What Mass of Ammonium Nitrate Must Be Added to 350

question 93

Multiple Choice

What mass of ammonium nitrate must be added to 350.mL of a 0.150 M solution of ammonia to give a buffer having a pH of 9.00? (K_b(NH₃) = 1.8 × 10^-5)

• A)7.6 g
• B)2.4 g
• C)5.4 g
• D)11 g
• E)3.3 g

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