Question

What is the chemical formula of natrolite?

• A. ${\text{Na}}_2{\text{Al}}_3{\text{Cl}}_3{\text{O}}_{10}.2{\text{H}}_2\text{O}$
• B. ${\text{Na}}_2{\text{Al}}_2{\text{Si}}_3{\text{O}}_{10}.2{\text{H}}_2\text{O}$
• C. ${\text{Mg}}_2{\text{Al}}_2{\text{Si}}_3{\text{O}}_4.10{\text{H}}_2\text{O}$
• D. ${\text{Na}}_2{\text{Al}}_2{\text{Cl}}_3{\text{O}}_4.10{\text{H}}_2\text{O}$

Answer 1

The correct option is B ${\text{Na}}_2{\text{Al}}_2{\text{Si}}_3{\text{O}}_{10}.2{\text{H}}_2\text{O}$

The chemical formula of natrolite is ${\text{Na}}_2{\text{Al}}_3{\text{Cl}}_3{\text{O}}_{10}.2{\text{H}}_2\text{O}$. It is an example of zeolite.
Passing water through this mixture is a method of softening of water.