Calculate the degree of hydrolysis of 0.005 P \( \mathrm{M}-\mathrm...

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Calculate the degree of hydrolysis of 0.005
P \( \mathrm{M}-\mathrm{K}_{2} \mathrm{CrO}_{4} \). For \( \mathrm{H}_{2} \mathrm{CrO}_{4}, \mathrm{~K}_{\mathrm{al}}= \) infinite,

W \( \mathrm{K}_{\mathrm{a} 2}=5 \times 10^{-7} \).
(1) 0.002
(2) 0.02
(3) 0.2
(4) 0.005
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