a)What is the pH of a mixture of 0.042 M NaH2PO4 and 0.058 M Na2HPO4? (b) If 1.0 mL of 10.0 M NaOH is added to a liter of the buffer prepared in (a),how much will the pH change? (c) If 1.0 mL of 10.0 M NaOH is added to a liter of pure water at pH 7.0, whatis the final pH? Compare this with the answer in (b).

Chemistry: Principles and Reactions
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Chapter14: Equilibria In Acid-base Solutions
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a)What is the pH of a mixture of 0.042 M NaH2PO4 and 0.058 M Na2HPO4?

(b) If 1.0 mL of 10.0 M NaOH is added to a liter of the buffer prepared in (a),
how much will the pH change?

(c) If 1.0 mL of 10.0 M NaOH is added to a liter of pure water at pH 7.0, what
is the final pH? Compare this with the answer in (b).

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