Question

write the chemical equation for the reaction involved in the standardization of Hcl solution by standard Na2Co3 solution ​

Answer 1

Answer:

When solutions of sodium carbonate and hydrochloric acid are mixed, the equation for the hypothetical double displacement reaction is: Na2CO3 + 2 HCl → 2 NaCl + H2CO3 Bubbles of a colorless gas are evolved when these solutions are mixed.

Answer 2

The reaction between sodium carbonate and hydrochloric acid takes place in two stages:

Na2CO3(aq) + HCl(aq) → NaHCO3(aq) + NaCl(aq) (1)

NaHCO3(aq) + HCl(aq) → NaCl(aq) + CO2(g) + H2O(l) (2)