A 500 ML Sample of 0

question 10

Multiple Choice

A 50.0 mL sample of 0.155 M HNO₂(aq) is titrated with 0.100 M NaOH(aq) .What is the pH of a solution after the addition of 25.0 mL of NaOH? (K_a of HNO₂ = 4.5 × 10^-4)

• A) 3.02
• B) 3.22
• C) 3.67
• D) 3.86
• E) 4.05

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