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Question

Calculate the number of moles, molecules, present in 1.1×104kg of CO2.

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Solution

1.1×104kg of CO2 (M.W of CO2=44g)
No. of moles=1.1×104×103g44=2.5×103
No. of molecules=No. of moles ×NA
=2.5×103×6.022×1023=15.055×1020

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