Which of the following best represents the shape of a sp3 hybrid orbital of carbon?

A) 1 B) 2 C) 3 D) 4 A) 1 B) 2 C) 3 D) 4 C

Instructions: Consider the two structures below to answer the following question. CHS1U1B13S1U1B0CHS1U1B12S1U1B0OH CHS1U1B13S1U1B0OCHS1U1B13S1U1B0 -In the two structures shown below, what do the positions labeled with the arrow have in common?

A) the same type of hybridization on the carbon atom B) the same geometry around the carbon atom C) the same number of hydrogen atoms bonded to the carbon atom D) both carbon atoms are involved in a $\pi$ bond A) the same type of hybridization on the carbon atom B) the same geometry around the carbon atom C) the same number of hydrogen atoms bonded to the carbon atom D) both carbon atoms are involved in a $\pi$ bond

Instructions: Consider the two structures below to answer the following question. CHS1U1B13S1U1B0CHS1U1B12S1U1B0OH CHS1U1B13S1U1B0OCHS1U1B13S1U1B0 -Refer to instructions. Which of the following correctly describes the structure of these compounds?

A) All carbon atoms are sp3 hybridized. B) All of the bonds are sigma bonds. C) Each oxygen atom has two nonbonding pairs of electrons. D) The bond angle around each oxygen atom is ideally about 109.5$\degree$. E) All of these A) All carbon atoms are sp3 hybridized. B) All of the bonds are sigma bonds. C) Each oxygen atom has two nonbonding pairs of electrons. D) The bond angle around each oxygen atom is ideally about 109.5$\degree$. E) All of these

Exam 1: Structure and Bonding:acids and Bases

Instructions: Refer to the following equation to answer the question(s) below. -Refer to instructions. Will this reaction take place as written in the forward direction? Explain.

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Question 1

Correct Answer:

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No, the reaction will not take place as written because the strongest acid reacts with the strongest base to give the weakest conjugate acid and the weakest conjugate base. D (pK_a = 15.7) is a stronger acid than A (pK_a = 18).

Write an equation for the reaction of boron trifluoride, an important reagent in organic chemistry, with trimethylamine. Represent the movement of electrons with a curved arrow, and show the formal charges on the atoms in the product.

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Question 2

Correct Answer:

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Which of the following best represents the shape of a sp³ hybrid orbital of carbon?

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(Multiple Choice)

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Question 3

Correct Answer:

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How many total valence electrons are represented in the following electron configuration? 1s²2s²2p_x² 2p_y² 2p_z¹ or 1s²2s²2p⁵

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Question 4

Circle the Lewis bases in the group of compounds below.

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Question 5

How many nonbonding electron pairs are in the structure shown below?

(Multiple Choice)

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Question 6

Instructions: Propose a structure for a molecule that meets the following description. -Refer to instructions. Contains only two sp³ hybridized carbons and two sp hybridized carbons.

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Question 7

Instructions: Consider the reaction below to answer the following question. -Refer to instructions. Using the curved arrow formalism, show the flow of electrons for this reaction.

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Question 8

Instructions: Consider the two structures below to answer the following question. CH₃CH₂OH CH₃OCH₃ -In the two structures shown below, what do the positions labeled with the arrow have in common?

(Multiple Choice)

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Question 9

Which is the strongest base (pK_a values given for conjugate acid)?

(Multiple Choice)

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Question 10

In drawing the Lewis structure for an organic compound, the carbon atoms should always be shown with

(Multiple Choice)

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Question 11

Instructions: Use the convention $\delta$ / $\delta$ + and the crossed arrow $Instructions: Use the convention \delta / \delta + and the crossed arrow to show the direction of the expected polarity of the indicated bonds in the following compound(s). -Refer to instructions. A C-O bond in tetrahydrofuran,$ to show the direction of the expected polarity of the indicated bonds in the following compound(s). -Refer to instructions. A C-O bond in tetrahydrofuran, $Instructions: Use the convention \delta / \delta + and the crossed arrow to show the direction of the expected polarity of the indicated bonds in the following compound(s). -Refer to instructions. A C-O bond in tetrahydrofuran,$

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Question 12

The molecular formula C₂H₄O can be converted into three-line bond (Kekulé) structures that are consistent with valence rules. Which one of the following Kekulé structures is not consistent with valence rules?

