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1) Acetic Acid is mixed with water in an experiment. The resulting concentration of H3O+ ions...

1) Acetic Acid is mixed with water in an experiment. The resulting concentration of H3O+ ions in the reaction at equilibrium (after everything has been mixed) is 0.013M. What is the pH of the new solution at equilibrium?

2)

A neutralization reaction with Acetic Acid and Sodium Hydroxide is run:

CH3COOH + NaOH -> CH3COONa + H2O

When the conjugate base (CH3COONa) concentration is 0.008M and the conjugate acid (CH3COOH) concentration in 0.0032M, what is the pH of the solution?

Ka for CH3COOH is 1.77x10-5.

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Answer #1

+ H20* Hydrolyis of the CH,COOH reaction: CH,COOH + H,0 = CH,COO x=[H,0*]=0.013 M pH = – log[H,0*] =- log(0.013) = 1.89 ol -

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