Polyprotic - Study guides, Class notes & Summaries
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Chem 104 Exam Questions And Answers
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Chem 104 Exam Questions And Answers 
Consider the following questions about polyprotic acids and determine if each statement is true or false. - ANS false: For most polyprotic acids, each proton dissociation can not be looked at separately 
true: For most polyprotic acids Ka1 largely determines the pH of the solution 
false: for polyprotic acids Ka1 is typically much smaller than Ka2 
 
Which of the following statements about the acid/base properties of salts are true? Which are false? - ...
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MCAT Biochemistry Latest Updated 2024 With Complete Solutions
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MCAT Biochemistry Latest Updated 2024 With Complete Solutions 
 
what kind of acids are amino acids? - weak polyprotic acids 
- amphoteric 
- acidic pH: fully protonated 
- basic pH: fully protonated 
- neutral pH: zwitterion 
Explain a peptide bond formation - condensation (dehydration rxn) 
- nucleophilic amino group attacks electrophilic carbonyl group. 
- peptide bonds broken by hydrolysis 
structural proteins - collagen, elastin, keratin, actin, tubulin 
motor proteins - capable of force ...
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CIH: Acids and Bases Questions and Answers Rated A+
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CIH: Acids and Bases Questions and Answers Rated A+ 
inorganic acids 
contains hydrogen and something nonmetallic 
ex: HCl, H₂SO₃, H₃PO₄ 
 
 
 
organic acids 
contain the carboxyl group 
 
 
 
COOH 
What is the carboxyl group? 
 
 
 
formic acid; HCOOH 
What is the simplest organic acid? What is its formula? 
- it is naturally found in ant and bee venom 
 
 
 
acetic acid 
What acid is: CH₃COOH? 
 
 
 
lactic acid 
produced in your body when it goes through strenuous exercise 
 
 
 
la...
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Test Bank for Chemistry: The Molecular Nature of Matter, 8th Edition by Jespersen
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Test Bank for Chemistry: The Molecular Nature of Matter, 8th Edition 8e by Neil D. Jespersen, Alison Hyslop. Full Chapters test bank are included with answers - Chapter 1 to 22 included 
 
0 A Very Brief History of Chemistry 1 
 
0.1 Chemistry’s Important Concepts 2 
 
0.2 Supernovas and the Elements 3 
 
0.3 Elements and the Earth 5 
 
0.4 Dalton’s Atomic Theory 7 
 
0.5 Internal Structure of the Atom 8 
 
Tools for Problem Solving 20 
 
Review Questions and Problems 21 
 
1 Scientific Meas...
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CHEM 210 Quiz 1 with 100% correct answers
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What are the Bronsted-Lowry definitions of acid and base? 
Acids donate H+ and Bases accept H+ (BAAD) 
 
 
 
What is the difference between a strong acid and a weak acid? Give examples of each. 
Strong acids completely dissociate into anion and H+. Weak acids do not dissociate completely into anion and H+, they form an equilibrium system and reform acid and anion and H+ continuously. 
 
Strong acid ex. HCl and H2SO4 
Weak acid ex. H3PO4 and HC2H3O2 
 
 
 
What is the difference between a strong ...
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Acid and Bases + Buffer questions with complete solutions
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Acid and Bases + Buffer 
buffer capacity - correct answer a measure of the effectiveness of a buffer solution to resist a change in pH when either a strong acid or strong base is added 
 
buffer capacity is greatest when: - correct answer - there is a high concentration of the weak acid and its conjugate base 
- the concentrations of the acid and its conjugate base are equal. 
 
Properties of acids and bases - correct answer Acids- 
litmus red 
Sour (vinegar) 
Frequently burns nose 
tends to b...
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Biochemistry 100% complete Question and Answers 2024 Final Exam
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Biochemistry 100% complete Question and Answers 2024 Final 
Exam 
enzyme regulation 
1. regulated at allosteric site 
2. regulated by modifications like phosphorylation 
on vs. off states 
negative feedback- product inhibits enzyme 
positive feedback- product activates enzyme 
oxytocin is example of positive feedback, needs external regulator to eventually stop process 
oxidation/reduction 
loss/gain of hydrogen atoms, gain/loss of charge 
Bronsted-Lowry acid/base 
proton donor/acceptor 
Lewis ...
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Chemistry II ACS Exam 91 Questions with Verified Answers,100% CORRECT
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Chemistry II ACS Exam 91 Questions with Verified Answers 
 
Phase - CORRECT ANSWER a physically distinct and homogenous part of a system 
 
intermolecular forces - CORRECT ANSWER the attractive and repulsive forces among the particles-molecules, atoms or ions in a sample of matter 
 
heat of vaporization - CORRECT ANSWER the enthalpy change occurring when 1 mol of a liquid substance vaporizes 
 
heat of fusion - CORRECT ANSWER the enthalpy change occurring when 1 mol of a solid melts 
 
heat of ...
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Chem 104 exam QUESTIONS & ANSWERS 2023 ( A+ GRADED 100% VERIFIED)
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Chem 104 exam QUESTIONS & ANSWERS 2023 ( A+ GRADED 100% VERIFIED)
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Complete study guide for CHEM 1212 Exam 3 Questions with solutions 100%
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Complete study guide for CHEM 1212 
Exam 3 Questions with solutions 100% 
Relationship between Q and K when Delta G = 0 - CORRECT ANSWER-Q = K 
Relationship between Q and K when Delta G < 0 (negative) - CORRECT ANSWER-K > 
Q 
Relationship between Q and K when Delta G > 0 (positive) - CORRECT ANSWER-K < 
Q 
When Q = K, the reaction is - CORRECT ANSWER-is in equilibrium 
When Q < K - CORRECT ANSWER-products are favored, shift right 
When Q > K - CORRECT ANSWER-reactants are fa...
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