43. Solving a chemistry problem
3. Mg(NO3)2*6H2O crystalline hydrate contains MgCl2*6H2O impurity. Calculate the mass fractions (%) of the components in the preparation, if 0.1242 g of Mg2P2O7 was obtained from 0.2812 g of the preparation. Answer: 93.22% ; 6.78%.
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