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Chemistry
Caleb Mccullough
27 October, 21:01
How many grams is 2.5 x 10^22 molecules of CH4?
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Draven Lin
28 October, 00:47
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0.67 grams of CH4
Explanation:
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 CH4
Then 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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