Chemistry

Hydrocyanic acid has a Ka of 4.0 X 10-10. What is the percent of ionization of a 1.0 molar solution?
my answer is 0.004% is this correct?

a) 0.004%
b) 0.0020%
c) 0.0004%
d) 0.02%

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  1. How did you get 0.004%? That isn't my answer.

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  2. Hydrocyanic acid has a Ka of 4.0 X 10-10. What is the percent of ionization of a 1.0 molar solution?
    my answer is 0.004% is this correct?
    (4.0 x 10-10)/1.0 x 100 this wrong?

    a) 0.004%
    b) 0.0020%
    c) 0.0004%
    d) 0.02%

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    posted by Centhia

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