Question

Which solution has the highest electrical conductivity? Explain why.

a) 0.1 M of H2S

b) 0.1 M of HNO2

c) 0.1 M of H2SO3

d) 0.1 M of NH4Cl

Answer 1

Given solutions are:

a) 0.1 M of H2S

b) 0.1 M of HNO2

c) 0.1 M of H2SO3

d) 0.1 M of NH4Cl

Step-by-step explanation:

The electrical conductivity of a solution is directly proportional to the number of ions present in it.

All the given solutions have the same concentration.

But on dissociation, each solution produces a different number of ions as shown below:

`H{2} S ->HS^(-)+H^(+)`

2 ions per molecule.

`HNO{2} -> H^(+) + NO{2}^(-)`

2 ions per molecule.

`H2SO3 -> 2H^(+) +SO{3} ^(2-)`

3 ions per molecule.

`NH{4}Cl -> NH{4}^(+) + Cl^(-)`

2 ions per molecule.

Answer:

0.1M H2SO3 has high electrical conductivity.