a)H2SO4
b)CuS
c)HF
d)Zn(NO3)2
Which are strong, weak, or non electrolytes.
I was think A was strong B and C were weak and D is non
A is mixed. The first H ionizes at 100% so it is a strong electrolyte. The second one, however, has a k with it (about 0.012) so it is a weak electrolyte.
CuS is not soluble in water. I don't know how you classify it but since it doesn't dissolve it has no ions and I would go with a non-electrolyte.
HF is weak.
Zn(NO3)2 is readily soluble in water to form ions. It is a strong electrolyte.
yes thank you the 1st one was considered strong :)
Actually, I should not have included all of that extra material with the answer. The problem asked about electrolytes and not about ionization. Therefore, I should have answered "strong electrolyte" and stopped at that point. But there is no charge for the extra information. :)
To determine whether a substance is a strong, weak, or non-electrolyte, we need to consider the extent to which it dissociates into ions when it dissolves in water.
a) H2SO4 (sulfuric acid) - strong electrolyte:
Sulfuric acid fully dissociates into ions when it dissolves in water. The chemical equation is:
H2SO4 (aq) → 2H+ (aq) + SO4^2- (aq)
Since it completely dissociates into ions, sulfuric acid is considered a strong electrolyte.
b) CuS (copper(II) sulfide) - non-electrolyte:
Copper(II) sulfide does not dissociate into ions when it dissolves in water. As a result, it does not conduct electricity. It is considered a non-electrolyte.
c) HF (hydrofluoric acid) - weak electrolyte:
Hydrofluoric acid only partially dissociates into ions when it dissolves in water. The chemical equation is:
HF (aq) ⇌ H+ (aq) + F- (aq)
Since it only partially dissociates, hydrofluoric acid is considered a weak electrolyte.
d) Zn(NO3)2 (zinc nitrate) - strong electrolyte:
Zinc nitrate fully dissociates into ions when it dissolves in water. The chemical equation is:
Zn(NO3)2 (aq) → Zn^2+ (aq) + 2NO3- (aq)
Since it completely dissociates into ions, zinc nitrate is considered a strong electrolyte.
In summary:
- H2SO4 is a strong electrolyte.
- CuS is a non-electrolyte.
- HF is a weak electrolyte.
- Zn(NO3)2 is a strong electrolyte.