Question

calculate the number of GAM of the following
a) 200g of calcium b) 140g of nitrogen (Atomic mass :CA =40, Na =14 )​

Answer 1

Answer:

28

Explanation:

1 mole nitrogen contains 6.02×10

23

nitrogen molecules.

Thus 14 gram nitrogen will contain 14/28.Na=0.5Na=3.01×10

23

nitrogen molecules. ( Molecular weight of nitrogen is 28)