Carbon disulfide is prepared by heating sulfur and charcoal. The chemical equation is S2(g)+C(s)-- --CS2(g)Kc=9.40 at 900 K How many grams of CS2(g) can be prepared by heating 15.0 mol S2(g) with excess carbon in a 9.35 L reaction vessel held at 900 K until equilibrium is attained?