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If you began with 5.5 mL of 0.20 M NaHCO3, how many mL of 0.10M HCl...

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Chemistry

If you began with 5.5 mL of 0.20 M NaHCO3, how manymL of 0.10M HCl would you need to add to get a pH 7 buffer? Giventhat carbonic acid, H2CO3, has apKa1 = 6.37 and a pKa2 = 10.33

Answer & Explanation Solved by verified expert
4.4 Ratings (794 Votes)
given NaHC03 and HCl the reaction is NaHC03 HCl NaCl H2C03 now NaHC03 and H2C03 form a buffer we know that for a buffer pH pKa log conjugate base salt so pH pKa1 log    See Answer
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