Question

i) calculate the number of gram atoms and number of gram molecules contained in 56 grams of N2​

Answer 1

Answer:

The molar mass, that is the mass of one mole of N2 gas is 28g. One mole of any substance contains 6.023 X 1023 particles. Hence, there are 6.023 X 1023 molecules of N2 in 28g of N2. Thus

28 g of N2 = 6.023 X 1023 molecules of N2

1 g of N2 = (6.023 X 1023 / 28) molecules of N2

So 56 g of N2 = [(6.023 X 1023 X 56) / 28] molecules of N2

= 12.046 X 1023 molecules of N2.

Answer 2

Answer:

the number of gram atoms and number of gram molecules contained in 56 grams of N2

12.046 X 1023 molecules of N2