Question #130a3

1 Answer
Nov 2, 2016

NaHSO4 produces H+ ion in its aqueous solution, which combines with CO23 ions (formed on ionisation of Na2CO3) to form H2CO3,an unstable weak acid.This acid readily decomposes to form CO2 gas.

2NaHSO42Na++2H++2SO2-4

Na2CO32Na++CO2-3

CO2-3+2H+H2CO3

H2CO3H2O+CO2

Equation of the net reaction

Na2CO3+2NaHSO42Na2SO4+H2O+CO2