Someone asked about the pH range for a good buffer (part of #5 on last year's exam). To be able to make a good buffer, the pH of the buffer should be within 1 unit of the pKa of the weak acid component of the buffer. If the pKa of the weak acid is 5.62, then you can make an effective buffer at any pH between 4.62 and 6.62.
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I've been checking all week for a MC. The last one I have posted is Acids and Bases I. Should there be another one that I'm not seeing?
ReplyDeleteNope, I got tied up with other things and forgot to post a new one. Oops.
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