Question

How many grams of CO2 are in 2.1 mol of the compound?

Answer 1

1 mole of  CO2 = 44 g CO2  


2.1 mol CO2 x (44. g CO2/1 mole CO2) = 92.4 g  grams of CO2 are in 2.1 mol of the compound

Answer 2

Molar mass CO2 = 12 + 16 x 2 => 44.0 g/mol

1 mol ----------- 44.0 g
2.1 mol --------- ( mass CO2)

mass CO2 = 2.1 x 44.0 / 1

mass CO2 = 92.4 / 1

= 92.4 g of CO2

hope this helps!