A sample of nitrogen gas #N_2# weighs 42.8 g. How many molecules of #N_2# are present in this sample? How many atoms of N do these represent?
1 Answer
Oct 20, 2017
This will be
Explanation:
The nitrogen gas has a molar mass of 28.0 g. We divide the given mass by this number to get the number of moles.
Now, multiply the number of moles y Avogadros' number
Since each molecule of