(b) Neat Et2Zn is pyrophoric and spontaneously ignites in air. Can you explain why this would happen? NASH University

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Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
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Chapter1: Chemical Foundations
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Question 8
(a) Neat diethylzinc, Et₂Zn, is a liquid with a melting point of -28°C while EtZnBr, EtLi, and Et2Mg
are all solids at room temperature.
Provide a possible explanation for this.
(b) Neat Et2Zn is pyrophoric and spontaneously ignites in air. Can you explain why this would
happen?
(c) In contrast, the heavy metal organometallic equivalents Et₂Hg and Et4Pb, while both liquids, are
completely stable in air and water. Can you provide a reason why this is the case?
Transcribed Image Text:Question 8 (a) Neat diethylzinc, Et₂Zn, is a liquid with a melting point of -28°C while EtZnBr, EtLi, and Et2Mg are all solids at room temperature. Provide a possible explanation for this. (b) Neat Et2Zn is pyrophoric and spontaneously ignites in air. Can you explain why this would happen? (c) In contrast, the heavy metal organometallic equivalents Et₂Hg and Et4Pb, while both liquids, are completely stable in air and water. Can you provide a reason why this is the case?
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