Homework Answers
A. SN2 reaction occurs the fastest in polar aprotic solvent.
If the energy barrier is increased, that means the reaction is occurring slowly. The reaction will occur slowly in polar protic solvent as the nucleophile will be solvated.
Among the given options, option E is a polar protic solvent because it releases H+ to the solution.
Hence the correct answer is option E.
B. The least electronegative here is iodine. So I- will readily donate its electron pair to the substrate. Also in polar protic solvent, it will be least solvated. So it will be the strongest nucleophile.
Hence, option E is correct.
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A. Identify the solvent that most raises the barrier to formation (AG*) in an Sn2 reaction....
Sul B Sx2 Either Syl or S2 None of these D) 103) What substitution reaction mechanism...
Sul B Sx2 Either Syl or S2 None of these D) 103) What substitution reaction mechanism is most likely for the following conversion? A) SI SN2 Either Snl or S2 None of these 105) Which of the following is a strong nucleophile? OH H0 A) B) C) D) E) CH OH ΝΗ, All of these 108) Which of the following is a weakest nucleophile in a polar protic solvent? A) F B) CH Br D) E) All of these 111)...
HWS 5: Due 10/30/2019 15 points total SN1, SN2, Elimination pt 1 1. (10 pts) For...
HWS 5: Due 10/30/2019 15 points total SN1, SN2, Elimination pt 1 1. (10 pts) For the following reactions: a. Label the Nucleophile (Nu) and whether it is strong or weak b. Label the Electrophile (E) and whether it is primary, secondary, or tertiary and circle the leaving group C. Label the Solvent and whether it is polar protic or polar aprotic d. Categorize each as preferring SN1, Preferring SN2, or could do either e. Draw the product of the...
please explain!! 3 e) Which solvent is a polar protic solvent? a) ether c) ethanol b)...
please explain!!
3 e) Which solvent is a polar protic solvent? a) ether c) ethanol b) dimethylformamide d) hexane Circle the correct name for the molecule shown below. Br (trans)-3-bromo-4-methyl-4-heptene (E3-bromo-4-methyl-3-heptene (Z)3-bromo-4-methyl-3-heptene (cis)-3-bromo-4-methyl-3-heptene g) Circle the reaction that would have the fastest rate. NaSH DMF SH NaOH OH B DMF NaSH DMF Br SH NaOH Br он DMF h) Circle the strongest nucleophile in methanol (CH,OH) F Br
14. SNİ Reactivity in a Protic Solvent: CI (D) Br 15. SN2 Reactivity in an Aprotic...
14. SNİ Reactivity in a Protic Solvent: CI (D) Br 15. SN2 Reactivity in an Aprotic Solvent: Br 16. Electrophylic Substitution Reactivity (B) c C) (D) Br- но 17. Polar Solvent он 18. Priority Group in Stereochemistry: (A) -NO2 (C) SH (D)) -SO,H (B) -OH 19. The Strength of Oxidizer: (A) PCC (B) H2SO4 (C) KMno,/H,SO (D) HNO
For the chemical reaction answer the following questions: 1. Is the mechanism Sn1 or Sn2? 2....
For the chemical reaction answer the following questions:
1. Is the mechanism Sn1 or Sn2?
2. What kind of substrate reacts in the following reaction? (2 °
, 2 ° allylic , 3 ° )
3. Is the role of the alkyl halide reactant an acid, base,
electrophile, nucleophile , or both a nucleophile and base?
4. Is the role of the reagent KI an acid, base, electrophile,
nucleophile , or both a nucleophile and base?
5. What is the...
Consider the SN2 reaction of butyl bromide with hydroxide ion , Assuming no other changes, what...
Consider the SN2 reaction of butyl bromide with hydroxide ion , Assuming no other changes, what effect on the reaction rate would result from simultaneously doubling the concentrations of both butyl bromide and hydroxyl ion No effect (B)It would double the rate (C)it would increase the rate six times (D) It would increase the rate four times. 2. Which alky halide would you expect to undergo SN1 hydrolysis most rapidly? (A) (CH3)3C-I (B) (CH3)3C-Br (C) (CH3)3C-Cl (D) (CH3)3C-F 3....
Chem 2010 Substitution Problem Set Name 1. Choose the appropriate answer for each of the following...
Chem 2010 Substitution Problem Set Name 1. Choose the appropriate answer for each of the following (circle your answer): the strongest base: i c F the strongest acid: CHOH H20 NH3 the worst nucleophile in protic, polar solvents: 1 F the slowest in an SN2 reaction: (CH3)2CHCH2Br CHI CH3CH2CH2Br the best solvent for an Snl reaction: acetone water pentane the worst nucleophile: OH "Сн, NH the strongest base NH H20 F the best nucleophile: OH CH3 NH the best solvent...
Which SN2 reaction of each pair would you expect to take place more rapidly in polar protic solvent Aapidhy Au a n ote...
Which SN2 reaction of each pair would you expect to take place
more rapidly in polar protic solvent
Aapidhy Au a n ote selmat ? a) n-PrCl aoo»?r-o- +a° vs R-Pr-O-Et Hd! -rCIEtoH Pr-o-Et t cP b) A-Prcit oo. vS. d)n- Br 4.0 M) * Heo' APia-e N-r C4-0M) eo(20M) oH
+ Fit to page Page view 1. (10 pts) For the following reactions: a. Label the...
