CHM 1321 Study Guide - Midterm Guide: Alkane Stereochemistry, Leaving Group, Newman Projection

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CHM 1321 Full Course Notes

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Mid term 2 version b answers: name the following compounds (6 points): a) b) Compare the two hydrogens shown in this compound and circle the one that is more acidic. (1 point) H: draw the two possible conjugate bases (2 points). H: for your answer above, identify which of the conjugate bases is more stable and briefly justify your answer (4 points) compound on the left resonance is possible. Compare the two nucleophiles shown in this compound and circle the one that is more resonance stabilizes conjugate bases by spreading out the charge. Hs: justify your answer for part a (4 points) Sulfur is lower in periodic table than o. Electrons in sulfur are held less tightly that in o. Sulfur is a better electron donor (nucleophile) than o: consider the following reaction. Br: write a detailed mechanism for this transformation (8 points). 1 (b) draw the reaction co-ordinate diagram for the process shown above.

Related Questions

Why do ionic compounds dissolve well in water? Select all that are true.

Question 5 options:

Because water and ionic compounds are both polar

Water molecules have partial charges that attract the ions in the solid compound, causing it to dissociate into separated ions

Because organic compounds are nonpolar

Water molecules can surround an ion, and neutralize the ion's charge using either it's partial positive or negative side.

The individual ions are solvated by water molecules which stabilizes the ions

2. Which compound is soluble in ether but not soluble in aqueous sodium hydroxide?

Question 2 options:

	ArOH
	Ar
	ArCOOH

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When you have a two-layer mixture of water and tert-butyl methyl ether, what physical property of these liquids assures you that the ether is the top layer?

Question 4 options:

low density was my answer was

You perform each extraction twice, first with 1 mL and second with 0.15 mL. Why is the second extraction necessary?

Question 8 options:

	several small extractions is better than one large one
	to remove any orgnaic material contaninating tube 2
	to remove any remaining neutral compound

7. Which of the following reactions is not favorable?

Question 7 options:

	ArCOOH + NaOH â ArCOO^-Na⁺ + H₂O
	ArOH + NaHCO₃ â ArO^-Na⁺ + CO₂ + H₂O
	ArCOOH + NaHCO₃ â ArCOO^-Na⁺ + CO₂ + H₂O

9.Why is phenol more acidic than an aliphatic alcohol?

Question 9 options:

	Its conjugates baseâs negative charge is localized on the oxygen
	Phenols have a stronger O-H bond
	Only the phenol can form hydrogen bonds
	Its conjugated base is stabilized by resonance

Which aqueous base reacts with a carboxylic acid but not with phenol? Why?

Question 10 options:

	Sodium bicarbonate, it is a weaker base and will only react with strong acids
	Sodium hydroxide, it is a strong base and will only react with strong acids
	Sodium bicarbonate, it is a weak base and will only react with weak acids
	Sodium hydroxide, it is a strong base and will only react with weak acids

CHM 1321 Study Guide - Midterm Guide: Alkane Stereochemistry, Leaving Group, Newman Projection

CHM 1321 Full Course Notes

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