CBSE - X - Chemistry
what is sodium bicarbonate ?
Chemical formula: NaHCO3
It is produced on a large scale by treating cold and concentrated solution of sodium chloride (brine) with ammonia and carbon dioxide.
NaCl + H2O + CO2 + NH3 → NH4Cl + NaHCO3
On heating sodium hydrogen carbonate solution, it decomposes to give sodium carbonate with the evolution of carbon dioxide.
2NaHCO3 Na2CO3 + H2O + CO2
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