how many molecules are present in 0.02g of hydrogen gas?
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2 gram of h2 contains 6.023×10^23 molecules
then 0.02 gm of h2 contains
6.023×10^23×0.02/2
6.023×10^21 molecules
hope this helps you....
then 0.02 gm of h2 contains
6.023×10^23×0.02/2
6.023×10^21 molecules
hope this helps you....
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