As a technician in a large pharmaceutical research firm, you need to produce 100. mL of...

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As a technician in a large pharmaceutical research firm, you need to produce 100. mL of...

As a technician in a large pharmaceutical research firm, you need to produce 100. mL of a potassium dihydrogen phosphate buffer solution of pH = 6.91. The p K a of H 2 P O 4 ? 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? (Assume additive volumes.)

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Answer 1

Answer #1

The pH of a buffer solution can be determined by the Henderson-Hasselbalch equation Acid: KH2PO, Salt KHPO K2HPO4 4 KHPO4 pHp

30 mL of 1M acid was chosen Acid: 30 mL sal: 30 mL x 0.50 = 15 mL (KH2PO4) al 30mL (acid 15 ml (sal) total 45 mL of the solut

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Answer 2

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As a technician in a large pharmaceutical research firm, you need to produce 450.ml of 1.00M potassium phosphate buffer...

As a technician in a large pharmaceutical research firm, you need to produce 100. mL of...

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Add Answer to: As a technician in a large pharmaceutical research firm, you need to produce 100. mL of...

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