How many grams is 2.5 x 10^22 molecules of CH4?
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Answer:0.67 grams of CH4Explanation:To convert from molecules to grams, you need to first convert to moles then convert to grams.Avogadro's Number (6.022 x 10^23) tells us how many molecules are in a mole.(2.5 x 10^22)/(6.022 x 10^23) = 0.041514 moles of CH4Then we convert from moles to grams by multiplying moles of CH4 by the molar mass.0.041514 moles of CH4 x 16.04 g= 0.67 grams of CH4
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