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Buffer Buffoon
A student creates a 1M citrate (C3H5O(COO)33-) buffer solution at pH 5.0. He then dilutes the solution to 200 mM, and adds it to his experiment. What is the pH of the 200 mM buffer solution?
A. Between pH 5 and pH 7.
B. Greater than pH 7.
C. Less than pH 5.
D. The pH will remain close to 5.
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