Does this mean that 2 moles of CO2 = 88g. 1 mole = C (12g) + 2 O (32g) = 44g 2 mole = 44g x 2 = 88g?

1 Answer
Sep 30, 2017

Well, yes, we know that the molar mass of carbon dioxide is #44.0*g*mol^-1#....

Explanation:

And thus we can approach the problem dimensionally, i.e. if asked to give the mass of two moles of carbon dioxide...we take the product....

#2*cancel(mol)xx44.0*g*cancel(mol^-1)=88.0*g#

The units cancel appropriately to give an answer in grams, as we require for a mass. Capisce?