Please explain in words and in equations the resonance
structures.
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Please explain in words and in equations the resonance structures. (10 pts) There are things in...
Explain the following observations in a concise manner. Use equations, mechanisms, diagrams and/or resonance structures to...
Explain the following observations in a concise manner. Use equations, mechanisms, diagrams and/or resonance structures to illustrate your answer. i. The unusual molecule 1,6-methano[10]annulene ( ) exhibits two sets of signals in the 'H-NMR spectrum at 8 = 7.10 (8H) and -0.50 (2H). (4 marks] Compound C is more acidic that compound D. с base [4 marks) Propose a reasonable mechanism for the following reaction of benzene with 1,5-dibromopentane in the presence of a Lewis acid catalyst.
Problem 4A should read "The Kb for HSO4- is less than that of SO42-..." Please solve...
Problem 4A should read "The Kb
for HSO4- is less than that of SO42-..."
Please solve and provide correct multiple choice. Thanks
1. (3 pts) in the chemical reaction (CH3)3N(g) + BF3(g) = (CH3)3NBF3(s), BF3 acts as a Lewis because it a. acid; accepts electrons b. base; accepts electrons C. acid; donates electrons d. base; donates electrons 2. (3 pts) of the following, which is the strongest acid? a. H2O b. H2S C. H Se d. The acid strength of...
Explain the following observations in a concise manner. Use equations, man diagrams and/or resonance structures to...
Explain the following observations in a concise manner. Use equations, man diagrams and/or resonance structures to illustrate your answer. cise manner. Use equations, mechanisms, i. Alcohol G loses water upon protonation es water upon protonation with HCl faster than alcohol H. OH [5 marks) Pentalene is a most exclusive molecule and has never been isolated pentalene dianion however is well known and quite stable. pentalene pentalene dianion [3 marks) Write a reasonable mechanism for the following reactions, making sure to...
4. Explain things in the following question(s) In each reaction, identify the Brønsted-Lowry acid, the Brønsted-Lowry...
4. Explain things in the following question(s) In each reaction, identify the Brønsted-Lowry acid, the Brønsted-Lowry base, the conjugate acid, and the conjugate base. (a) H2SO4(aq) + H2O(l) —— HSO4 (aq) + H30+(aq) (b) HCO3(aq) + H20(1) = H,CO3(aq) + OH(aq) 5. Using examples, distinguish between a Nucleophile vs Electrophile. Give at least 2 differences between the 2 concepts 6. What are curved arrows or "curly arrows" in Organic Chemistry? What do they represent? Give an example (b) Using Ammonia...
Question 2 (25 pts.) This is benzoic acid. Draw MINOR RESONANCE contributors as necessary to explain...
Question 2 (25 pts.) This is benzoic acid. Draw MINOR RESONANCE contributors as necessary to explain why the nmr chemical shift of carbon A is larger than that of carbon B. Give a brief explanation that includes the terms "deshielding" and "electron density. Question 3 (18 pts.) Rank the indicated hydrogens A, B and C in order of INCREASING chemical shift, give a BRIEF explanation. You do not need to invoke resonance to answer this question. lowest highest Question 4...
Please explain in words and in equations (15 pts) Calculate the pH and the concentration of...
Please explain in words and in equations
(15 pts) Calculate the pH and the concentration of all the species present at equilibrium for a 1.0E-4 M carbonic acid solution. Ka1: 4.20E-7 Kaz: 4.80E-11 Tulak ach 14.202-7=CACIBOT J A - + H-0)
A chemistry teacher needs to make 2.30 L of a potassium chloride solution for an experimen...
A chemistry teacher needs to make 2.30 L of a potassium chloride solution for an experimen The concentration of the required solution is 3.10 M. How many grams of KCI will she need to use? 0 7.13 g KCI 0 231 g KCI O 532 g KCI 0.0956 g KCI What is the equation for the ion product constant of water at 25 °C? Kw [H,0+][OH-] [H,O] = 1.00 x 10-14 Kw [H,0+1 [OH-] = 1.00 x 10-14 Kw =...
Working on the questions at the end of this lab report (see above). I need help answering questio...