(Multiple Choice)

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Question 13

Use the curved arrow method to show the electron movement, and label the acid, base, conjugate acid, and conjugate base.

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Question 14

Which of the following statements is not true?

(Multiple Choice)

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Question 15

Consider the structure of acetic acid shown below. In the electrostatic potential map of acetic acid, in which of the following bonds would the terminal atom appear as the deepest shade of red?

(Multiple Choice)

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Question 16

Instructions: Consider the two structures below to answer the following question. CH₃CH₂OH CH₃OCH₃ -Refer to instructions. Which of the following correctly describes the structure of these compounds?

(Multiple Choice)

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Question 17

Instructions: Indole is pleasant smelling in highly dilute solutions and has been used in perfumery. Use the structure of indole, below, to answer the following question(s). -Refer to instructions. Indole can function as a Brønsted-Lowry acid in the presence of strong bases. Formulate a reaction, using a generic base (:B^-), showing electron flow with arrows, that demonstrates this reactivity of indole.

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Question 18

The following shows an intermediate used in a Grignard synthesis. Which atom will inductively donate electrons in this species?

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Question 19

Instructions: Label the acid and base in each reaction below. -Label:

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Question 20

Showing 1 - 20 of 41

Instructions: Refer to the following equation to answer the question(s) below. -Refer to instructions. Will this reaction take place as written in the forward direction? Explain.

Write an equation for the reaction of boron trifluoride, an important reagent in organic chemistry, with trimethylamine. Represent the movement of electrons with a curved arrow, and show the formal charges on the atoms in the product.

Which of the following best represents the shape of a sp³ hybrid orbital of carbon?

How many total valence electrons are represented in the following electron configuration? 1s²2s²2p_x² 2p_y² 2p_z¹ or 1s²2s²2p⁵

Circle the Lewis bases in the group of compounds below.

How many nonbonding electron pairs are in the structure shown below?

Instructions: Propose a structure for a molecule that meets the following description. -Refer to instructions. Contains only two sp³ hybridized carbons and two sp hybridized carbons.

Instructions: Consider the reaction below to answer the following question. -Refer to instructions. Using the curved arrow formalism, show the flow of electrons for this reaction.

Instructions: Consider the two structures below to answer the following question. CH₃CH₂OH CH₃OCH₃ -In the two structures shown below, what do the positions labeled with the arrow have in common?

Which is the strongest base (pK_a values given for conjugate acid)?

In drawing the Lewis structure for an organic compound, the carbon atoms should always be shown with

The molecular formula C₂H₄O can be converted into three-line bond (Kekulé) structures that are consistent with valence rules. Which one of the following Kekulé structures is not consistent with valence rules?

Use the curved arrow method to show the electron movement, and label the acid, base, conjugate acid, and conjugate base.

Which of the following statements is not true?

Consider the structure of acetic acid shown below. In the electrostatic potential map of acetic acid, in which of the following bonds would the terminal atom appear as the deepest shade of red?

Instructions: Consider the two structures below to answer the following question. CH₃CH₂OH CH₃OCH₃ -Refer to instructions. Which of the following correctly describes the structure of these compounds?

The following shows an intermediate used in a Grignard synthesis. Which atom will inductively donate electrons in this species?

Instructions: Label the acid and base in each reaction below. -Label:

Alkanes: the Nature of Organic Compounds

Alkenes and Alkynes: the Nature of Organic Reactions

Reactions of Alkenes and Alkynes

Aromatic Compounds

Sterechemistry at Tetrahedral Centers

Organohalides: Nucleophilic Substitutions and Eliminations

Alcohols, Phenols, Ethers, and Their Sulfur Analogs

Aldehydes and Ketones: Nucleophilic Addition Reactions

Carboxylic Acids and Derivatives: Nucleophilic Acyl Substitution Reactions

Carbonyl Alpha-Substitution Reactions and Condensation Reactions

Amines

Structure Determination

Biomolecules: Carbohydrates

Biomolecules: Amino Acids, Peptides, and Proteins

Biomolecules: Lipids and Nucleic Acids

The Organic Chemistry of Metabolic Pathways

Filters

Exam 1: Structure and Bonding:acids and Bases

Instructions: Refer to the following equation to answer the question(s) below. -Refer to instructions. Will this reaction take place as written in the forward direction? Explain.

