Answer to Question #209322 in General Chemistry for Gaby

Question

what are the spectator ions of lithium sulphate and strontium hydroxide

Answer 1

Spectator ions are ions that are existing throughout a reaction but are unaffected by it, therefore they are in the same state on both sides of the equation. Without the spectator ions, the equation becomes: H⁺ ( a q ) + O H^- ( a q ) =H₂O ( l ). Every neutralisation reaction undergoes this transformation.

Equation

Sr(OH)₂ + Li₂SO₄ → SrSO₄ + 2LiOH

so spectator ions for:

lithium sulphate (Li₂SO₄) are = Li⁺ and SO₄^-

and strontium hydroxide (Sr(OH)₂) are = Sr²⁺ and OH^-