+ Fit to page Page view 1. (10 pts) For the following reactions: a. Label the Nucleophile (Nu) and whether it is strong or weak b. Label the Electrophile (E) and whether it is primary, secondary, or tertiary and circle the leaving group c. Label the Solvent and whether it is polar protic or polar aprotic d. Categorize each as preferring SN1, Preferring SN2, or could do either e Draw the product of the reaction, based upon your categorization, remember...
Arrange the following species in order of increasing nucleophile strength in an SN2 reaction. H: CH3NHCH3OH...
Arrange the following species in order of increasing nucleophile strength in an SN2 reaction. H: CH3NHCH3OH a. (Weakest nucleophile) H:1- < CH3OH < CH3NH- (Strongest Nucleophile) C b. (Weakest nucleophile) CH3NH1- < CH3OH < H:1- (Strongest Nucleophile) (Weakest nucleophile) CH3OH <H:1- < CH3NHL- (Strongest Nucleophile) d. (Weakest nucleophile) CH3NH1 <H:1- < CH3OH (Strongest Nucleophile) e. (Weakest nucleophile) H:1- < CH3NH1- < CH3OH (Strongest Nucleophile) (Weakest nucleophile) CH3OH < CH3NH2- < H:1- (Strongest Nucleophile) f.
Sul B Sx2 Either Syl or S2 None of these D) 103) What substitution reaction mechanism is most likely for the following conversion? A) SI SN2 Either Snl or S2 None of these 105) Which of the following is a strong nucleophile? OH H0 A) B) C) D) E) CH OH ΝΗ, All of these 108) Which of the following is a weakest nucleophile in a polar protic solvent? A) F B) CH Br D) E) All of these 111)...
HWS 5: Due 10/30/2019 15 points total SN1, SN2, Elimination pt 1 1. (10 pts) For the following reactions: a. Label the Nucleophile (Nu) and whether it is strong or weak b. Label the Electrophile (E) and whether it is primary, secondary, or tertiary and circle the leaving group C. Label the Solvent and whether it is polar protic or polar aprotic d. Categorize each as preferring SN1, Preferring SN2, or could do either e. Draw the product of the...
please explain!!
3 e) Which solvent is a polar protic solvent? a) ether c) ethanol b) dimethylformamide d) hexane Circle the correct name for the molecule shown below. Br (trans)-3-bromo-4-methyl-4-heptene (E3-bromo-4-methyl-3-heptene (Z)3-bromo-4-methyl-3-heptene (cis)-3-bromo-4-methyl-3-heptene g) Circle the reaction that would have the fastest rate. NaSH DMF SH NaOH OH B DMF NaSH DMF Br SH NaOH Br он DMF h) Circle the strongest nucleophile in methanol (CH,OH) F Br
14. SNİ Reactivity in a Protic Solvent: CI (D) Br 15. SN2 Reactivity in an Aprotic Solvent: Br 16. Electrophylic Substitution Reactivity (B) c C) (D) Br- но 17. Polar Solvent он 18. Priority Group in Stereochemistry: (A) -NO2 (C) SH (D)) -SO,H (B) -OH 19. The Strength of Oxidizer: (A) PCC (B) H2SO4 (C) KMno,/H,SO (D) HNO
For the chemical reaction answer the following questions:
1. Is the mechanism Sn1 or Sn2?
2. What kind of substrate reacts in the following reaction? (2 °
, 2 ° allylic , 3 ° )
3. Is the role of the alkyl halide reactant an acid, base,
electrophile, nucleophile , or both a nucleophile and base?
4. Is the role of the reagent KI an acid, base, electrophile,
nucleophile , or both a nucleophile and base?
5. What is the...
Chem 2010 Substitution Problem Set Name 1. Choose the appropriate answer for each of the following (circle your answer): the strongest base: i c F the strongest acid: CHOH H20 NH3 the worst nucleophile in protic, polar solvents: 1 F the slowest in an SN2 reaction: (CH3)2CHCH2Br CHI CH3CH2CH2Br the best solvent for an Snl reaction: acetone water pentane the worst nucleophile: OH "Сн, NH the strongest base NH H20 F the best nucleophile: OH CH3 NH the best solvent...
Which SN2 reaction of each pair would you expect to take place
more rapidly in polar protic solvent
Aapidhy Au a n ote selmat ? a) n-PrCl aoo»?r-o- +a° vs R-Pr-O-Et Hd! -rCIEtoH Pr-o-Et t cP b) A-Prcit oo. vS. d)n- Br 4.0 M) * Heo' APia-e N-r C4-0M) eo(20M) oH
+ Fit to page Page view 1. (10 pts) For the following reactions: a. Label the Nucleophile (Nu) and whether it is strong or weak b. Label the Electrophile (E) and whether it is primary, secondary, or tertiary and circle the leaving group c. Label the Solvent and whether it is polar protic or polar aprotic d. Categorize each as preferring SN1, Preferring SN2, or could do either e Draw the product of the reaction, based upon your categorization, remember...
Arrange the following species in order of increasing nucleophile strength in an SN2 reaction. H: CH3NHCH3OH a. (Weakest nucleophile) H:1- < CH3OH < CH3NH- (Strongest Nucleophile) C b. (Weakest nucleophile) CH3NH1- < CH3OH < H:1- (Strongest Nucleophile) (Weakest nucleophile) CH3OH <H:1- < CH3NHL- (Strongest Nucleophile) d. (Weakest nucleophile) CH3NH1 <H:1- < CH3OH (Strongest Nucleophile) e. (Weakest nucleophile) H:1- < CH3NH1- < CH3OH (Strongest Nucleophile) (Weakest nucleophile) CH3OH < CH3NH2- < H:1- (Strongest Nucleophile) f.
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