Posted by Katie on Tuesday, March 23, 2010 at 10:44pm.
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?
College Chemistry - Katie, Wednesday, March 24, 2010 at 6:13am
Never mind, I figured it out.
College Chemistry - John, Thursday, March 25, 2010 at 2:44pm
what was the anwer?
College Chemistry - Katie, Thursday, March 25, 2010 at 4:37pm
pH=pKa + log(base/acid)
3.95=3.465 + log(base/acid)
College Chemistry - John, Thursday, March 25, 2010 at 6:07pm
College Chemistry - John, Thursday, March 25, 2010 at 6:10pm
wait what? that's not right the -log(.494) = 2.02
College Chemistry - evelyn, Friday, April 15, 2011 at 10:08pm
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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