5,A weak acid, HA, with a molarity = 0.180 M was found to have a pH = 4.54. Calculate the ionization constant, Ka. Group of answer choices A, 5.32 x10-11 B, 2.51 x10-4 C, 2.64 x10-7 D, 4.62 x10-9 6,Calculate the percent ionization for a 0.500 M HCN solution. Ka = 6.17 x 10-10. Group of answer choices A, 13.5
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5,A weak acid, HA, with a molarity = 0.180 M was found to have a pH = 4.54. Calculate the ionization constant, Ka.
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