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18 Nov 2019
Remember to show all of your work. the molar enthalpy of vaporization of methanol is 35.2 kJ/mole at 64.6 degree C. How much energy is required to evaporate 1.00 kg of methanol ai 64.6 degree C? A substance has a heat of vaporization of 16.69 kj/mole. At 254.3 K it has a vapor pressure of 92.44 mm Hg. Calculate its vapor pressure at 275.7 K. What is the vapor pressure of a substance at 308.1 K if it has a vapor pressure of 73.15 torr at 286.6. Its heal of vaporization is 25.44 kJ/mol. A substance has a vapor pressure of 77.86 mm Hg at 318.3 K and a vapor pressure of 161.3 mmHg at 340.7 K. Calculate its heat of vaporization in kJ/mol. What is the mole fraction of calcium chloride in 3.35 m CaCl_2 (aq)? the molar mass of CaCl_2 is 111.0 g/mole and the molar mass of water is 18.02 g/mol. What is the molality of ethanol, C_2H_5 OH, in an aqueous solution that is 48.2% ethanol by mass? What is the mole fraction of urea, CH_4 N_2 O in an aqueous solution that is 46% urea by mass? What volume of a 0.850 M solution of CaCl_2 contains 1.28 g of solute?
Remember to show all of your work. the molar enthalpy of vaporization of methanol is 35.2 kJ/mole at 64.6 degree C. How much energy is required to evaporate 1.00 kg of methanol ai 64.6 degree C? A substance has a heat of vaporization of 16.69 kj/mole. At 254.3 K it has a vapor pressure of 92.44 mm Hg. Calculate its vapor pressure at 275.7 K. What is the vapor pressure of a substance at 308.1 K if it has a vapor pressure of 73.15 torr at 286.6. Its heal of vaporization is 25.44 kJ/mol. A substance has a vapor pressure of 77.86 mm Hg at 318.3 K and a vapor pressure of 161.3 mmHg at 340.7 K. Calculate its heat of vaporization in kJ/mol. What is the mole fraction of calcium chloride in 3.35 m CaCl_2 (aq)? the molar mass of CaCl_2 is 111.0 g/mole and the molar mass of water is 18.02 g/mol. What is the molality of ethanol, C_2H_5 OH, in an aqueous solution that is 48.2% ethanol by mass? What is the mole fraction of urea, CH_4 N_2 O in an aqueous solution that is 46% urea by mass? What volume of a 0.850 M solution of CaCl_2 contains 1.28 g of solute?
Reid WolffLv2
8 Mar 2019