Answer:
Density
Explanation:
Density is a measure of how much mass is contained in a given volume
moles CO₂ = 5.57.10⁻⁴
<h3>Further explanation
</h3>
A mole is a number of particles(atoms, molecules, ions) in a substance
Can be formulated :

0.7% percent change with 3.5g of plant matter
mass :

moles :

you have to show us the rest of it because we have no idea what your looking at. I'm sorry