What is the mass of 3 * 10 ^ 23 nitrogen molecules?

we know that one mole contains 6.02 X 10 (23 degrees) molecules.
Well, according to the condition of the problem, we have 3 x 10 (to the 23rd power) molecules. And this is about 0.5 mol of nitrogen.
a mole of nitrogen (N2) weighs 28 g. Well, 0.5 mole will weigh 14 g.



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