Determine the mass of carbon dioxide that is formed during the combustion of 36 g of coal (carbon)?

1.Let’s find the amount of carbon by the formula:

n = m: M, where M is molar mass.

M (C) = 12 g / mol.

n = 36 g: 12 g / mol = 3 mol.

C + O2 = CO2.

1 mole of carbon accounts for 1 mole of carbon dioxide. Substances are in quantitative ratios of 1: 1. The amount of carbon and carbon dioxide will be the same.

n (CO2) = 3 mol.

Let’s find the mass of carbon dioxide by the formula: m = n M,

M (CO2) = 44 g / mol.

m = 44 g / mol × 3 mol = 132 g.

Answer: 132 g.