What is the mass of 0.75 mol of CO2?

The amount of a substance is a physical quantity that denotes the number of structural units (atoms, molecules, ions) in a specific mass of a substance (or volume for gaseous substances). Measured in moles. One mole equals 6.022140857 (74) 10 ^ 23 structural units. Calculation formula: n = m / M, where the number of moles of a substance of a given mass, m is the mass of a substance, M is the molar mass of a substance. From here we find the mass: m = n * M. M CO2 = 44 g / mol.

m (0.75 mol CO2) = 0.75 * 44 = 33 g (CO2)