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CBSE Class 11-science Answered

How will you prepare sodium carbonate by Solvay Process?
Asked by Topperlearning User | 28 Jun, 2016, 02:00: PM
Expert Answer

Sodium carbonate is prepared by passing carbon dioxide through ammonia that gives ammonium carbonate. Subsequently ammonium carbonate is converted to ammonium hydrogen carbonate that reacts with sodium chloride to precipitate out sodium hydrogen carbonate. Sodium hydrogen carbonate later forms sodium carbonate.

2NH3  + H2O + CO2    (NH4)2CO3
(NH4)2CO3  +  H2O + CO2   2NH4HCO3
2NH4HCO3   + NaCl    NH4Cl + NaHCO3
 2NaHCO3 Na2CO3 + CO2 + H2O
Answered by | 28 Jun, 2016, 04:00: PM

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