Question

Calculate the number of atoms in 3.4moles of nitrogen atom

Answer 1

Answer:

47.6 gm.

Explanation:

molar mass of nitrogen atom N is 14

we know the formula is ,

n = m/ M [Here, n= no. of moles

m= given mass

M= molar mass]

=> 3.4 = m / 14

=> 3.4 × 14 = m

Hence , m = 47.6 gm.

Answer 2

Answer:

2.05x10^24

Explanation:

Moles  3.4 moles

NA=6.022x10^23

Number of atoms= mole x NA

                            = 3.4 x 6.022 x 10^23

                            = 20.5 x 10^23

                            = 2.05 x 10^24