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  3. 1.) determine the ph change when 0.117 mol koh is

1.) Determine the pH change when 0.117 mol KOH is added to 1.00 L of a buffer...

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Chemistry

1.)Determine the pH change when 0.117 mol KOH is added to 1.00 L of abuffer solution that is 0.453 M in HNO2 and 0.339 M in NO2^-.

pH after addition - pH before addition = pH change =?????

2.) a buffer solution contains 0.495 M KHSO3 and 0.234 MNa2SO3. Determine the pH change when 0.119 mol KOH is added to 1.00L of the buffer.
pH after addition - pH before addition = pH change =????

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