A.) The reaction of ammonia with copper(II) ions is an exampleof a Lewis acid-base reaction. Which is the acid and which is thebase? Explain. B.) I did a lab on the preparation and analysis oftetraamminecopper(II) sulfate monhydrate crystals. Which is thelimiting reagent in this experiment? Explain. A.) The reaction of ammonia with copper(II) ions is an exampleof a Lewis acid-base reaction. Which is the acid and which is thebase? Explain. B.) I did a lab on the preparation and analysis oftetraamminecopper(II) sulfate monhydrate crystals. Which is thelimiting reagent in this experiment? Explain.
Explanation / Answer
We Know that : According to Lewis - Acid base theory: The substance which accept theelectron pair is considered to be Lewis - Acid and the substancewhich donates the pair of electrons areconsidered to be Lewis - base. Cu+2 + 4NH3 < -------- > [ Cu (NH3)4 ]+2 In the aboveReaction Cu+2 acts as Lewis Acid and NH3 acts as Lewis - base. Cu SO4 .H2O + 4 NH3 ------------> [ Cu ( NH3)4 ]SO4.H2O In the aboveReaction CuSO4.H2O acts as LimitingReagent. In the aboveReaction Cu+2 acts as Lewis Acid and NH3 acts as Lewis - base. Cu SO4 .H2O + 4 NH3 ------------> [ Cu ( NH3)4 ]SO4.H2O In the aboveReaction CuSO4.H2O acts as LimitingReagent.