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Acetic Acid

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AP Chemistry

Definition

Acetic acid is an organic compound with the formula CH3COOH. It's what gives vinegar its sour taste and pungent smell.

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Subjects (9)

Practice Questions (8)

What is the pH of a 0.55 M solution of acetic acid? (Kₐ = 1.5x10-5)
25.0 mL of 1.0 M acetic acid is mixed with 25.0 mL of 1.0 M sodium hydroxide. What is the resulting pH?
A 35.0 mL sample of 0.150 M acetic acid is combined with 34.5 mL of 0.150 M NaOH. What is the pH of the solution? (Kₐ = 1.8x10^-5)
A solution of acetic acid has a pH of 6.75. The ratio of acid to conjugate base is _______________. (pKa = 4.75)
NaOH is added to a 500mL of 2M acetic acid. What volume of 2M NaOH must be added so that the pH of the solution is 4.8? (pKa = 4.8)
A solution contains 500 mL of 1 M acetic acid. How many moles of sodium acetate must be added to achieve a pH of 5.75? (pKa = 4.75)
You need to prepare an acetate buffer of pH 5.83 from a 0.642 M acetic acid solution and a 2.31 M KOH solution. If you have 975 mL of the acetic acid solution, how many milliliters of the KOH solution do you need to add to make a buffer of pH 5.830? (pKa = 4.752)
What is the molar mass of acetic acid (CH₃COOH)?

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