Na2 2 CO3 3 + 2HCl → → 2NaCl + H2 2 O + CO2 2 The indicator most suitable for this reaction should have a pH equal to

Na${}_2$CO${}_3$ + 2HCl $\to$ 2NaCl + H${}_2$O + CO${}_2$

The indicator most suitable for this reaction should have a pH equal to

Answer Details

Methyl orange is the best indicator for the reaction with range 3.1 - 4.4.