What is the [H3O+] in a buffer that consists of 0.30 M HCOOH and 0.20 M HCOONa? For HCOOH, Ka = 1.7 * 10¯4
A) 1.1 * 10¯4 M
B) 2.6 *10¯4 M
C) 4.3* 10¯4 M
D) 6.7 *10¯5 M
E) None of these choices is correct.
Correct Answer:
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