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.

Harvey kept a balloon with a volume of 348 milliliters at 25.0˚c inside a freezer for a night.  when he took it out, its new volume was 322 milliliters, but its pressure was the same.  if the final temperature of the balloon is the same as the freezer’s, what is the temperature of the freezer? the temperature of the freezer is  kelvins.

Describe the difference between a. a hypothesis and a theory and b. an observation and an experiment.

The characteristic of two different types of reactions are shown below. reaction a: electrons are gained by the atoms of an element. reaction b: protons are lost by the atom of and element. which statement is true about the atoms of the elements that participate in the two reactions? a: their identity changes in both reaction a and b. b: their identity changes in reaction a but not b. c: their identity changes in reaction b but not a. d: their identity remains the same.