A buffer is prepared by mixing 25 mL of 0.10 M nitrous acid (HNO2) and 25 mL of 0.15 M sodium nitrite (NaNO2). The Ka for nitrous acid is 5.6 x 10-4. a.) What is the pH of the buffer solution? b.) What is the pH change when 5 mL of 0.10 M HCl is added to the solution?
A buffer is prepared by mixing 25 mL of 0.10 M nitrous acid (HNO2) and 25 mL of 0.15 M sodium nitrite (NaNO2). The Ka for nitrous acid is 5.6 x 10-4. a.) What is the pH of the buffer solution? b.) What is the pH change when 5 mL of 0.10 M HCl is added to the solution?
General Chemistry - Standalone book (MindTap Course List)
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Chapter16: Acid-base Equilibria
Section: Chapter Questions
Problem 16.78QP: A buffer is prepared by mixing 525 mL of 0.50 M formic acid, HCHO2, and 475 mL of 0.50 M sodium...
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A buffer is prepared by mixing 25 mL of 0.10 M nitrous acid (HNO2) and 25 mL of 0.15 M sodium nitrite (NaNO2). The Ka for nitrous acid is 5.6 x 10-4.
a.) What is the pH of the buffer solution?
b.) What is the pH change when 5 mL of 0.10 M HCl is added to the solution?
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