Question

calculate the number of moles in 56 gram of Nitrogen gas

Answer 1

n = 56 / 28
n = 4/2
n = 2

Answer 2

n = no. of moles
m = given mass
M = molar mass

Formula- n = m/M
n = 56/14*2 [ nitrogen gas]
n = 56/28
n = 2 moles