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3. In solution, sodium methoxide is a weaker base than sodium tert-butoxide because..... A. Methoxide has a hydrophobic methyl group that is smaller than the tert-butyl group, and therefore it is easier to be dissolved by water molecules. B. Its conjugate acid, methanol, is a weaker acid in solution than tert-butanol. C. Its conjugate acid, methanol, is a stronger acid in gas phase than tert-butanol. D. Tert-butyl has three methyl groups and methoxide only one, which makes more stable. 4.) The reason for the 1:2 molar ratio of methyl benzoate:phenyl magnesium bromide in a Grignard reaction to synthesize an alcohol. Is: A. Esters have low reactivity and excess Grignard reagent is needed to promote the reaction. B. It is a two step-reaction in which the intermediate is a ketone that is more reactive than the ester and will react with the Grignard reagent. C. The desired product is an alcohol and only with excess of Grignard the alcohol is obtained. D. All above are valid reasons.

3. In solution, sodium methoxide is a weaker base than sodium tert-butoxide because..... A. Methoxide has a hydrophobic methyl group that is smaller than the tert-butyl group, and therefore it is easier to be dissolved by water molecules. B. Its conjugate acid, methanol, is a weaker acid in solution than tert-butanol. C. Its conjugate acid, methanol, is a stronger acid in gas phase than tert-butanol. D. Tert-butyl has three methyl groups and methoxide only one, which makes more stable. 4.) The reason for the 1:2 molar ratio of methyl benzoate:phenyl magnesium bromide in a Grignard reaction to synthesize an alcohol. Is: A. Esters have low reactivity and excess Grignard reagent is needed to promote the reaction. B. It is a two step-reaction in which the intermediate is a ketone that is more reactive than the ester and will react with the Grignard reagent. C. The desired product is an alcohol and only with excess of Grignard the alcohol is obtained. D. All above are valid reasons.

Chemistry
Chemistry
10th Edition
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
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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3. In solution, sodium methoxide is a weaker base than sodium tert-butoxide because... A. Methoxide has a hydrophobic methyl group that is smaller than the tert-butyl group, and therefore it is easier to be dissolved by water molecules. B. Its conjugate acid, methanol, is a weaker acid in solution than tert-butanol. C. Its conjugate acid, methanol, is a stronger acid in gas phase than tert-butanol. D. Tert-butyl has three methyl groups and methoxide only one, which makes more stable. 4. The reason for the 1:2 molar ratio of methyl benzoate:phenyl magnesium bromide in a Grignard reaction to synthesize an alcohol. Is: A. Esters have low reactivity and excess Grignard reagent is needed to promote the reaction. B. It is a two step-reaction in which the intermediate is a ketone that is more reactive than the ester and will react with the Grignard reagent. C. The desired product is an alcohol and only with excess of Grignard the alcohol is obtained. D. All above are valid reasons.
Transcribed Image Text:3. In solution, sodium methoxide is a weaker base than sodium tert-butoxide because... A. Methoxide has a hydrophobic methyl group that is smaller than the tert-butyl group, and therefore it is easier to be dissolved by water molecules. B. Its conjugate acid, methanol, is a weaker acid in solution than tert-butanol. C. Its conjugate acid, methanol, is a stronger acid in gas phase than tert-butanol. D. Tert-butyl has three methyl groups and methoxide only one, which makes more stable. 4. The reason for the 1:2 molar ratio of methyl benzoate:phenyl magnesium bromide in a Grignard reaction to synthesize an alcohol. Is: A. Esters have low reactivity and excess Grignard reagent is needed to promote the reaction. B. It is a two step-reaction in which the intermediate is a ketone that is more reactive than the ester and will react with the Grignard reagent. C. The desired product is an alcohol and only with excess of Grignard the alcohol is obtained. D. All above are valid reasons.
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