cailinhannon8842 cailinhannon8842 12-07-2017 Chemistry contestada A sample of hydrated magnesium sulfate, mgso4 xh2o, weighs 21.0 g. it is placed inside of an oven until all of the water is vaporized, the anhydrous form weighs 12.0 g. what is the value of x in the hydrated salt? mgso4 = 120 gmol-1.