1- An aqueous solution containing 36.5 g of an unknown molecular (non-electrolyte) compound in 154.3 g of water was found to have a freezing point of -1.4 âC.

Calculate the molar mass of the unknown compound.

2-An aqueous KNO3 solution is made using 79.9 g of KNO3diluted to a total solution volume of 1.90 L .

Calculate the molality of the solution. (Assume a density of 1.05 g/mL for the solution.)

Calculate the mass percent of the solution. (Assume a density of 1.05 g/mL for the solution.)

Question

1- An aqueous solution containing 36.5 g of an unknown molecular (non-electrolyte) compound in 154.3 g of water was found to have a freezing point of -1.4 âC.

Calculate the molar mass of the unknown compound.

2-An aqueous KNO3 solution is made using 79.9 g of KNO3diluted to a total solution volume of 1.90 L .

Calculate the molality of the solution. (Assume a density of 1.05 g/mL for the solution.)

Calculate the mass percent of the solution. (Assume a density of 1.05 g/mL for the solution.)

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