how many grams of carbon monoxide are required for the complete reaction of 27.2 grams of sulfur?

Question

sulfur (s) + carbon monoxide (g)  sulfur dioxide (g) + carbon (s)



Answer 1

S (s) + 2CO (g) → SO₂ (g) + 2C (s)

Use stoichiometry to convert mass of sulfur to mass of carbon monoxide. Mole ratio of S to CO is 1:2, molar masses of S and CO are 32.07 g/mol and 28.01 g/mol, respectively.

27.2 g S x (1 mol S / 32.07 g S) x (2 mol CO / 1 mol S) x (28.01 g CO / 1 mol CO) = 47.5 g CO