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  3. a) from the list below, pick an acid, along with i

a) From the list below, pick an acid, along with its conjugate base, that can be...

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Chemistry

a) From the list below, pick an acid, along with its conjugatebase, that can be used to make a pH 7.40 buffer.

H3PO4 Ka = 6.9 x 10-3 H2PO4- Ka = 6.4 x 10-8 HPO42- Ka = 4.8 x10-13

b) If you have 0.100 M solutions of the acid and the conjugatebase in the system that you picked and there was 20.0 mL of thebase, how many mL of the acid would you need to make this buffer ofpH 7.40?

Answer & Explanation Solved by verified expert
3.8 Ratings (323 Votes)
a H2CO3 is an acid    See Answer
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