Question

if 10 raise to power 21 molecules of carbon dioxide are removed from 200 milligram of co2 then how many moles of co2 will be left??​

Answer 1

Explanation:

no of moles initially = 200 * 10^(-3) / 44

so, no of molecules = avogadro's number * no. of moles

u can find molecules left

and can continue with unitary method...

hope it helps....

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Answer 2

Answer:

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