By means of a plate column, acetone is absorbed from its mixture with air in a nonvolatile absorption oil. the entering gas has a flow rate of 100 moles/minute and contains 30 mole percent acetone. the entering oil contains 1.5 mole percent acetone and has a liquid flow rate, la, of 350 moles/minute. of the acetone in the air, 90 percent is to be absorbed. the equilibrium relationship is ye = 1.9 xe. plot the operating line and determine the number of ideal stages.

Astudent pours 10.0 g of salt into a container of water and observes the amount of time it takes for the salt to dissolve. she then repeats the process using the same amounts of salt and water but this time she slowly stirs the mixture while it is dissolving. the student performs the experiment one more time but this time she stirs the mixture rapidly. the dependent variable in this experiment is: time for salt to dissolve speed of stirring amount of water mass of salt