Question

(4 1013
2. Calculate the formula unit
masses of Zno, Na O, K,CO,
given atomic masses of Zn = 65
Na = 23 u, K = 39 u, C = 12 u,
and 0 = 16 u.​

Answer 1

Step-by-step explanation:

(i)It is give that,

Zn=65u

O=16u

Then,

Zno=Zn+O

=>ZnO=65+16

=81u

(ii)It is given that,

Na=23u

O=16u

Then,

NaO=Na+O

=>NaO=23+16

=39u

(iii)It is given that,

K=39u

C=12u

O=16u

Then,

KCO=K+C+O

=>KCO=39+12+16

=64u

I hope it will help :)