Q1. i) Draw the 3D structure of the molecules below ii) Give the bond angle for each molecule iii) Name the 3D structure CH4, C2H4, C2H2, NH3

Biochemistry
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ISBN:9781319114671
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Chapter1: Biochemistry: An Evolving Science
Section: Chapter Questions
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Q1. i) Draw the 3D structure of the molecules below
ii) Give the bond angle for each molecule
uestions
ase write the n
n and main fur
ide an examp
iii) Name the 3D structure
CH4, C2H4, C2H2, NH3
e types.
t kind of chem
Q2. What is the ratio of [A- ]/[HA] for a weak acid (pKa = 6.5) at pH = 8?
t denaturatic
Q3. What is the ratio of salt to acid ration when Aspirin (pKa 3.4) dissolves (1) the
blood (pH =7.4) and (b) the stomach (pH = 1.4), respectively?
Q4. Please calculate the ratio of CH3COOH and CH3COO- one needs to prepare a
solution with pH 6 (pKa of CH3COOH = 4.76).
Q5. When 0.08 moles of NaOH into 500 ml of 0.6 M buffer system at pH 6.6, the ratic
of [Salt]/[Acid] becomes 0.1 (adding NaOH does not change volume). What is the pK:
of the buffer system?
Transcribed Image Text:Q1. i) Draw the 3D structure of the molecules below ii) Give the bond angle for each molecule uestions ase write the n n and main fur ide an examp iii) Name the 3D structure CH4, C2H4, C2H2, NH3 e types. t kind of chem Q2. What is the ratio of [A- ]/[HA] for a weak acid (pKa = 6.5) at pH = 8? t denaturatic Q3. What is the ratio of salt to acid ration when Aspirin (pKa 3.4) dissolves (1) the blood (pH =7.4) and (b) the stomach (pH = 1.4), respectively? Q4. Please calculate the ratio of CH3COOH and CH3COO- one needs to prepare a solution with pH 6 (pKa of CH3COOH = 4.76). Q5. When 0.08 moles of NaOH into 500 ml of 0.6 M buffer system at pH 6.6, the ratic of [Salt]/[Acid] becomes 0.1 (adding NaOH does not change volume). What is the pK: of the buffer system?
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