Asked by Steve



what volume of 0.120 M NaOH must be added to 100 ml of 0.100 M NaHC2O4 to reach ph of 4.70?

The answer is 60 ml but I don't know how to find it.
Can you please show me the steps and how to do it please
Answered by DrBob222
Do you have k1 and k2 for H2C2O4? We can't get the same answer unless we use the same values for the two constants.
Answered by Steve
H2C2O4 Ka1 = 5.9 x 10-2

HC2O4- Ka2 = 5.1 x 10-5
Answered by DrBob222
I posted the answer above. Let me know if you can't find it.
Answered by K
Clown Bot just incase he got a hole in one
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