What Is the PH of a Solution Prepared by Mixing

question 20

Multiple Choice

What is the pH of a solution prepared by mixing 0.250 mol of hydrazoic acid, HN₃, and 0.500 mol of sodium azide, NaN₃, to make 1.00 liter of solution?
( K _a = 1.9×10 ^{- 5})

• A) 4.42
• B) 5.02
• C) 9.58
• D) 4.72
• E) 8.98

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