Question

Find out the atomicity of the following molecules.

(i) CaCo3
(ii) Na2So4
(iii) Ca(HCo3)2
(iv) Al2(So4)3

Answer 1

__________here is ur answer______
atomicity is the number of atoms present in a molecules
1.. 1+1+3=5
2... 2+1+4=7
3.. 1 +2+2+6=11
4..2+3+12=17
hope it helps☺☺☺

Answer 2

Given,

Four molecules:

(i) CaCo3

(ii) Na2So4

(iii) Ca(HCo3)2

(iv) Al2(So4)3

To find,

The atomicity of the four molecules.

Solution,

We can simply solve this numerical problem by using the following process:

As per the principles of chemistry,

Atomicity of a molecule

= total number of constituent atoms in each molecule of the compound

Now,

Atomicity of CaCo3

= 1 calcium atom + 3 cobalt atoms

= 4

Atomicity of Na2So4

= 2 sodium atoms + 1 sulfur atom + 4 oxygen atoms

= 7

Atomicity of Ca(HCo3)2

= 1 calcium atom + 2 hydrogen atoms + 2 cobalt atoms + 6 oxygen atoms

= 11

Atomicity of Al2(So4)3

= 2 aluminum atoms + 3 sulfur atoms + 12 oxygen atoms

= 17

Hence, the atomicity of CaCo3 is 4, atomicity of Na2So4 is 7, atomicity of Ca(HCo3)2 is 11, and the atomicity of Al2(So4)3 is 17, respectively.