If somesone could explain these 3 questions and show steps as to how you got the answer, would be greatly appreciated!!
A solution is prepared by dissolving 40.89-grams of ethylene glycol (C2H6O2) in 0.677-kilograms of water. The final volume of the solution is 516-milliliters. For this solution, calculate the concentration as a mole percent (%). The molar mass of ethylene glycol is 62.07 g*mol-1 and the molar mass of water is 18.02 g*mol-1. Don't forget to include the unit symbol in the answer.
What is the vapor pressure (in torr) of 431-mL water, if the heat of vaporation is -10.8-kJ, β-constant is 30.5 fraction numerator m L over denominator m o l end fraction , R-constant is 0.00831 fraction numerator k J over denominator m o l cross times K end fraction , and the temperature is 568.13-Kelvin? Don't forget to include your units. Assume this is an Ideal Gas.
Benzene has a heat of vaporization of 30.72 open parentheses fraction numerator k J over denominator m o l cross times K end fraction close parentheses and a normal boiling point of 80.1oC. At what temerature, in oC, does benzene boil when the external pressure is 895-torr?
If somesone could explain these 3 questions and show steps as to how you got the answer, would be greatly appreciated!!
A solution is prepared by dissolving 40.89-grams of ethylene glycol (C2H6O2) in 0.677-kilograms of water. The final volume of the solution is 516-milliliters. For this solution, calculate the concentration as a mole percent (%). The molar mass of ethylene glycol is 62.07 g*mol-1 and the molar mass of water is 18.02 g*mol-1. Don't forget to include the unit symbol in the answer.
What is the vapor pressure (in torr) of 431-mL water, if the heat of vaporation is -10.8-kJ, β-constant is 30.5 fraction numerator m L over denominator m o l end fraction , R-constant is 0.00831 fraction numerator k J over denominator m o l cross times K end fraction , and the temperature is 568.13-Kelvin? Don't forget to include your units. Assume this is an Ideal Gas.
Benzene has a heat of vaporization of 30.72 open parentheses fraction numerator k J over denominator m o l cross times K end fraction close parentheses and a normal boiling point of 80.1oC. At what temerature, in oC, does benzene boil when the external pressure is 895-torr?
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