All of the following are true about a one mole sample of nitrogen gas (N2) EXCEPT:

The mass of the sample is 28.0 grams


At a temperature of 0oC and a pressure of 101.3 kPa, the sample has a volume of 22.4 dm3


The sample contains 6.02 x 1023 molecules


The sample contains 6.02 x 1023 atoms


All of the following are true about a one mole sample of nitrogen gas (N2) EXCEPT:
Mass of 1 mol of N2 is 14*2 = 28 g is correct.


The second one is also correct as it is a fact.


The sample contains 6*10^23 molecules is also true, look up Avogadro's constant.


The sample contains 6*10^23 atoms is not true. 1 mole of N2 contains 2 mol of N atoms, because technically, when one molecule of N2 is broken up, it gives 2 N atoms (the formula of nitrogen gas is N2).


Since 1 mol of a substance contains 6*10^23 particles, 2 mol of N contains 1.2 * 10^24 particles.All of the following are true about a one mole sample of nitrogen gas (N2) EXCEPT:
The sample contains 6.02x10^23 atoms is not true
Maybe this would help you: http://gemini.tntech.edu/~tfurtsch/scihi鈥?/a>


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