Question

1.Calculate the mass of Avogadro number of molecules of ammonium chloride. (atomic mass of N=14u, H=1u, Cl=35.5​

Answer 1

Answer:

Molecular mass of HNO

3

is the sum of the atomic masses of H,NO

So 1+14+16×3=63 u.

Answer

Answer 2

Answer:

(6.022 ×10^23)2

Explanation:

NH4Cl

N = 14

H = 1×4

Cl = 35.5

      total = 53 g

If 1 mole = 53g  

x = 107 g

53 × x = 1 × 107

53x = 107

x = 107/53

  =2.01 mole

1 mole = 6.022 × 10^23

2 mole = (6.022 × 10^23)2