How Many Moles of Sodium Acetate Must Be Added to 500.0

question 64

Multiple Choice

How many moles of sodium acetate must be added to 500.0 mL of 0.250 M acetic acid solution to produce a solution with a pH of 4.94? (The pK_a of acetic acid is 4.74.)

• A)0.011 moles
• B)0.021 moles
• C)0.13 moles
• D)0.20 moles
• E)0.21 moles

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