Dichloromethane, CH2Cl2 (D) and ethanol, C2H6O (E) are miscible liquids.  At 25.0oC, the vapor pressure of pure D is 353. torr, and that of pure E is 56.1 torr. A solution is prepared that contains 23.3 grams of D and 79.4 grams of E.  What is the vapor pressure of D (PD)? What is the vapor pressure of E (PE)?

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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.