Homework Answers
Answer:-
t-buytl carbocation will have = sp2
because it has only three bond pairs
and there is no lone pairs as it forms cation by losing one election fri valence shell . So it has only three electrons in ots valence shell . So it forms only three bond pairs.
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(6 points total) What is the hybridization of a tert-butyl carbocation (circle your answer below). Base...
answer all please. 23. What is the equation for the rate of formation of tert-butyl alcohol...
answer all please.
23. What is the equation for the rate of formation of tert-butyl alcohol from the reaction of tert-butyl bromide (t-BuBr) with water by an Syl mechanism? A) Rate -k [t-BuBr] B) Rate = k [t-BuBr] [H,O] C) Rate k [H2O D) Rate k [t-BuBr] 24. Which of the following statements related to Ssl reactions is not true? A) The SN1 reaction can be described as a heterolytic bond cleavage followed by nucleophilic attack. B) Carbocations are electrophilic....
QUESTION #10. WHY IS THE ANSWER B? MECHANISM PLEASE Tab Caps Lock 0. Which of the...
QUESTION #10. WHY IS THE ANSWER B? MECHANISM PLEASE
Tab Caps Lock 0. Which of the following compounds would NOT give a tert-butyl alcohol upon reaction with excess methylmagnesium bromide? 0 CI H3C 11. CH,CH,CH,CH,OH is the product (after acidic workup) of propylmagnesium bromide and 0 CH CH2 OH H C E SENT 12. The product of the following reaction is: CF FO list of d cn com (CH)2C C(CH3) CHCl,Koc(cHs)s A. 1,1-dichloro-2,2-dimethylpentane. B. 1,1-dimethylcyclopropane. C. 1,1-dichloro-2,2,3,3-tetramethylcyclopropane. D. 2,2-dichloro-3.3-dimethylbutane. not...
Please and all three questions and explain how you got to your answer. I'm really lost...
Please and all three questions
and explain how you got to your answer. I'm really lost and I have
an exam in 7 days! A step by step would be appreciated.
1.(4 points) Predict the order of radical stability (1 = most stable; 4 = least stable). 2. (4 points) Based on the pka data circle the molecule that is most acidic. Explain your answer. RE-H R-C-R RH pka 25 pka 45 pka 50 3. (4 points) Briefly explain why...
IV) Acid/Base Reaction - Answer the next few questions about Molecule B, shown below. a) Circle...
IV) Acid/Base Reaction - Answer the next few questions about Molecule B, shown below. a) Circle the terms that correctly describe the molecule. H-bond acceptor dextrorotatory contains ketone racemic has enantiomer H-bond donor Molecule B [a] = -27.8° optically active contains aldehyde levorotatory b) Molecule B can react with another molecule in an acid/base reaction (shown below). olgan In the spaces provided, please do the following: i) Draw the structure of the missing molecule in the space provided. ii) Circle...
1) A chemical reaction and a table of bond dissociation energies are shown below. H3C H...
1) A chemical reaction and a table of bond dissociation energies are shown below. H3C H НАС + H2O HOZCHz H2C H acid HzC catalyst Bond BDE (KJ/mol) Bond BDE (KJ/mol) Csp3-H 410 Csp2-Csp2 sigma 418 Csp2-H 427 Csp2-Csp2 pi 264 Csp-H 523 C-O sigma 355 Csp3-Csp3 368 C-O pi 261 Csp2-Csp3 418 HO-H 460 a) Calculate the enthalpy change (AH) for the reaction. Remember to include the sign and units. b) If you touched the outside of the reaction...
Circle the one correct answer for our pluvieill. (100) A. The reaction of an alkene with...
Circle the one correct answer for our pluvieill. (100) A. The reaction of an alkene with chloroform (CHCl3) in the presence of a strong base, such as potassium tert-butoxide (KOC(CH3)3) gives a: a) epoxide b) aldehyde c) alcohold) cycloalkanee ) ketone B. Which of the following would give formaldehyde (H2C=0) upon treatment with aqueous periodic acid (HIO)? a) а) CH2OH b) d) н -он HO-LH CH OH CH OH Но HOH CH OH CH OCH3 Ε0 OH CH OH FO...
please help with these chemistry problems 2. (5 points) Why does this reaction occur via a...
please help with these chemistry problems
2. (5 points) Why does this reaction occur via a Si1 pathway and not via a Si2 pathway? 3. (5 points) In general are SN1 reactions stereospecific? Why or why not? 2 5.(5 points) Why do carbon substituents stabilize a carbocation and destabilize a carbanion? 6. (5 points) The mass spec of your product has a base peak at 77 draw what this fragment looks like. What would explain the peak at 79. (you...
How do I answer questions in number 6 please, Thanks 6) (12 points) Draw mechanisms for...
How do I answer questions in number 6 please, Thanks
6) (12 points) Draw mechanisms for the following transformations +HC HO Br2 + HBr H3C H3 hv H3C rパ HO Br H2O + HBr c) (Hint for Se: Doubling the concentration of water has no effect on the rate.) 7.) (4 points) For the reaction in question 6b,t below is seen product, and what product ratio of question 6b is in fact the major prod stabilities of intermediates involved in...
please circle answer Shown below is the reaction between a nitrile and a Grignard reagent. What...
please circle answer
Shown below is the reaction between a nitrile and a Grignard reagent. What would be the first step in the mechanism? CN - 1. CH3MgBr 2. H307 Nucleophile attacks nitrile carbon Hydrolysis of the nitrile Protonate the nitrile nitrogen Base Beprotonates the alpha-carbon An unknown compound shows an infrared absorption around 2250 cm (medium intensity). What structural fragment could be causing this absorption? carbonyl OOH nitrile N-H NH 1. (CH3)2CHCOCI, pyridine 2. LIAIH4 3. H2O Product tertiary...
