Calculate the mass, in grams, of 2.95 mol of argon, Ar. mass of Ar:
Calculate the mass, in grams, of 0.627 mol of nitrogen dioxide, NOZ.
mass of NO2:

118 g of Ar; 28.8 g of

Explanation:

To convert from moles to grams, you simply multiply by the atomic mass. So the conversion table looks as follows:

The mol units cancel, and you are left with 118 g of Argon (117.8525 without sig-figs).

As for the next part of our problem, the first thing we need to do is find the molar mass of . e can do this by adding the weight of all the atoms within the compound:

N + 2(O) = (14.01) + 2(16) = 46.01 g

Then, we repeat the above process, except we use the molar mass we just found instead of the atomic weight:

Once again, the mol units cancel, and we are left with 28.8 g of (28.84827 before sig-figs).

every chemical equation adheres to the law of conservation of mass, which states that matter cannot be created or destroyed. therefore, there must be the same number of atoms of each element on each side of a chemical equation.

bcde is the incorrect answer it is a