In an experiment, 2.79*10^24 molecule of dry ice (CO2) were converted to gaseous CO2 at STP. What was the volume of the CO2 gas at STP?

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Answer 1

Convert molecules to moles.

2.79x10²⁴ molecules X 1 mole/6.02x10²³ molecules/mol = 4.63 moles

Volume = 4.63 moles x 22.4 L/mole = 10.38 liters

Volume at STP = 10.4 liters