Conjugate acid base Study guides, Class notes & Summaries
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Chem Exam 3 Things to Know 100% Verified Review Solution 2024/2025
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Chem Exam 3 Things to Know 100% Verified Review Solution 2024/2025 
Before starting a titration equation, what do we need to find? - ANS-Ka/Kb (given the other), volume, 
concentration of acid and base, initial mols of weak acid/base 
at the starting point of a titration, how do you find pH? - ANS-use a RICE table to find K expression 
equation, plug initial (not titrant) concentration into table and when you have K expression, solve for X. 
take -log of x for pH 
at the buffer region of a ti...
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BCTB Chapter 2 Questions And Answers Graded A+
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"Proton hopping" essentially means that: 
A) an individual proton "jumps" from one electronegative group to the next. 
B) a free proton moves from one hydroxyl group of ionized water to the next. 
C) several protons move between hydrogen bonded water molecules causing the net movement 
of a photon over a long distance in a short time. 
D) individual protons are freer to move among and between water molecules in solution. 
E) hydronium ions are freer to move among and between water molecules ...
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BCH 361 CH 2 Questions Study Questions with 100% Correct Verified Solutions| Latest Update
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A solution of a weak acid contains 5 mM of the conjugate acid (HA), 2.5 mM of the conjugate base (A—), 
and 2.5 mM of H+. What is the Ka for this ionization? 
a) 5 mM 
b) 2.5 mM 
c) 1.25 mM 
d) 0.5 mM 
e) None of the above - Answer c
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CEM 142 EXAM 2 LATEST UPDATE GRADED A+
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CEM 142 EXAM 2 LATEST UPDATE 
 
GRADED A+ 
 
**ACID = ELECTRON PAIR ACCEPTOR 
 
Acid= electrophile 
 
**BASE = ELECTRON PAIR DONOR 
base= nucleophile 
 
strong acid fully ionizes in solution/completely dissociates 
 
weak acid does not fully ionize or dissociate into ions 
 
** negatively charged ion ---> wants to loose 1 electron 
 
can tell if a solution is ionized when... a fully ionized solution will conduct more electricity 
than a non fully ionized solution 
 
strength of acid depend...
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Biochemistry and Metabolism Exam 1 Questions with Complete Solutions
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Biochemistry and Metabolism Exam 1 Questions with Complete Solutions. 
What are proteins made from? -Answer- amino acids 
What are some functions of proteins? (5) -Answer- structural, enzymatic, transport, 
defense, contractile 
Which isomer of carbohydrates is used in animals? -Answer- D 
What are DNA and RNA made of? -Answer- nucleic acids 
All lipids are formed from... -Answer- acetyl Co-A 
Complex lipids -Answer- phospholipids and glycolipids 
Simple lipids -Answer- triglycerides 
functions ...
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MCB: ALL EXAM QUESTIONS AND ANSWERS
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Many types of non-covalent interactions are electrostatic in nature; one notable exception is 
A) Hydrogen bond 
C) Ionic interaction 
B) Van der Waals interaction 
D) Hydrophobic interaction - Answer-D 
 
2. Maintaining correct pH is very important for living systems. Which of the following molecules is 
important for pH control in living systems? 
A) Proteins, especially those with high content of histidine residues 
B) Dihydrogen phosphate and hydrogen phosphate 
C) Bicarbonate 
D) All of t...
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ACS Biochemistry Practice Final FGCU
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ACS Biochemistry Practice Final FGCU 
 
1. A weak acid, HA, has a pKa of 4.11. 
a) At pH 7.11, what will the ratio of conjugate base to acid be? (Henderson-Hasselbach 
equation: pH=pKa + log [A-]/[HA]) 
b) Based on answer to "a," is there more HA or A- at that pH? 
c) At pH 2.11, what will the ratio of conjugate base to acid be? 
d) Based on answer to "c," is there more HA or A- at that pH? 
e) At pH 4.11, what will the ratio of conjugate base to acid be? 
f) Fill in the blank: if pH is grea...
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Chemistry Exam #3 question n answers rated A+ 2023/2024
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Chemistry Exam #3Identify each substance as an acid or a base and write a chemical equation showing how it is an acid or a base according to the Arrhenius definition. 
a.) HNO3 (aq) 
b.) NH4^+ (aq) 
c.) KOH (aq) 
d.) HC2H3O2 (aq) - correct answer a.) acid, HNO3 (aq) ----> H^+ (aq) + NO3^- (aq) 
b.) acid, NH4^+ (aq) <----> H^+ (aq) + NH3 (aq) 
c.) base, KOH (aq) ----> K^+ (aq) + OH^- (aq) 
d.) acid, HC2H3O2 (aq) <----> H^+ (aq) + C2H3O2^- 
 
In each reaction, identify the Brons...
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ACS Biochemistry Practice Final, FGCU, Beharry, Coticone | Questions with 100% Correct Answers | Verified | Latest Update 2024
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1. A weak acid, HA, has a pKa of 4.11. 
a) At pH 7.11, what will the ratio of conjugate base to acid be? (Henderson-Hasselbach equation: 
pH=pKa + log [A-]/[HA]) 
b) Based on answer to "a," is there more HA or A- at that pH? 
c) At pH 2.11, what will the ratio of conjugate base to acid be? 
d) Based on answer to "c," is there more HA or A- at that pH? 
e) At pH 4.11, what will the ratio of conjugate base to acid be? 
f) Fill in the blank: if pH is greater than the pKa of a weak acid, there w...
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TBR Chemistry Ch. 5 Exam Questions & Answers 2024
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TBR Chemistry Ch. 5 Exam Questions & Answers 2024 
 
 
Buffer - ANSWER-a solution where pH remains relatively constant after the addition of either strong acid or strong base. 
 
Can be made by combining a conjugate pair in roughly equal mole portions (must be weak acid/base pair). The addition of strong base or strong acid shifts teh ratio of weak acid (HA) to its conjugate base (A⁻), but the pH does not change, if the A⁻:HA ratio is close to 1.0 
 
Can also be made by partially titrating a...
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