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Question

The number of molecules of CO2 present in 44g of CO2 is:

A
6.0×1023
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B
3×1023
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C
12×1023
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D
3×1010
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Solution

The correct option is C 6.0×1023
Molecular mass in gms =6.02×1023 molecules.
Molecular mass of CO2=12+16+6=44 gms.
44g of CO2 has 6.0×1023 molecules of CO2

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