Working on the questions at the end of this lab report
(see above). I need help answering questions 2, 3, and 4 completely
and thoroughly. Thank you!
s, until the I hexano 1 clean disti CYCLOHEXENE from CYCLOHEXANOL be dehydrated with solfuric acid to yield cyclohexene and waterf Add a 0°C (record ct and cal H,SO + H20 ainer. s in purification of any crude product are (a) the preliminary separation of the product from the reaction mixture by distillation...
Explain the following observations in a concise manner. Use equations, mechanisms, diagrams and/or resonance structures to illustrate your answer. i. The unusual molecule 1,6-methano[10]annulene ( ) exhibits two sets of signals in the 'H-NMR spectrum at 8 = 7.10 (8H) and -0.50 (2H). (4 marks] Compound C is more acidic that compound D. с base [4 marks) Propose a reasonable mechanism for the following reaction of benzene with 1,5-dibromopentane in the presence of a Lewis acid catalyst.
Problem 4A should read "The Kb
for HSO4- is less than that of SO42-..."
Please solve and provide correct multiple choice. Thanks
1. (3 pts) in the chemical reaction (CH3)3N(g) + BF3(g) = (CH3)3NBF3(s), BF3 acts as a Lewis because it a. acid; accepts electrons b. base; accepts electrons C. acid; donates electrons d. base; donates electrons 2. (3 pts) of the following, which is the strongest acid? a. H2O b. H2S C. H Se d. The acid strength of...
Explain the following observations in a concise manner. Use equations, man diagrams and/or resonance structures to illustrate your answer. cise manner. Use equations, mechanisms, i. Alcohol G loses water upon protonation es water upon protonation with HCl faster than alcohol H. OH [5 marks) Pentalene is a most exclusive molecule and has never been isolated pentalene dianion however is well known and quite stable. pentalene pentalene dianion [3 marks) Write a reasonable mechanism for the following reactions, making sure to...
4. Explain things in the following question(s) In each reaction, identify the Brønsted-Lowry acid, the Brønsted-Lowry base, the conjugate acid, and the conjugate base. (a) H2SO4(aq) + H2O(l) —— HSO4 (aq) + H30+(aq) (b) HCO3(aq) + H20(1) = H,CO3(aq) + OH(aq) 5. Using examples, distinguish between a Nucleophile vs Electrophile. Give at least 2 differences between the 2 concepts 6. What are curved arrows or "curly arrows" in Organic Chemistry? What do they represent? Give an example (b) Using Ammonia...
Question 2 (25 pts.) This is benzoic acid. Draw MINOR RESONANCE contributors as necessary to explain why the nmr chemical shift of carbon A is larger than that of carbon B. Give a brief explanation that includes the terms "deshielding" and "electron density. Question 3 (18 pts.) Rank the indicated hydrogens A, B and C in order of INCREASING chemical shift, give a BRIEF explanation. You do not need to invoke resonance to answer this question. lowest highest Question 4...
Please explain in words and in equations
(15 pts) Calculate the pH and the concentration of all the species present at equilibrium for a 1.0E-4 M carbonic acid solution. Ka1: 4.20E-7 Kaz: 4.80E-11 Tulak ach 14.202-7=CACIBOT J A - + H-0)
A chemistry teacher needs to make 2.30 L of a potassium chloride solution for an experimen The concentration of the required solution is 3.10 M. How many grams of KCI will she need to use? 0 7.13 g KCI 0 231 g KCI O 532 g KCI 0.0956 g KCI What is the equation for the ion product constant of water at 25 °C? Kw [H,0+][OH-] [H,O] = 1.00 x 10-14 Kw [H,0+1 [OH-] = 1.00 x 10-14 Kw =...
Working on the questions at the end of this lab report
(see above). I need help answering questions 2, 3, and 4 completely
and thoroughly. Thank you!
s, until the I hexano 1 clean disti CYCLOHEXENE from CYCLOHEXANOL be dehydrated with solfuric acid to yield cyclohexene and waterf Add a 0°C (record ct and cal H,SO + H20 ainer. s in purification of any crude product are (a) the preliminary separation of the product from the reaction mixture by distillation...
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