1) A 0.200 M solution of a weak acid, HA, is 9.4% ionized. Using this information, calculate K_{a} for HA.

a. 1.8 x 10^{-3}

b. 3.8 x 10^{-3}

c. 9.4 x 10^{-3}

d. 1.9 x 10^{-2}

2) A 0.10 M solution of a weak base, B, is 6.4 percent ionized at 25 degrees Celsius. Using this information, calculate K_{b} for B.

a. 4.1 x 10^{-4}

b. 6.0 x 10^{-4}

c. 6.4 x 10^{-2}

d. 6.4 x 10^{-3}

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