Question

Calculate the mass of propylene glycol (C3H8O2) that must be added to 0.320 kg of water...

Calculate the mass of propylene glycol (C3H8O2) that must be added to 0.320 kg of water to reduce the vapor pressure by 2.86 torr at 40 ∘C (PH2O at 40 ∘C=55.3torr).

Express your answer using three significant figure

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Answer #1

55.3 to yr - 2.86 torra 52:44 torr (52 44 toor) (55.3 toor)= 0.948 (mole fraction of H2o in the solutions (3208 H2O1C18015328

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