4.8 g/cm3 with sig figs since it's mass/volume you divide 76 grams by 16 cm3
Mass of CO₂ = 132 g
<h3>Further explanation
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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 :

moles of CO₂ = 3
mass of CO₂(MW=44.01 g/mol) :

Explanation:
conduction involves the transfer of molecules due to the movement of particles