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Calculate the number of molecules given grams i.e how many molecules are there in 21.6 grams of CH4?
Wiki User
∙ 13y ago
You would multiply the number of grams x Avogadro's number=number of molecules:
(21.6g) X (6.022x10^23)= 1.301x10^25 molecules
Wiki User
∙ 13y ago
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