Consider the fictional element A (which has a molar mass of 7.00 g/mol) and the fictional element D (which has a molar mass of 13.00 g/mol). Suppose that 12.30 grams of an unknown hydrate of AD3 are heated until a constant mass of 6.90 grams is reached. How many waters are in the empirical formula of the hydrate? (For example, if the empirical formula were Na2SO4 ⋅ 10 H2O, your answer would be 10.)

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Solutions

Solutions can be considered as homogeneous mixtures which contain two or more than two chemical substances. The chemical substance which is the greater part is defined as solvent. And the chemical substance that is dissolved in a solvent is referred to as solute. Solution chemistry plays an important role in chemistry since it supports many commercial applications of solutions.