Question

Assuming equal concentrations, arrange these solutions by pH. Highest pH Lowest pH

a)NH₃(aq)
b)HI(aq)
c)NaOH(aq)
d)Ca(OH)₂(aq)
e)HF(aq)

Answer 1

The solutions can be arranged in increasing order of pH as follows: HI(aq), H₂SO₄(aq), HF(aq), Ca(OH)₂(aq), NaOH(aq).

Step-by-step explanation:

The solutions can be arranged in increasing order of pH as follows:

1. HI(aq) - Hydroiodic acid is a strong acid, so it has the lowest pH.
2. H₂SO₄(aq) - Sulfuric acid is also a strong acid, so it has the second lowest pH.
3. HF(aq) - Hydrofluoric acid is a weak acid, so it has a higher pH than the previous two.
4. Ca(OH)₂(aq) - Calcium hydroxide is a strong base, so it has a higher pH than the acids.
5. NaOH(aq) - Sodium hydroxide is also a strong base, so it has the highest pH among the solutions listed.