Calculate the pH of a formic acid solution that contains 1.42% formic acid by mass. (Assume a density of 1.01 g/mLg/mL for the solution. The KaKa is 1.8×10−41.8×10−4.)         Express your answer to two decimal places.

Chemistry & Chemical Reactivity
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Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
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Chapter4: Stoichiometry: Quantitative Information About Chemical Reactions
Section: Chapter Questions
Problem 109GQ: (a) What is the pH of a 0.105 M HCl solution? (b) What is the hydronium ion concentration in a...
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Calculate the pH of a formic acid solution that contains 1.42% formic acid by mass. (Assume a density of 1.01 g/mLg/mL for the solution. The KaKa is 1.8×10−41.8×10−4.)        
Express your answer to two decimal places.
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