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Given that carbonic acid, H2CO3, has a pKa1 = 6.37 and a pKa2 = 10.33, answer...

Given that carbonic acid, H2CO3, has a pKa1 = 6.37 and a pKa2 = 10.33, answer the following.

(a) If you wanted to make a pH 7 buffer solution starting with NaHCO3(aq), would you add 0.10 M HCl or 0.10 M NaOH?

answer: 0.10 M HCl


(b) If you began with 6.5 mL of 0.45 M NaHCO3, how many mL of your choice from (a) would you need to add to get a pH 7 buffer?
mL

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