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Chemistry 14 Online
OpenStudy (anonymous):

Calculate the pH if 0.100 M NaOH is added to 1.00 L of a buffer solution that is 0.400 M HCOOH and 0.100 M HCOONa. (Ka for HCOOH = 1.77 x 10-4)

OpenStudy (aaronq):

use the henderson-hasslebach equation

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