A 232-mL buffer solution is 0.449 M in nitrous acid (HNO2) and 0.322 M in sodium nitrite (NaNO2). Ka(HNO2)=5.6×10-4 Part A: What is the initial pH of this solution? Express your answer using two decimal places. pH = Check Part B: What is the pH after adding 130 mL of 0.100 M HCI to the initial buffer solution? Express your answer using two decimal places. pH Check Part C: What is the pH after adding 129 mL of 0.100 M KOH to the initial buffer solution? Express your answer using two decimal places. pH = Check

A 232-mL buffer solution is 0.449 M in nitrous acid (HNO2) and 0.322 M in sodium nitrite (NaNO2). Ka(HNO2)=5.6×10-4 Part A: What is the initial pH of this solution? Express your answer using two decimal places. pH = Check Part B: What is the pH after adding 130 mL of 0.100 M HCI to the initial buffer solution? Express your answer using two decimal places. pH Check Part C: What is the pH after adding 129 mL of 0.100 M KOH to the initial buffer solution? Express your answer using two decimal places. pH = Check

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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