What Mass of Ammonium Chloride Must Be Added to 250

question 65

Multiple Choice

What mass of ammonium chloride must be added to 250.mL of water to give a solution with pH = 4.85? [K_b(NH₃) = 1.8 × 10^-5]

• A)4.7 g
• B)75 g
• C)2.3 × 10^-3 g
• D)19 g
• E)10.g

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