Calculate the molarity of the acid (HA) and the conjugate base (A- ) . For acetate, use grams-to-mol conversion and divide it by the total volume. For (aceitic acid), use M1V1=M2V2. Consider the total volume of your buffer (50 mL + 10 mL). a) [A-] = b) [HA] = I am not sure how to answer this or if it is related to this info that we were given at the top of the page: "A buffer is made by mixing 2.0 g of sodium acetate (NaA: 1 mol / 82 g) and 10 mL of 3.0 M acetic acid. Then 50 mL of water is added to the mixture. Find the pH of this buffer!"

Calculate the molarity of the acid (HA) and the conjugate base (A- ) . For acetate, use grams-to-mol conversion and divide it by the total volume. For (aceitic acid), use M1V1=M2V2. Consider the total volume of your buffer (50 mL + 10 mL). a) [A-] = b) [HA] = I am not sure how to answer this or if it is related to this info that we were given at the top of the page: "A buffer is made by mixing 2.0 g of sodium acetate (NaA: 1 mol / 82 g) and 10 mL of 3.0 M acetic acid. Then 50 mL of water is added to the mixture. Find the pH of this buffer!"

Chemistry: The Molecular Science

5th Edition

ISBN:9781285199047

Author:John W. Moore, Conrad L. Stanitski

Publisher:John W. Moore, Conrad L. Stanitski

Chapter15: Additional Aqueous Equilibria

Section: Chapter Questions

Problem 100QRT

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Sir Bong later found out that he only has a 10 mM stock solution of benzoic acid and a 1M stock solution of NaOH available on his laboratory. 1. What volume of 10 mM benzoic acid solution (in milliliters) is needed to prepare the said buffer? Report your answer up to 2 decimal places. Show your complete solution. 2. What volume of 1M NaOH solution (in milliliters) is needed to prepare the said buffer? Report your answer up to 2 decimal places. Show your complete solution.
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