Multiple Choice (5 points each, 30 points total). Circle the one BEST answer for each problem....
Multiple Choice (5 points each, 30 points total). Circle the one BEST answer for each problem. 1. Which of the following tertiary alcohols cannot be prepared using the reaction of an ester with excess (2 equivalents) Grignard reagent? . Which of the following esters undergoes hydrolysis in basic conditions (saponification) most readily? . Which compound will be essentially unreactive with excess 1-butanol in acid-catalyzed conditions (upon moderate heating if required)? . Which of the following is the best method for...
answer all please.
23. What is the equation for the rate of formation of tert-butyl alcohol from the reaction of tert-butyl bromide (t-BuBr) with water by an Syl mechanism? A) Rate -k [t-BuBr] B) Rate = k [t-BuBr] [H,O] C) Rate k [H2O D) Rate k [t-BuBr] 24. Which of the following statements related to Ssl reactions is not true? A) The SN1 reaction can be described as a heterolytic bond cleavage followed by nucleophilic attack. B) Carbocations are electrophilic....
QUESTION #10. WHY IS THE ANSWER B? MECHANISM PLEASE
Tab Caps Lock 0. Which of the following compounds would NOT give a tert-butyl alcohol upon reaction with excess methylmagnesium bromide? 0 CI H3C 11. CH,CH,CH,CH,OH is the product (after acidic workup) of propylmagnesium bromide and 0 CH CH2 OH H C E SENT 12. The product of the following reaction is: CF FO list of d cn com (CH)2C C(CH3) CHCl,Koc(cHs)s A. 1,1-dichloro-2,2-dimethylpentane. B. 1,1-dimethylcyclopropane. C. 1,1-dichloro-2,2,3,3-tetramethylcyclopropane. D. 2,2-dichloro-3.3-dimethylbutane. not...
Please and all three questions
and explain how you got to your answer. I'm really lost and I have
an exam in 7 days! A step by step would be appreciated.
1.(4 points) Predict the order of radical stability (1 = most stable; 4 = least stable). 2. (4 points) Based on the pka data circle the molecule that is most acidic. Explain your answer. RE-H R-C-R RH pka 25 pka 45 pka 50 3. (4 points) Briefly explain why...
IV) Acid/Base Reaction - Answer the next few questions about Molecule B, shown below. a) Circle the terms that correctly describe the molecule. H-bond acceptor dextrorotatory contains ketone racemic has enantiomer H-bond donor Molecule B [a] = -27.8° optically active contains aldehyde levorotatory b) Molecule B can react with another molecule in an acid/base reaction (shown below). olgan In the spaces provided, please do the following: i) Draw the structure of the missing molecule in the space provided. ii) Circle...
1) A chemical reaction and a table of bond dissociation energies are shown below. H3C H НАС + H2O HOZCHz H2C H acid HzC catalyst Bond BDE (KJ/mol) Bond BDE (KJ/mol) Csp3-H 410 Csp2-Csp2 sigma 418 Csp2-H 427 Csp2-Csp2 pi 264 Csp-H 523 C-O sigma 355 Csp3-Csp3 368 C-O pi 261 Csp2-Csp3 418 HO-H 460 a) Calculate the enthalpy change (AH) for the reaction. Remember to include the sign and units. b) If you touched the outside of the reaction...
Circle the one correct answer for our pluvieill. (100) A. The reaction of an alkene with chloroform (CHCl3) in the presence of a strong base, such as potassium tert-butoxide (KOC(CH3)3) gives a: a) epoxide b) aldehyde c) alcohold) cycloalkanee ) ketone B. Which of the following would give formaldehyde (H2C=0) upon treatment with aqueous periodic acid (HIO)? a) а) CH2OH b) d) н -он HO-LH CH OH CH OH Но HOH CH OH CH OCH3 Ε0 OH CH OH FO...
please help with these chemistry problems
2. (5 points) Why does this reaction occur via a Si1 pathway and not via a Si2 pathway? 3. (5 points) In general are SN1 reactions stereospecific? Why or why not? 2 5.(5 points) Why do carbon substituents stabilize a carbocation and destabilize a carbanion? 6. (5 points) The mass spec of your product has a base peak at 77 draw what this fragment looks like. What would explain the peak at 79. (you...
How do I answer questions in number 6 please, Thanks
6) (12 points) Draw mechanisms for the following transformations +HC HO Br2 + HBr H3C H3 hv H3C rパ HO Br H2O + HBr c) (Hint for Se: Doubling the concentration of water has no effect on the rate.) 7.) (4 points) For the reaction in question 6b,t below is seen product, and what product ratio of question 6b is in fact the major prod stabilities of intermediates involved in...
please circle answer
Shown below is the reaction between a nitrile and a Grignard reagent. What would be the first step in the mechanism? CN - 1. CH3MgBr 2. H307 Nucleophile attacks nitrile carbon Hydrolysis of the nitrile Protonate the nitrile nitrogen Base Beprotonates the alpha-carbon An unknown compound shows an infrared absorption around 2250 cm (medium intensity). What structural fragment could be causing this absorption? carbonyl OOH nitrile N-H NH 1. (CH3)2CHCOCI, pyridine 2. LIAIH4 3. H2O Product tertiary...
Multiple Choice (5 points each, 30 points total). Circle the one BEST answer for each problem. 1. Which of the following tertiary alcohols cannot be prepared using the reaction of an ester with excess (2 equivalents) Grignard reagent? . Which of the following esters undergoes hydrolysis in basic conditions (saponification) most readily? . Which compound will be essentially unreactive with excess 1-butanol in acid-catalyzed conditions (upon moderate heating if required)? . Which of the following is the best method for...
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