Calculate the [H3O+] when 1.65 grams of KOH are dissolved in 500.0 mL of solution

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  1. moles KOH = grams/molar mass.
    solve for moles.
    (KOH) = moles/L
    solve for (KOH) = ?? molar.

    That will be the OH^-.
    (H^+)(OH^-) = 1 x 10^-14
    solve for (H^+).

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