Question

The substance known as soda ash is $N{{a}_{2}}C{{O}_{3}}$.
(A) True
(B) False

Answer 1

Hint: Soda ash is also known as other names like washing soda, and soda crystals. Soda ash is produced by a reaction between sodium chloride and limestone by the process of the Solvay process.

Complete step by step solution:
Soda ash is an inorganic compound of the element sodium that belongs to group 1 of s-block.
Soda ash is known as other names like washing soda, and soda crystals. The IUPAC name of soda ash is sodium carbonate. The formula of soda ash is $N{{a}_{2}}C{{O}_{3}}$. There are various hydrate forms of soda ash, the most famous form is Decahydrate, which is known as washing soda. The formula is $N{{a}_{2}}C{{O}_{3}}.10{{H}_{2}}O$. The colour of soda ash is white and it is in powder form.
The soda ash is extracted from the ashes of plants growing in sodium-rich soil. Because the ashes of sodium-rich are different from the ashes of wood, that's why it is called soda ash.
The molar mass of soda ash or sodium carbonate is $105.9888\ \text{g/mol}$. Soda ash is an odourless compound.
The density of soda ash is $2.54\text{ g/c}{{\text{m}}^{3}}$at ${{25}^{\circ }}C$.
The melting point of soda ash is ${{851}^{\circ }}C$, which means it decomposes at ${{851}^{\circ }}C$.
The major application of soda ash is, in the production of glass, paper, rayon, soap, and detergents.
We know that hard water is not suitable for humans because of the presence of ions of calcium and magnesium. So, the sodium carbonate helps in softening the water by removing magnesium and calcium ions. The calcium and magnesium ions precipitate as carbonates.
$C{{a}^{2+}}+CO_{3}^{2-}\to CaC{{O}_{3}}$.

So, the statement “The substance known as soda ash is $N{{a}_{2}}C{{O}_{3}}$” is true.

Note: We can find soda ash in arid regions as mineral deposits when the seasonal lake evaporates because the sodium carbonate is soluble in water. Soda ash is used as a wetting agent in the brick industry.