(a) What is the chemical name and chemical formula of the compound washing soda? Starting from NaCl, how will you prepare washing soda? Give the relevant equations. Give any two uses of washing soda.
Answers
Answer:
The chemical formula of washing soda is Na2CO3, and its chemical name is sodium carbonate.
Washing Soda is sodium carbonate containing 10 molecules of water of crystallisation. ... In the following three steps, washing soda is prepared from sodium chloride or common salt. Firstly, a cold and concentrated sodium chloride solution is reacted with ammonia and carbon dioxide to obtain sodium hydrogen carbonate.
NaCl+NH3+CO2+H2O=======>NaHCO3+NH4Cl
NaHCO3=====>Na2CO3+CO2+H2O
Na2CO3+10H2O=====>Na2CO3.10H2O
Sodium carbonate (washing soda) is used in glass, soap, and paper industries.
It is used in the manufacture of sodium compounds such as Borax.
Sodium hydrogen carbonate is also ingredient in antacids. ...
It is also used in soda-acid fire extinguishers.