Solve this: A solution contains Na2CO3 and NaHCO3, 10 ml of the solution required 2 5 ml of 0 1 - Chemistry - Some Basic Concepts of Chemistry

Question

Solve this:
A solution contains Na2CO3 and
NaHCO3, 10 ml of the solution required 2 5 ml of 0 1 M
H2SO4 for neutralization using
phenolphthalein as indicator Methyl orange is then added a further
2 5 ml of 0 2 M H2SO4 was mixed The amount of
NaHCO3 in one litre of the solution is
Na2CO3 = 5 3 g

Vartika Jain · Accepted Answer

Dear Student,

With phenolpthalene, the reaction occurring isNa2CO3 + H+ → NaHCO3 + Na+To neutralise whole of Na2CO3, volume of H2SO4 will be twice of the given volumeN1 = (2×2
5)(2×0 1)10=0
1 NMass of Na2CO3 in 1L solution is =0
1×53=5
3 gVolume of sulphuric acid solution used in neutralising NaHCO3==2
5 mlHence, normality of NaHCO3 solution, N2=2
5×(2×0 2)10=0
1 NMass of NaHCO3 = 0 1×84=8
4 g

Solve this: A solution contains Na2CO3 and NaHCO3, 10 ml of the solution required 2.5 ml of 0.1 M H2SO4 for neutralization using phenolphthalein as indicator. Methyl orange is then added a further 2.5 ml of 0.2 M H2SO4 was mixed. The amount of NaHCO3 in one litre of the solution is Na2CO3 = 5.3 g