Consider 1.0 L of a solution which is 0.60 M HF and 0.75 M NaF. (Ka for HF = 7.2×10-4). Part 1 Calculate the pH of this solution. pH =  Part 2 Calculate the pH after 0.10 mol of HCl has been added to the original buffer solution. Assume no volume change on addition of HCl. pH =  Part 3 Calculate the pH after 0.20 mol of NaOH has been added to the original buffer solution. Assume no volume change on addition of NaOH. pH =

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Chapter1: Chemical Foundations
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Consider 1.0 L of a solution which is 0.60 M HF and 0.75 M NaF.
(Ka for HF = 7.2×10-4).

Part 1
Calculate the pH of this solution.

pH = 

Part 2
Calculate the pH after 0.10 mol of HCl has been added to the original buffer solution. Assume no volume change on addition of HCl.

pH = 

Part 3
Calculate the pH after 0.20 mol of NaOH has been added to the original buffer solution. Assume no volume change on addition of NaOH.

pH = 

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