What is the atomic mass of nitrogen

Well, we're learning about the mole at the moment, so when it ask us about that atomic mass, do we just write down what the periodic table says, or is there more to it?

So for Nitrogen, what it be: Atomic mass = 14 ?

And I was wondering how you do this problem : Sodium hypochlorite (NaClO) is the active ingredient in household bleach. What is the formula mass of sodium hypochlorite?

Molar Mass of Na = 22.99 g/mol
Molar Mass of Cl = 35.45 g/mol
Molar Mass of O = 16.00 g/mol

22.99 + 35.45 + 16.00 = 74.44 g/mol (NaClO)

The correct response would be that 1 mole of N atoms masses 14 GRAMS - or since nitrogen occurs in nature as a diatomic molecule - N2 - 28 GRAMS. The gram is a key word in the definition of a mole using periodic chart masses.

Na is 23 grams, Cl is 35.5 grams, O is 16 grams - add up the numbers. Caution Cl is either 35 or 37, but both occur in nature - they are isotopes of chlorine, ( just a note -like N2 chlorine exists in nature as Cl2), and the average mass of the two in nature is close to 35.5

Atomic mass of nitrogen is 14.007 grams/mole of atoms. That means 6.022*10^23 atoms of nitrogen mass at 14.007g

For the next problem, you just add up the 3 different atoms' atomic masses to get the atomic mass of the entire molecule.

about 14 atu