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ddatuf

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Lepton

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  1. Hey thanks guys. I went to a teacher and he helped me get the answer. I really appreciate the help though.
  2. I actually tried the problem out recently and got an answer. My answer was different from the correct one by 2 tenths of a decimal place. Is that an incorrect? I know that a difference in pH of 5 and 6 is big, but what about the little differences like that?
  3. I am having trouble doing these two problems. They are about finding the pH in solutions. Here they are: a) 1 liter of 0.1M acetic acid (pKa=4.7) to which has been added 75 ml of 1M NaOH. b) 1.0 liter of 0.1M glycine hydrochloride (pKa values are 2.3 and 9.7) to which has been added 100 ml of 1M NaOH. The pH must be determined for these problems. Any help would be much appreciated. Thank you.
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