Asked by Katie

Calculate the ratio of NaF to HF required to create a buffer with pH=3.95.

Also, can you please explain in a nutshell the whole concept of buffers?

Thanks!
Answered by Katie
Never mind, I figured it out.
Answered by John
what was the anwer?
Answered by Katie
pH=pKa + log(base/acid)
3.95=3.465 + log(base/acid)
.494=log(base/acid)
10^.494
3.1
Answered by John
thanks!!
Answered by John
wait what? that's not right the -log(.494) = 2.02
Answered by evelyn
john the answer is right 3.1; u have to key on ur calc 2nd key then log key then the (^)key :) to get that answer.
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