Hey, I have a worksheet due tomorrow for my chem class and it includes #9 from the 1997 FR AP Chem Test. I can't figure it out! Any help would be appreciated! Here goes: An experiment is to be performed to determine the mass percent of sulfate in an unknown soluble sulfate salt. The equiptment available is: a scale, a funnel, a grad cylinder, a ringstand, a beaker, a stirring rod .20 M BaCl2, Unknown sulfate salt, and a drying oven. a) Explain a procedure to carry this out. b) What experimental data needs to be collected to calculate the mass percent of sulfate in the unknown c) List the calculations necessary to determine the mass percent of sulfate in the unknown d) Would .2 M MgCl2 be an acceptable subsitsute for the BaCl2 solution provided for this experiment? Explain. Thanks!