An experiment conducted at 20 oC requires an atmosphere in which the partial pressure of water is a constant 10.0 torr. The experiment will be conducted inside a sealed container in which there is a beaker containing a solution of ethylene glycol (FW 62.07) and water (FW 18.02). At 20 oC, the vapor pressure of pure ethylene glycol is 0.056 torr and that of pure water is 17.3 torr. What mass of ethylene glycol must be mixed with 200. g water to produce a solution with a 10.0 torr vapor pressure of water? (Report the answer to three significant figures.)

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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.