A.) The reaction of ammonia with copper(II) ions is an exampleof a Lewis acid-ba

Question

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.

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