Calculate the molar mass of the nonvolatile solute
A solution is made from 96 g of a nonvolatile solute in 80.0 grams of water. The solution has a vapor pressure of .312 atm at 75°C. Calculate the molar mass of the nonvolatile solute. The vapor pressure of pure water at 75°C is 0.380 atm
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Calculate the fraction of adipic acid that can be extracted from a 50 mL solution of adipic acid in water into three 30-mL portions of ether.
Suppose you have a box containing one mole of He atoms. If theenergy required to ionize a helium atom from its ground state toHe+ is 24.587 eV. Deterimine the ratio of the number of helium ions to the number in ground state at 300K.
An aqueous solution of glycerol C3H8O3 is 48% glycerol by mass. Calculate the molality of the glycerol solution. (*Please show work so I can understand how to work it.)
16 fl. oz of a certain sample of juice contains the recommended daily allowance (60 mg). Given that 1 qt. = 0.95 L and that there are 32 fl oz.
Methane enters a heat exchanger at a volumetric flow rate of 120.0 m3/min, at a pressure of 1.013 bar and temperature of 5.0°C. At these conditions, the specific enthalpy of methane is -45.181 kJ/kg.
H(fusion)=842.2 cal/mol at mp 84.45K; H(vaporization)=4487 cal/mol at bp 231.04K; S=9.95 eu for heating solid propane from 0K to 85.45K; S=21.06 eu for heating liquid propane from 85.45K to 231.04K.
Assume that a reaction takes place at 296 K and 306 K. What must the activation energy be for the rate constant to double as described?
For a particular reaction, ΔH° is 20.1 kJ and ?S is 45.9 J/K. Assuming these values change very little with temperature, over what temperature range is the reaction spontaneous in the forward direction?
You\'d like to calculate the bubble-point temperature of the mixture, and the composition of the vapor formed at the bubble-point temperature two different ways.
For a Voltaic Cell involving Pb as the anode and Ag as the cathode, what would be the initial voltage of the cell if the initial concentration of Pb2+ was 0.5M and Ag+ was 0.1M
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