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Solving for pH of a Buffer

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(a) What is the pH of a buffer prepared by combining 25mL of 0.1M nitrous acid with 25mL of 0.1M sodium nitrite?

(b) Using an ice chart, calculate the pH of a buffer made by combining 5mL of 0.135M benzoic acid and 25mL of 0.15M sodium benzoate.

(c) Using the Hendersen-Hasselbach equation, solve part B. How do your answers compare?

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This solution provides step-by-step equations for solving for pH.

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Q#1(a) What is the PH of a buffer prepared by combining 25mL of 0.1M nitrous acid with 25mL of 0.1M sodium nitrite?

Solution:

For nitrous acid:

For nitrite:

Now, we can use the Henderson-Hasselbach equation for ...

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