Question

calculate the number particles present in 56 gm of N2 molecules

Answer 1

56/14(mass of n2) =4 particles ans

Answer 2

Hellooo

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.