4 g carbon were heated with 8 g of sulphur. How much carbon disulphide (CS2) will be formed when the reaction is completed? What will be its percentage purity?
C + 2 S → CS2
12g 2 × 32 12 + 2 ×3 2
= 64 g = 76 g
Obviously, sulphur will be the limiting reactant.
8 g sulphur will produce
Total mass of products
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