the hydrogen sodium hydrogen carbonate is a basic salt. justify the statement.how is it convertedjustify the statement.how is it converted into washing soda?? explain.
Answers
Explanation:
Sodium hydrogen carbonate (Na₂HCO₃) is a basic salt because it is made up of a weak acid and strong base.
Reaction: NH₃ + NaCl + H₂O + CO₂ → NH₄Cl + Na₂HCO₃
[Ammonia] + [Water] + [Carbon Dioxide] → [Ammonium Chloride] + [Baking Soda or Sodium hydrogen carbonate].
2NaHCO₃ →(heat) Na₂CO₃ + H₂O + CO₂
[Baking Soda] →(heat) [Sodium carbonate] + [Water] + [Carbon Dioxide]
You have seen above that sodium
carbonate can be obtained by heating baking soda; recrystallisation of
sodium carbonate gives washing soda. It is also a basic salt.
Na₂CO₃ + 10H₂O → Na₂CO₃.10H₂0
Hope it helps :)
OR
Sodium hydrogen carbonate is a basic salt because its parent base is strong(NaOH) and parent acid is weak(H2CO3).
it involves following reactions:-
NaHCO3 is heated to form Na2CO3 + H2O + CO2
then
Na2CO3 (crystallization)> Na2CO3.10H2O(washing soda)
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Answer:
A COLD AND COCENTRATED SOLUTION OF SODA CHLORIDE SOLUTION (BRINE) REACT WITH AMMONIA AND CARBON DIOXIDE TO FORM FIRST SODIUM BICARBONATE . ON HEATING SODIUM BICARBONATE , IT DECOMPOSES INTO SODIUM CARBONATE.
1. NACL+ H20+NH3+CO2->NAHCO3+NH4CL
2.NAHCO3 -> NA2CO3(anhydrous ssodium carbonate) +H2O+CO2
3. NA2CO3 + 10 H2O -> NA2CO3.10H20