The reaction of potassium hydroxide with hydrochloric acid is described by the following equation:
KOH + HCl = KCl + H2O;
Determine the mass of hydrochloric acid in the original solution.
m HCl = 365 x 0.05 = 18.25 grams;
The amount of hydrogen chloride substance (its molar mass is 1 + 35.5 = 36.5 grams / mol):
N HCl = 18.25 / (1 + 35.5) = 18.25 / 36.5 = 0.5 mol;
It is theoretically possible to obtain no more than 0.5 mol of potassium chloride.
Let’s find the mass of this amount of substance.
M KCl = 39 + 35.5 = 74.5 grams / mol;
m KCl = 0.5 x 74.5 = 37.25 grams;
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