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25. Both cis-1,2,-dichloroethylene and However, the cis compound has a dipole boiling point of 60.3°C and the other ha AC::CI ci اغ: 6=4 = H H 26. Rank each of the following groups of the molecules (do not look at publish- a. NH3, He, CH3F, CH4 b. CH3Br, Ne, CH3OH, CH3C c. CH4, SiH4, GeH4, SnH4 27. Fluoromethane (CH3F) and methan- the boiling point of CH3OH is 65.15°C- boiling points.

25. Both cis-1,2,-dichloroethylene and However, the cis compound has a dipole boiling point of 60.3°C and the other ha AC::CI ci اغ: 6=4 = H H 26. Rank each of the following groups of the molecules (do not look at publish- a. NH3, He, CH3F, CH4 b. CH3Br, Ne, CH3OH, CH3C c. CH4, SiH4, GeH4, SnH4 27. Fluoromethane (CH3F) and methan- the boiling point of CH3OH is 65.15°C- boiling points.

Chemistry
Chemistry
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ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
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Can you help me with question 26? Plz and thank you
25. Both cis-1,2,-dichloroethylene and trans-1,2,-dichloroethylene have the same molecular formula: C₂H₂Cl₂. However, the cis compound has a dipole moment, while the trans compound does not. One of these species has a boiling point of 60.3°C and the other has a boiling point of 47.5°C. Which compound has which boiling point? :c Aci: [:ci H 6=4 DCI: trans has lower boiling point & Cis-1,2-dichoroethylene on the the higher BP. 26. Rank each of the following groups of substances in order of increasing boiling point based on the structures of the molecules (do not look at published references for the precise boiling points): a. NH3, He, CH3F, CH4 b. CH3Br, Ne, CH3OH, CH3CN c. CH4, SiH4, GeH4, SnH4 6 1 H H' C=C a. dipole trans 27. Fluoromethane (CH3F) and methanol (CH3OH) have approximately the same molecular weight. However, the boiling point of CH3OH is 65.15°C while the boiling point of CH3F is -78.4°C. Explain the difference in boiling points. 28. In each of the following groups of substances, indicate which has the highest boiling point. You should be able to reason this out without looking at a table of chemical boiling points. HC1 H3CCF3 H₂O CC14 NaCl
Transcribed Image Text:25. Both cis-1,2,-dichloroethylene and trans-1,2,-dichloroethylene have the same molecular formula: C₂H₂Cl₂. However, the cis compound has a dipole moment, while the trans compound does not. One of these species has a boiling point of 60.3°C and the other has a boiling point of 47.5°C. Which compound has which boiling point? :c Aci: [:ci H 6=4 DCI: trans has lower boiling point & Cis-1,2-dichoroethylene on the the higher BP. 26. Rank each of the following groups of substances in order of increasing boiling point based on the structures of the molecules (do not look at published references for the precise boiling points): a. NH3, He, CH3F, CH4 b. CH3Br, Ne, CH3OH, CH3CN c. CH4, SiH4, GeH4, SnH4 6 1 H H' C=C a. dipole trans 27. Fluoromethane (CH3F) and methanol (CH3OH) have approximately the same molecular weight. However, the boiling point of CH3OH is 65.15°C while the boiling point of CH3F is -78.4°C. Explain the difference in boiling points. 28. In each of the following groups of substances, indicate which has the highest boiling point. You should be able to reason this out without looking at a table of chemical boiling points. HC1 H3CCF3 H₂O CC14 NaCl
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