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As a technician in a large pharmaceutical research firm, you need to produce 450. mL of...

As a technician in a large pharmaceutical research firm, you need to produce 450. mL of 1.00 mol L−1mol L−1 potassium phosphate buffer solution of pHpH = 7.04. The pKa of H2PO4 is 7.21.

You have the following supplies: 2.00 L of 1.00 mol L−1 KH2PO4 stock solution, 1.50 L of 1.00 mol L−1 K2HPO4 stock solution, and a carboy of pure distilled H2O.

How much 1.00 mol L−1 KH2PO4 will you need to make this solution?

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