Use the Henderson-Hasselbalch approximation to calculate the pH of a solution prepared by dissolving in water, to a final volume of 1.00 L, 0.200 mol of nitrous acid, 0.040 mol of sodium nitrite, 0.080 mol of HNO3 and 0.080 mol of Ca(OH)2.

Use the Henderson-Hasselbalch approximation to calculate the pH of a solution prepared by dissolving in water, to a final volume of 1.00 L, 0.200 mol of nitrous acid, 0.040 mol of sodium nitrite, 0.080 mol of HNO3 and 0.080 mol of Ca(OH)2.

Principles of Modern Chemistry

8th Edition

ISBN:9781305079113

Author:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler

Publisher:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler

Chapter16: Solubility And Precipitation Equilibria

Section: Chapter Questions

Problem 70AP

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Step 1: Determination of Unreacted moles of OH- after neutralization of strong acid strong base reaction

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Step 2: Determination of concentrations of weak acid and its conjugate base

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Step 3: Calculation of the pH using the Henderson-Hasselbalch approximation

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