% carbon, 8.6% hydrogen, and 17.3% nitrogen by mass. What are its empirical and molecular formulas? 
 
EF = C5H7N MF= C10H14N22.	Butane lighters wor...
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Chemistry Final Exam with 100% Correct Answers | Verified | Updated
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Chemistry Final Exam with 100% Correct 
Answers | Verified | Updated 
First order rate equation - answerln(Ao/A) = kt 
What is a reaction intermediate? - answerIt's always the product in the slow reaction that is 
used as a reactant in one of the fast reactions. Rate limiting step. 
The first order integrated rate law: Determining the concentration of a reactant at a given time 
using initial conc and rate by temperature. - answerln[A]t = e^(-kt + ln[A]₀) 
Calculating half-life - answert 1/2 ...
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CHEM 162 Experiment 5: Spectrochemical Series Complete Solution 2023
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CHEM 162 Experiment 5: Spectrochemical Series Complete Solution 2023. Part A: Preparation of cis-Bis(glycinato)copper(II) monohydrate, Cu(gly)2 
·H2O 
mass CuSO4 
·5H2O g 
mass NH2CH2CO2H (glycine) g 
molar mass CuSO4 
·5H2O g/mole 
moles CuSO4 
·5H2O moles 
molar mass NH2CH2CO2H (glycine) g/mole 
moles NH2CH2CO2H (glycine) moles 
limiting reagent is 
molar mass Cu(gly)2 
·H2O g/mole 
(Note for molar mass: each glycine loses the acidic proton in order to be a bidentate ligand) 
mass Cu(gly)...
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