How many grams of chlorine, Cl2, are
in one mol?
This can be determined by finding the molecular
mass of Cl2.
2 x 35.453 u = 70.906 u
The molecular mass of Cl2 is 70.906 u.
When this mass is expressed in units of grams, 70.906
grams, that mass of chlorine contains 6.022 x 1023
molecules of Cl2 and is also a mol. So
there are 70.9 grams in one mol of Cl2.
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