Question

What mass of carbon dioxide gas is required to completely fill a 12.6L of balloon at STP?

Answer 1

Answer:

$m=24.76g$

Solution:

Amount of substance of carbon dioxide gas:

$\nu=12.6L/22.4L/mol=0.5625 mol$

Mass of carbon dioxide gas:

$m=\nu×M=0.5625mol×44.01g/mol=24.76g$