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кεεωεε ♥ ×○, asked in Science & MathematicsChemistry · 8 years ago

Chemistry Problem--pH and Ka?

If a weak acid has an initial concentration of 0.36M and is dissociated at 0.07%, what is the concentration of H3O+ in the solution?

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  • Robert D
    Lv 7
    8 years ago
    Favorite Answer

    [H3O^+] = 0.36 M(0.0007) = 0.000252 M = 2.52 x 10^-4 M

    0.07% means 0.07/100 = 0.0007

    Once you know this relationship this type of problem becomes easier.

    Hope this is helpful to you. JIL HIR

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