Podcast
Questions and Answers
Which of the following is (2S,3R)-2,3-dihydroxybutanal?
Which of the following is (2S,3R)-2,3-dihydroxybutanal?
What is the percentage composition of enantiomers in the given mixture with an observed specific rotation of +11.2?
What is the percentage composition of enantiomers in the given mixture with an observed specific rotation of +11.2?
What type of isomers are molecules I and II?
What type of isomers are molecules I and II?
Which of the following pairs are enantiomers?
Which of the following pairs are enantiomers?
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Which statements about 1,1-dicyclopentanyl ethane are correct?
Which statements about 1,1-dicyclopentanyl ethane are correct?
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What is the IUPAC name for the compound represented?
What is the IUPAC name for the compound represented?
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How many stereoisomers can be drawn for 3,3,5-trimethylhept-1-en-6-yne?
How many stereoisomers can be drawn for 3,3,5-trimethylhept-1-en-6-yne?
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What is the IUPAC name of the given compound?
What is the IUPAC name of the given compound?
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Which of the following compounds is a meso compound?
Which of the following compounds is a meso compound?
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Which statement about the SN1 mechanism is incorrect?
Which statement about the SN1 mechanism is incorrect?
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Which feature distinguishes constitutional isomers from other types of isomers?
Which feature distinguishes constitutional isomers from other types of isomers?
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What is necessary for a compound to be classified as enantiomers?
What is necessary for a compound to be classified as enantiomers?
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What is the initial rate of the reaction given k = 2.0 x 10^-2 M^-1s^-1, [CH3Br] = 0.2 M, and [OH-] = 0.5 M?
What is the initial rate of the reaction given k = 2.0 x 10^-2 M^-1s^-1, [CH3Br] = 0.2 M, and [OH-] = 0.5 M?
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Which of the following molecules is NOT likely to be chiral?
Which of the following molecules is NOT likely to be chiral?
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In molecular structure representation, what designates a molecule as diastereomers?
In molecular structure representation, what designates a molecule as diastereomers?
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In which scenario do nucleophilicities not parallel basicities?
In which scenario do nucleophilicities not parallel basicities?
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Which statement about the nucleophiles I − and F − is correct in different solvent types?
Which statement about the nucleophiles I − and F − is correct in different solvent types?
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What is the correct order of leaving group ability in nucleophilic substitution reactions?
What is the correct order of leaving group ability in nucleophilic substitution reactions?
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Which compound arrangement depicts the correct order of increasing SN1 reaction rates?
Which compound arrangement depicts the correct order of increasing SN1 reaction rates?
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Which solvent favors an SN1 reaction over SN2?
Which solvent favors an SN1 reaction over SN2?
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What is the order of increasing SN2 reaction rates for the given compounds?
What is the order of increasing SN2 reaction rates for the given compounds?
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Which solvent would likely yield the fastest reaction rate for nucleophilic substitution?
Which solvent would likely yield the fastest reaction rate for nucleophilic substitution?
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Which statement correctly describes the relationship between solvent type and the SN2 mechanism?
Which statement correctly describes the relationship between solvent type and the SN2 mechanism?
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Study Notes
Instructions for Practice Exam
- Use a pen to write your name on the scantron and the exam.
- Match the names on both.
- Answer questions 1-18 on the scantron using a pencil.
- Answer questions 19-23 on the exam sheet, with the indicated point values.
- Transfer answers to the scantron in time.
- No extra time will be given for transferring answers.
- Plagiarism will result in a 0 grade and expulsion from the exam.
- No pages may be removed from the exam.
Periodic Table Information
- A periodic table is provided, with atomic numbers, symbols, and atomic weights.
- Separate sections for lanthanide and actinide series are included.
Relative Strength of Acids and Conjugate Bases
- A table of selected acids, their approximate pKa values, and their conjugate bases are listed.
Midterm III Practice Exam Questions (Pages 2-3)
- Question 1: I and II are constitutional isomers, enantiomers, identical, diastereomers, or not isomeric.
- Question 2: 1,1-dicyclopentanyl ethane does, or does not, have a chiral center.
- Question 3: Number of stereoisomers for 3,3,5-trimethylhept-1-en-6-yne.
- Question 4: Determine which molecules are meso compounds.
- Other specific questions on various organic chemistry topics including structural formulas, isomers, chiral centers, and reactions (SN1 and SN2).
Additional Questions (Pages 4-7)
- Question 5: Identify a specific compound (2S,3R)-2,3-dihydroxybutanal.
- Question 6: Determine percentages of isomers (R and S) in a mixture given specific rotation,
- Questions 7-18: Various organic chemistry questions on molecules, reactions, and stereochemistry.
- Questions 19-23: Additional organic chemistry problems that require reactions, formulas or structures.
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Description
Prepare for your Chemistry Midterm III with this practice exam! This quiz covers essential topics such as the periodic table, relative strength of acids and their conjugate bases, and various isomer classifications. Test your knowledge and boost your confidence before the big day.
