Henderson hasselbach - Study guides, Class notes & Summaries
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ACS Biochemistry First Semester (Questions with 100% correct answers)
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Buffer Order and Henderson Hasselbach correct answers Water, Buffer, Salt, Base 
pH = pKa + log(A/HA) 
pKa decrease as temp increase so pH decrease 
 
Ramachandran plots correct answers Φ = N-R 
ψ = C-R 
optimal angle to prevent steric hinderance 
 
Protein structure of a helix, B sheet, reverse turn correct answers a: LEMARKHQ 
B: VICYFTW 
RT: PSDNG 
 
how many amino acids in alpha turn helix correct answers 3.6 
 
Super secondary structure correct answers helix turn helix 
 
parallel vs. ant...
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ACS Biochemistry First Semester Exam Study Questions and Answers 2024
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Buffer Order and Henderson Hasselbach - Water, Buffer, Salt, Base 
pH = pKa + log(A/HA) 
pKa decrease as temp increase so pH decrease 
 
Ramachandran plots - Φ = N-R 
ψ = C-R 
optimal angle to prevent steric hinderance 
 
Protein structure of a helix, B sheet, reverse turn - a: LEMARKHQ 
B: VICYFTW 
RT: PSDNG 
 
how many amino acids in alpha turn helix - 3.6 
 
Super secondary structure - helix turn helix 
 
parallel vs. antiparallel - parallel wedges face same way 
antiparallel face opposite ...
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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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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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ACS Biochemistry First Semester Complete Solution Rated A 2024
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Buffer Order and Henderson Hasselbach - Water, Buffer, Salt, Base 
pH = pKa + log(A/HA) 
pKa decrease as temp increase so pH decrease 
Ramachandran plots - Φ = N-R 
ψ = C-R 
optimal angle to prevent steric hinderance 
Protein structure of a helix, B sheet, reverse turn - a: LEMARKHQ 
B: VICYFTW 
RT: PSDNG 
how many amino acids in alpha turn helix - 3.6 
Super secondary structure - helix turn helix 
parallel vs. antiparallel - parallel wedges face same way 
antiparallel face opposit...
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ACS BIOCHEMISTRY EXAM QUESTIONS AND ANSWERS ALL CORRECT
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ACS BIOCHEMISTRY EXAM QUESTIONS AND ANSWERS ALL CORRECT 
 
Henderson-Hasselbach Equation - ANSWER pH = pKa + log ([A-] / [HA]) 
 
FMOC Chemical Synthesis - ANSWER Used in synthesis of a growing amino acid chain to a polystyrene bead. FMOC is used as a protecting group on the N-terminus. 
 
Salting Out (Purification) - ANSWER Changes soluble protein to solid precipitate. Protein precipitates when the charges on the protein match the charges in the solution. 
 
Size-Exc...
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BMB 200 Exam 1 || Questions and 100% Accurate Answers.
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how is a micelle structured? correct answers hydrophobic parts stick together on the inside, while the hydrophilic parts face the outside 
 
What is the leading cause of childhood blindness? correct answers Vitamin A deficiency 
 
Patients of what disease do not absorb Vitamin A? correct answers Cancer and Chron's disease patients 
 
Van der Waals reaction is... correct answers A temporary dipole moment between non polar molecules 
 
Example of a hydrophobic interaction correct answers when sou...
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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 1020 Lab Final Questions With Complete Solutions
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Acid + Base -> correct answer: Salt + Water 
 
Molarity (M) correct answer: Number of moles per liter 
 
Titration of Vinegar correct answer: First drops will cause brief appearance of pink that quickly fades 
Near endpoint, more of the flask will turn pink but still fade after a few seconds 
Endpoint 
When entire flask turns pink and stays that way without adding another drop 
 
Buffer correct answer: - Solution that resists a change in pH when a small 
amount of acid or base is added 
 ...
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ACS Biochemistry Practice Final FGCU | 2023 | Questions with 100% Correct Answers | Updated & Verified
- Exam (elaborations) • 14 pages • 2023
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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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