Question

Calculate the number of molecules present in 7g of nitrogen gas​

Answer 1

Answer:

it contains 1.5 × 10^23 molecules.

Answer 2

Molar Mass of Nitrogen = 14 g

Mass given of the sample of Nitrogen = 7 g

Let the number of molecules be = x

→ 7/x = 14/1

→ x = ½ , or 0.5