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QUESTION 58 Which of the following is most stable conformation of cis-1-methyl-2-phenylcyclohexane? Ph Ñ Œ det...
Potential energy Reaction progress First, indicate on the diagram the activation energy, transition state, and the...
Potential energy Reaction progress First, indicate on the diagram the activation energy, transition state, and the change of enthalpy for every step of this step-wise process, as well as the change in enthalpy for the overall reaction. Then, answer the following questions: (i) How many elementary steps are there in the mechanism of this reaction? (ii) Which of these steps is the rate-determining step? (iii) How many of the individual steps are exothermic? (iv) Is the overall reaction endothermic or...
4. Consider the reaction energy diagram below. Consider the "potential energy" to be equal to enthalpy....
4. Consider the reaction energy diagram below. Consider the "potential energy" to be equal to enthalpy. Potential energy Reaction progress First, indicate on the diagram the activation energy, transition state, and the change of enthalpy for every step of this step-wise process, as well as the change in enthalpy for the overall reaction. Then, answer the following questions: (i) How many elementary steps are there in the mechanism of this reaction? (ii) Which of these steps is the rate-determining step?...
I selected the second answer and it was incorrect. QUESTION 2 Which is true of a...
I selected the second answer and it was
incorrect.
QUESTION 2 Which is true of a free energy diagram for an SN2 reaction? 0 It includes a carbocation intermediate. 0 It includes intermediates that are higher in energy than reactants or products. o It includes one transition state. o It always shows that the reaction is net exothermic. 0 The reactants are always found at a lower energy than the products.
Please answer all 3 questions QUESTION 23 Which of the following statements are true? 1. ethanol...
Please answer all 3 questions
QUESTION 23 Which of the following statements are true? 1. ethanol is more soluble in water than dimethyl ether 2. ethanol has a higher boiling point than dimethyl ether 3. ethanol has the same molecular weight as dimethyl ether only 1 only 1 and 2 only 1 and 3 1, 2 and 3 QUESTION 24 In a unimolecular elimination (E1) reaction, the correct order of mechanistic steps is dissociation of the leaving group, then deprotonation...
Question 2 (1 point) Given the following half reactions with their corresponding standard reduction potentials, which...
Question 2 (1 point) Given the following half reactions with their corresponding standard reduction potentials, which of the following is/are true for the overall reaction happening under standard conditions? NO3 + 2H+ + 2e → NO2 + H20 E'O=0.421 V + O2 + 2H+ + 2e H20 E'=0.816 V (CHECK THE ONE(S) THAT IS/ARE CORRECT) 1) AE'' = 0.395 V for the spontaneous reaction. 2) % O2 + NO2 + NO3 is a spontaneous reaction. 3) O2 is the reducing...
Question 2 (1 point) Given the following half reactions with their corresponding standard reduction potentials, which...
Question 2 (1 point) Given the following half reactions with their corresponding standard reduction potentials, which of the following is/are true for the overall reaction happening under standard conditions? S+ 2H+ + 2e + H2S E' = -0.243 V Fe3+ + e + Fe2+ E'' - 0.771 V (CHECK THE ONE(S) THAT IS/ARE CORRECT) 1) Fe3+ has a greater affinity for electrons than S. 2) AE'O = 1.014 V for the spontaneous reaction. 3) Fe2+ is the reducing agent. 4)...
D Question 2 2 pts Which reagents would be best used to perform the following transformation?...
D Question 2 2 pts Which reagents would be best used to perform the following transformation? Time Runn 43 Minute OOH 1) 1. H+ ЛОН HO 2. Mgº 3. CO2 4. H30 2) 1. MeMgBr 2. H307 3. H2SO4 3) 1. NaHCO, 2. H30* 4) 1.HHO OH | 5) 1. HCN 2. CrOz/H20 2. CrOy/H20 3. H307 03 5 Predict the major product of the following reaction. & Hochs H" (eat) H3C 3) H3C -CH; 5) HyC-CH3 4) CH3 H3C-N-CH3...
First question: Which type of enzyme fron table 11-2 catalyzes the following reactions (a) 600 c=0...
