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You are titrating 25 mL of 0.25 M Ascorbic Acid solution ith 0.15 M NaOH. Ascorbic...

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Chemistry

You are titrating 25 mL of 0.25 M Ascorbic Acid solution ith0.15 M NaOH. Ascorbic Acid is an organic diprotic acid, H2A, thatis found in many natural materials. Ka1 = 7.94 x 10^-5 and Ka2 =1.62 x 10^-12. What is the a) initial pH, b) at the 1st equivalencepoint, c) the 2nd equivalence point, and d) after 27.5 mL of NaOHhave been added?

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3.8 Ratings (563 Votes)
a initially assume just 1st ionization since 105 vds 1012 is large difference H2A H HA Ka HHAH2A 794105 xx025x x 000442 pH logx log000442 2354 b 1st equivalence point this is speical    See Answer
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