Consider a buffer solution of acetate. The volume is 500 ml, the concentration is 200 mM, and the pH is 5.0. a. How many total moles of acetate plus acetic acid are present in the solution? Express answer as x.y with one digit before and one after the decimal place. b. What is the ratio of acetate ions (Ac-) to acetic acid ions (HAc) in the buffer solution (pH 5.0) if the pka is 4.76? Express the answer as x.yz with one digit before and two after the decimal place. c. How many moles of acetate are present in the solution? Express your answer to one decimal place. d. How many moles of acetic acid are present in the solution? Express your answer to one decimal place.
Consider a buffer solution of acetate. The volume is 500 ml, the concentration is 200 mM, and the pH is 5.0. a. How many total moles of acetate plus acetic acid are present in the solution? Express answer as x.y with one digit before and one after the decimal place. b. What is the ratio of acetate ions (Ac-) to acetic acid ions (HAc) in the buffer solution (pH 5.0) if the pka is 4.76? Express the answer as x.yz with one digit before and two after the decimal place. c. How many moles of acetate are present in the solution? Express your answer to one decimal place. d. How many moles of acetic acid are present in the solution? Express your answer to one decimal place.
Chapter10: Reconstitution Of Powdered Drugs
Section: Chapter Questions
Problem 5.3P
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Transcribed Image Text:Consider a buffer solution of acetate. The volume is 500 ml, the concentration is 200 mM,
and the pH is 5.0.
a. How many total moles of acetate plus acetic acid are present in the solution? Express
answer as x.y with one digit before and one after the decimal place.
b. What is the ratio of acetate ions (Ac-) to acetic acid ions (HAc) in the buffer solution (pH
5.0) if the pka is 4.76? Express the answer as x.yz with one digit before and two after the
decimal place.
c. How many moles of acetate are present in the solution? Express your answer to one
decimal place.
d. How many moles of acetic acid are present in the solution? Express your answer to one
decimal place.
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