Carbon disulfide is prepared by heating sulfur and charcoal. The chemical equation is S2(g) + C(s) CS2(g) K = 9.40 at 900 K How many grams of CS2 (g) can be prepared by heating 17.2 mol S2(g) with excess carbon in a 7.50 L reaction vessel held at 900 K until equilibrium is attained? mass of CS2(g): g