Question

Write the chemical formula and two uses of Washing Soda and Plaster of Paris (POP).

Hint:

{Washing Soda → \(Na_2CO_3 \cdot 10H_2O\)}
{Plaster of Paris → \(CaSO_4 \cdot \frac{1}{2}H_2O\)}

Answer 1

Concept: Washing soda and Plaster of Paris are important chemical compounds widely used in domestic and industrial applications.
Step 1:Washing Soda Chemical Formula: \[ Na_2CO_3 \cdot 10H_2O \] Washing soda is also known as sodium carbonate decahydrate. Uses:

• Used as a cleaning agent for washing clothes.
• Used in the manufacture of glass, soap, and paper.
• Used for softening hard water.

Step 2:Plaster of Paris (POP) Chemical Formula: \[ CaSO_4 \cdot \frac{1{2H_2O \] Plaster of Paris is obtained by heating gypsum. Uses:

• Used in making moulds, statues, and decorative items.
• Used in plaster casts to support fractured bones.
• Used for making false ceilings and wall finishing.