For the reaction with a solution of hydrochloric acid weighing 370 g, magnesium with a mass of 50 g
| August 13, 2021 | education
For the reaction with a solution of hydrochloric acid weighing 370 g, magnesium with a mass of 50 g was required. Determine the mass fraction of the acid in the solution.
Mg + 2HCL = MgCl2 + H2.
M (HCl) = 36.5 g / mol.
M (Mg) = 24 g / mol.
X g hydrochloric acid – 50 g magnesium.
2 * 36.5 g / mol – 24 g / mol.
X = 2 * 36.5 * 50/24 = 152 g.
W = 152/370 = 0.41; 41%. Of hydrochloric acid.
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