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Question 1 (5 points) Consider the following buffer system: 0.5 M H3PO4 and 0.2 M H2PO4-. What is the pH of such a system (Ka
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Answer #1

Equation: H2PO4 →→ H,PO; + H; PK=-log Ka = -log(7.5x10->) = 2.12 Concentration of H3PO4, (H2PO4]= 0.5M Concentrati on of H,PO

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