( NH 4 ) 2 S is a strong electrolyte. Determine the concentration of each of the individual ions in a 0.350 M ( NH 4 ) 2 S solution.

Question

 is a strong electrolyte. 

Determine the concentration of each of the individual ions in a  solution.

Answer 1

Being that (NH₄)₂ S is a strong electrolyte, it completely dissociates into NH₄⁺ and S^2-

(NH₄)₂S  → 2NH₄⁺  +  S^2-

So, with complete dissociation, have the amount of molarity added times the number of moles of each compound:

NH₄⁺ = 2 x (.350M) = .700M

S^2- = .350M

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