Question

Define atomicityand give examples.
Find the molecular mass of Na2CO3.​

Answer 1

Atomicity is defined as the total number of atoms that constitute a molecule. For example, each molecule of oxygen (O2) is composed of two oxygen atoms. So atomicity of oxygen is 2.In older contexts, the term atomicity is sometimes used in the same sense as valency.

The molar mass of Na2 CO3 • 10H2 O is 286.1412 g/mol. We have to multiply the molar masses of each element by the quantity of each respective...