1- An aqueous solution of 10.10 g of catalase, an enzyme found in the liver, has a volume of 1.04 L at 27°C. The solution's osmotic pressure at 27°C is found to be 0.745 torr. Calculate the molar mass of catalase.
2- Toluene and benzene form ideal solutions. Consider a solution of
toluene and benzene prepared at 25°C. Assuming that the mole
fractions of toluene and benzene in the vapor phase are equal,
calculate the composition of the solution. At 25°C the vapor
pressures oftoluene and benzene are 28 and 95 torr,
respectively.
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