Answer :
Mass of CO₂ = 132 g
Further explanation
A mole is a number of particles(atoms, molecules, ions) in a substance
This refers to the atomic total of the 12 gr C-12 which is equal to 6.02.10²³, so 1 mole = 6.02.10²³ particles
Can be formulated :
N = n x No
N = number of particles
n = mol
No = 6.02.10²³ = Avogadro's number
mole also can be formulated :
[tex]\tt n=\dfrac{mass}{MW}[/tex]
moles of CO₂ = 3
mass of CO₂(MW=44.01 g/mol) :
[tex]\tt mass=mol\times MW\\\\mass=3\times 44.01\\\\mass=132.03~g\approx 132~g[/tex]