What Is the PH of a Buffer System Prepared by Dissolving

question 2

Multiple Choice

What is the pH of a buffer system prepared by dissolving 10.70 grams of NH₄Cl and 25.00 mL of 12 mol L^-1 NH₃ in enough water to make 1.000 L of solution?
K_b = 1.80 × 10^-5 for NH₃.

• A)9.08
• B)9.26
• C)9.43
• D)11.32

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