Part A: You are asked to prepare a buffer solution with pH 5.20. If you start with a solution containing 10.0 mmol acetic acid (CH3COOH, Ka = 1.8×10-5), how many millimoles of sodium acetate (CH3COONa) must be added to the solution?Express your answer to two significant figures. Part B: What volume of 0.200 M sodium acetate would be required to get the number of mmol in Part A? Express your answer to three significant figures.
Part A: You are asked to prepare a buffer solution with pH 5.20. If you start with a solution containing 10.0 mmol acetic acid (CH3COOH, Ka = 1.8×10-5), how many millimoles of sodium acetate (CH3COONa) must be added to the solution?Express your answer to two significant figures. Part B: What volume of 0.200 M sodium acetate would be required to get the number of mmol in Part A? Express your answer to three significant figures.
Chemistry & Chemical Reactivity
9th Edition
ISBN:9781133949640
Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Publisher:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Chapter17: Principles Of Chemical Reactivity: Other Aspects Of Aqueous Equilibria
Section17.2: Controlling Ph: Buffer Solutions
Problem 2RC: 2. If an acetic acid/sodium acetate buffer solution is prepared from 100. mL of 0.10 M acetic acid...
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Part A: You are asked to prepare a buffer solution with pH 5.20. If you start with a solution containing 10.0 mmol acetic acid (CH3COOH, Ka = 1.8×10-5), how many millimoles of sodium acetate (CH3COONa) must be added to the solution?Express your answer to two significant figures. Part B: What volume of 0.200 M sodium acetate would be required to get the number of mmol in Part A? Express your answer to three significant figures.
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