A 13.7g sample of an unknown gas occupies 15.5L at a temperature of 17 CELSIUS and a pressure of 743 mmHg.What is the molar mass of the gas?
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An aqueous CaCl2 solution has a vapor pressure of 81.7 mmhg at 50C. The vapor pressure of pure water at this temperature is 92.6 mmhg.What is the concentration of CaCl2 in mass percent?
What is the molar mass of an ideal gas if a .622 g sample ofthis gas occupies a volume of 300 ml at 35 degrees Celsius and 789mmHg?