Calculate the volume of 220 g of carbon dioxide at STP
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CHEMISTRY
22 grams of CO
2
at STP is identical to :
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ANSWER
The molecular weigh of CO
2
is 44 g/mole.
Twenty-two grams of CO
2
at STP corresponds to
44
22
=0.5 moles.
1 mole of CO
2
=6.022×10
23
molecules.
0.5 mole of CO
2
=3.011×10
23
molecules.
1 mole of CO
2
= 3 moles of atoms whic corresponds to 3×6.022×10
23
. atoms.
0.51 mole of CO
2
= 1.5 moles of atoms whic corresponds to 1.5×6.022×10
23
. atoms.
At STP, 1 mole of any gas occupies a volume of 22.4 L.
Hence, at STP, 0.5 mole of CO
2
gas occupies a volume of 0.5×22.4=11.2 L.
Explanation:
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