A 100.00 g sample of Epsom salt, MgSO4, contains 20.20 g of magnesium, 26.64 g of sulfur, and the remainder is oxygen. What mass of oxygen is present in a 150.0 g sample of Epsom salt?

a 20-cm-long, cylindrical graphite (pure carbon) rod is inserted into an oxidizing atmosphere at 1145 k and 1.013 x 105 pa pressure. the oxidizing process is limited by the diffu- sion of oxygen counterflow to the carbon monoxide that is formed on the cylindrical surface.

answer7,570,82356 cubic centimeters;