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Question
A buffer is composed of 0.400 mol H2PO4- and 0.400 mol HPO42- diluted with water to a volume of 1.00 L. The pH of the buffer is 7.210. How many moles of HCl must be added to decrease the pH to 6.210?
A.0.200 mol
B.0.327 mol
C.0.360 mol
D.0.400 mol
E.3.60 mol
Answer
This answer is hidden. It contains 2 characters.
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Q:
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Q:
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