Homework #5: Isomers and Functional Groups

Which compound is an isomer of C₂H₅OC₂H₅?

• CH₃COOH

• 
  C₂H₅COOCH₃

• 
  C₃H₇COCH₃

• C₄H₉OH

Which formulas represent compounds that are isomers of each other?

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Given a formula representing a compound: Which structural formula represents an isomer of this compound?

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The two isomers of butane have different

• 
  formula masses

• empirical formulas

• molecular formulas

• structural formulas

Which two compounds are isomers of each other? Hint: Combine like terms

• CH₃CH₂COOH
  and

  CH₃COOCH₂CH₃

• CH₃CH₂CHO
  and
  CH₃COCH₃

• CH₃CHBrCH₃
  and
  CH₂BrCHBrCH₃

• CH₃CHOHCH₃
  and CH₃CHOHCH₂OH

Choose the three(3) true statements

• These are isomers

• These are not isomers

• They have similar chemical properties

• They have different chemical properties

• They have different physical properties

Select two (2) molecules below that are isomers.

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The compounds CH₃OCH₃ and CH₃CH₂OH are isomers of each other. These two compounds must have the same (Choose two)

• density

• reactivity

• melting point

• molecular formula

• chemical formula

Select two (2) molecules below that are isomers.

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The three isomers of pentane have different

• formula masses

• molecular formulas

• empirical formulas

• structural formulas