Write an equation for the reaction of boron trifluoride, an important reagent in organic chemistry, with trimethylamine. Represent the movement of electrons with a curved arrow, and show the formal charges on the atoms in the product.

Which of the following best represents the shape of a sp3 hybrid orbital of carbon?

How many total valence electrons are represented in the following electron configuration? 1s22s22px2 2py2 2pz1 or 1s22s22p5

Circle the Lewis bases in the group of compounds below.

How many nonbonding electron pairs are in the structure shown below?

Instructions: Propose a structure for a molecule that meets the following description. -Refer to instructions. Contains only two sp3 hybridized carbons and two sp hybridized carbons.

Instructions: Consider the reaction below to answer the following question. -Refer to instructions. Using the curved arrow formalism, show the flow of electrons for this reaction.

Instructions: Consider the two structures below to answer the following question. CH3CH2OH CH3OCH3 -In the two structures shown below, what do the positions labeled with the arrow have in common?

Which is the strongest base (pKa values given for conjugate acid)?

In drawing the Lewis structure for an organic compound, the carbon atoms should always be shown with

Instructions: Use the convention δ\deltaδ / δ\deltaδ + and the crossed arrow to show the direction of the expected polarity of the indicated bonds in the following compound(s). -Refer to instructions. A C-O bond in tetrahydrofuran,

The molecular formula C2H4O can be converted into three-line bond (Kekulé) structures that are consistent with valence rules. Which one of the following Kekulé structures is not consistent with valence rules?

Use the curved arrow method to show the electron movement, and label the acid, base, conjugate acid, and conjugate base.

Which of the following statements is not true?

Consider the structure of acetic acid shown below. In the electrostatic potential map of acetic acid, in which of the following bonds would the terminal atom appear as the deepest shade of red?

Instructions: Consider the two structures below to answer the following question. CH3CH2OH CH3OCH3 -Refer to instructions. Which of the following correctly describes the structure of these compounds?

The following shows an intermediate used in a Grignard synthesis. Which atom will inductively donate electrons in this species?

Instructions: Label the acid and base in each reaction below. -Label:

Alkanes: the Nature of Organic Compounds

Alkenes and Alkynes: the Nature of Organic Reactions

Reactions of Alkenes and Alkynes

Aromatic Compounds

Sterechemistry at Tetrahedral Centers

Organohalides: Nucleophilic Substitutions and Eliminations

Alcohols, Phenols, Ethers, and Their Sulfur Analogs

Aldehydes and Ketones: Nucleophilic Addition Reactions

Carboxylic Acids and Derivatives: Nucleophilic Acyl Substitution Reactions

Carbonyl Alpha-Substitution Reactions and Condensation Reactions

Amines

Structure Determination

Biomolecules: Carbohydrates

Biomolecules: Amino Acids, Peptides, and Proteins

Biomolecules: Lipids and Nucleic Acids

The Organic Chemistry of Metabolic Pathways

Filters

Which of the following best represents the shape of a sp³ hybrid orbital of carbon?

How many total valence electrons are represented in the following electron configuration? 1s²2s²2p_x² 2p_y² 2p_z¹ or 1s²2s²2p⁵

Instructions: Propose a structure for a molecule that meets the following description. -Refer to instructions. Contains only two sp³ hybridized carbons and two sp hybridized carbons.

Instructions: Consider the two structures below to answer the following question. CH₃CH₂OH CH₃OCH₃ -In the two structures shown below, what do the positions labeled with the arrow have in common?

Which is the strongest base (pK_a values given for conjugate acid)?

The molecular formula C₂H₄O can be converted into three-line bond (Kekulé) structures that are consistent with valence rules. Which one of the following Kekulé structures is not consistent with valence rules?

Instructions: Consider the two structures below to answer the following question. CH₃CH₂OH CH₃OCH₃ -Refer to instructions. Which of the following correctly describes the structure of these compounds?