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Rgisi · Answer 1 · 2023-01-15T06:00:49+0000

Number of molecules = Avogadro's number x Number of Moles
Volume of 1 mole of a gas at STP is 22.4l
Which means there are 56/22400 moles CO2 = 1/400 moles
Number of molecules = (6.023x10^23)x(1/400)
The answer would be 1.506 x 10^21

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