The rate at which a solid substance dissolves varies directly as the amount of undissolved solid present in the solvent and as the difference between the saturation concentration of the substance and the instantaneous concentration of the solution. Five grams of A are placed in 100 cc of solvent B. The solution when saturated will hold 10 grams of A. If 2 grams of A dissolves in 1 hour, how many grams of A will be in solution in 2 hours?

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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.