State a technician in a large pharmaceutical research firm

Reference no: EM13172934

A. As a technician in a large pharmaceutical research firm, you need to produce 350.mL of 1.00 M potassium phosphate buffer solution of pH = 6.87. The pKa of H2PO4- is 7.21.

You have the following supplies: 2.00 L of 1.00 M KH2PO4 stock solution, 1.50 L of 1.00 M K2HPO4 stock solution, and a carboy of pure distilled H2O .

How much 1.00 M KH2PO4 will you need to make this solution?

Express your answer to three significant digits with the appropriate units

Reference no: EM13172934

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