A) A solution has [H3O+] = 7.2×10−5 M . Use the ion product constant of water Kw=[H3O+][OH−] to find the [OH−] of the solution. Express your answer to two significant figures.
B)Use the data in the simulation to find the concentration of hydroxide, OH−, ions in a 0.100 M solution of HF, hydrofluoric acid. Express your answer to three significant figures, and include the appropriate units.
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