An aqueous solution of phosphoric acid, that is 2.00 percent by weight phosphoric acid, has a density of 1.0092 g/mL. A student determines that the freezing point of this solution is -0.464 °C.
Based on the observed freezing point, what is the percent
ionization of the acid and the value of
Ka1? Assume that only the first
ionization of the acid is important.
Kf for H2O is 1.86 °C/m.
% ionized | = % |
Ka1 | = |
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