Chemistry Homework

Question

Carbon monoxide reacts with oxygen gas to form CO₂, as shown by the balanced equation below.

A reaction vessel contains 2.700 g of CO and 2.700 g of O₂.

How many moles of CO and O₂ do these masses represent?

Answer 1

molar mass CO = 28 g/mol

moles CO = 2.700 g x 1 mol / 28 g = 0.0964 mols CO

molar mass O₂ = 32 g/mol

moles O₂ = 2.700 g x 1 mol / 32 g = 0.0844 mols O₂