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October 22, 2014

Homework Help: science(chem)

Posted by ~christina~ on Sunday, September 21, 2008 at 11:28pm.

The pKa of HEPES is 7.55 at 20C and it's MW is 238.31. Calculate the amounts of HEPES in grams and of 1.0M NaOH in ml that would be needed to make 300ml of 0.2M HEPES buffer at 7.2.

I'm not sure how to go about doing this problem.

Help please.

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