Aluminum sulfate can be made by the following reaction below. Aluminum sulfate is quite soluble in water, so to isolate it the solution has to be evaporated to dryness. This drives off the volatile HCI, but the residual solid has to be
AICI + 3H, SO → Al.(SO).+ 6HC.
a. How many grams of H, SO, are needed?
b. After the procedure, 28.36g of pure aluminum sulfate was isolated. Calculate the percent yield of the
reaction.

Why is the vapor pressure of a warm lake higher than the vapor pressure of a cold lake? o a. warm water has a greater heat of vaporization. ob. warm water evaporates more quickly. cool water evaporates more quickly. od. cool water has a greater heat of vaporization.

You just calculated that the heat of fusion for chloromethane is 6400 j/mol. the heat of fusion for hydrogen is 120 j/mol.? which of the following account for this difference? more than one correcta. chloromethane can absorb more energy at the same temperature. b. hydrogen has stronger intermolecular forces than chloromethane. c. hydrogen molecules can pack more closely than chloromethane molecules. d. chloromethane experiences dipole-dipole interactions. e. chloromethane has a higher molar mass than hydrogen.

What would be the original temperature of a gas that has a volume of 2.0 l and a pressure of 2.0 atm and an unknown temperature that the volume increased to 3.5 l in its pressure decreased to 1.0 atm if the final temperature is measured to be 11°c