Question

Find the mass of 100ml of carbondioxide at STP?

Answer 1

Find the mass of 100ml of carbondioxide at STP?

In order to find the mass of CO₂, we need to know number of moles.

At STP v = V/Vₘ

V = 0.1 L

Vₘ = 22.4 L/mol

v (CO₂) = 0.1/22.4 = 0.0045 mol

Then we have to multiply number of moles and molar mass of CO₂

m (CO₂) = v (CO₂) * m(CO₂)

m (CO₂) = 0.0045 * 44 = 0.198 g

m (CO₂) = 0.198 g