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Safrole is used as a topical antiseptic. Calculate the vapor pressure of a solution prepared by dissolving 0.75 mol of safrole in 950 g of ethanol (46.07 g/mol). P°ethanol = 50.0 torr at 25°C

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Nestor Rutherford
Nestor RutherfordLv2
28 Sep 2019
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Related questions

(a) Calculate the vapor pressure of water above a solution prepared by dissolving 28.5 g of glycerin (C3H8O3) in 125 g of water at 343 K. (The vapor pressure of water is given in Appendix B.) (b) Calculate the mass of ethylene glycol (C2H6O2) that must be added to 1.00 kg of ethanol (C2H5OH) to reduce its vapor pressure by 10.0 torr at 35 °C. The vapor pressure of pure ethanol at 35 °C is 1.00 × 102 torr.

A 0.500 mol sample of ethanol is cooled from 110.0 oC to 22.0 oC (exterior pressure at 1 atm). Calculate the energy released (in kJ) during the temperature change. (Ethanol: CH3CH2OH, 46.07 g/mol)

PLEASE SHOW ALL FORMULAS AND DETAILED WORK. THANKS.

Part A

Calculate the vapor pressure of water above a solution prepared by dissolving 28.0 g of glycerin (C3H8O3) in 145 g of water at 343 K. (The vapor pressure of water at 343 K is 233.7 torr.)
PH2O = torr

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Part B

Calculate the mass of ethylene glycol (C2H6O2) that must be added to 1.00 kg of ethanol (C2H5OH) to reduce its vapor pressure by 9.00 torr at 35∘C. The vapor pressure of pure ethanol at 35∘C is 1.00×102 torr.
m = g

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