Question

washing soda preparation
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Answer 1

Sodium bicarbonate commonly known as baking soda is a chemical compound with the formula NaHCO3. ... Sodium carbonate can be obtained by heating baking soda, recrystallization of sodium carbonate gives washing soda. ... Its chemical formula is Na2CO3 and is better known as sodium carbonate

When baking soda is heated, sodium carbonate, water and CO2 are produced. Sodium carbonate obtained is dissolved in water and crystals of washing soda are obtained by crystallization.

Answer 2

Answer: The balanced equation is given below.

Explanation:

When baking soda is heated, it produces sodium carbonate, water and carbon dioxide as the products.

The sodium carbonate obtained above as a product is then dissolved in water to obtain crystals of washing soda by the process of crystallization.

The equation for the formation of washing soda from baking soda is given by:            

               

NaHCO3 ----------on heating------->Na2CO3 +CO2+H20

Na2CO3+10H2O---->Na2CO3.10H2O