What is the mass of 1.450 mol Cd3N2?

124.2 g

234.7 g

529.6 g

738.9 g

The given molecule is Cd3N2

Number of moles of Cd3N2 = 1.450

Step 1: Deduce the molar mass of Cd3N2

Atomic mass of Cd = 112 g/mol

Atomic mass of N = 14 g/mol

Molar mass of Cd3N2 = 3 (112) + 2 (14) = 364 g/mol

Step 2: Calculate the mass of Cd3N2

Number of moles of Cd3N2 = mass of Cd3N2/molar mass

Mass of Cd3N2 = number of moles * molar mass

= 1.450 moles * 364 g/mole = 527.8 g