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Topic: How many grams HCl should be added to buffer to change 0.07 pH units?  (Read 5014 times)

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Offline help1

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A buffer is prepared by mixing 50 mL of 0.050 M sodium bicarbonate and 10.7 mL of 0.10 M NaOH. (Ka = 4.7 x 10^-11)

How many grams of HCl must be added to 25 mL of the buffer to change the pH by 0.07 units?

Thanks! I have been trying to manipulate the henderson hasselbach equation to get the answer for an hour now, and I can't get it, please *delete me*

Offline Borek

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Re: How many grams HCl should be added to buffer to change 0.07 pH units?
« Reply #1 on: April 22, 2010, 03:12:13 AM »
Start with pH BEFORE NaOH is added - that should be easy.

What happens when you add NaOH?
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