First question: Which type of enzyme fron table 11-2 catalyzes the
following reactions
(a) 600 c=0 CH + NADH + H - 500- + NAD HO-- CH, COO H-CH(CH HỘI NH ADP + P 5. On the free energy diagram shown, label the intermediate(s) and transition state(s). Is the reaction thermodynamically favorable? 6. Urcase, the first enzyme to be crystallized, is inhibited in the presence of Hg, Cd, or Co ions What does this information suggest about the catalytic mechanism...
14. Which of the following is not a state function? a. Internal Energy b. Free Energy...
14. Which of the following is not a state function? a. Internal Energy b. Free Energy c. Enthalpy d. Entropy e. Heat 15. The second law of thermodynamics states that a. the entropy of a perfect crystal is zero at 0 K b. the entropy of the universe is constant. c. the energy of the universe is increasing. d. the entropy of the universe is increasing. e. the energy of the universe is constant. 16. Which of the following are...
Consider a voltaic (galvanic) cell with the following metal electrodes. Identify which metal is the cathode...
Consider a voltaic (galvanic) cell with the following metal electrodes. Identify which metal is the cathode and which is the anode, and calculate the cell potential. (Use the table of Standard Electrode Potentials.) (a) Ca(II) and Sc(III) Cathode: . Ca(II) Sc(III) Anode: Ca(II) Sc(III) Ecell = 0.0591 x V (b) Pb(II) and In(III) Cathode: . Pb(II) In(III) Anode: Pb(II) In(III) Ecell - (c) Ni(II) and Zr(IV) Cathode: NI(II) Zr(IV) Anode: Ni(II) Zr(IV) Ecell - V Supporting Materials Periodic Table Supplemental...
Potential energy Reaction progress First, indicate on the diagram the activation energy, transition state, and the change of enthalpy for every step of this step-wise process, as well as the change in enthalpy for the overall reaction. Then, answer the following questions: (i) How many elementary steps are there in the mechanism of this reaction? (ii) Which of these steps is the rate-determining step? (iii) How many of the individual steps are exothermic? (iv) Is the overall reaction endothermic or...
4. Consider the reaction energy diagram below. Consider the "potential energy" to be equal to enthalpy. Potential energy Reaction progress First, indicate on the diagram the activation energy, transition state, and the change of enthalpy for every step of this step-wise process, as well as the change in enthalpy for the overall reaction. Then, answer the following questions: (i) How many elementary steps are there in the mechanism of this reaction? (ii) Which of these steps is the rate-determining step?...
I selected the second answer and it was
incorrect.
QUESTION 2 Which is true of a free energy diagram for an SN2 reaction? 0 It includes a carbocation intermediate. 0 It includes intermediates that are higher in energy than reactants or products. o It includes one transition state. o It always shows that the reaction is net exothermic. 0 The reactants are always found at a lower energy than the products.
Please answer all 3 questions
QUESTION 23 Which of the following statements are true? 1. ethanol is more soluble in water than dimethyl ether 2. ethanol has a higher boiling point than dimethyl ether 3. ethanol has the same molecular weight as dimethyl ether only 1 only 1 and 2 only 1 and 3 1, 2 and 3 QUESTION 24 In a unimolecular elimination (E1) reaction, the correct order of mechanistic steps is dissociation of the leaving group, then deprotonation...
Question 2 (1 point) Given the following half reactions with their corresponding standard reduction potentials, which of the following is/are true for the overall reaction happening under standard conditions? NO3 + 2H+ + 2e → NO2 + H20 E'O=0.421 V + O2 + 2H+ + 2e H20 E'=0.816 V (CHECK THE ONE(S) THAT IS/ARE CORRECT) 1) AE'' = 0.395 V for the spontaneous reaction. 2) % O2 + NO2 + NO3 is a spontaneous reaction. 3) O2 is the reducing...
Question 2 (1 point) Given the following half reactions with their corresponding standard reduction potentials, which of the following is/are true for the overall reaction happening under standard conditions? S+ 2H+ + 2e + H2S E' = -0.243 V Fe3+ + e + Fe2+ E'' - 0.771 V (CHECK THE ONE(S) THAT IS/ARE CORRECT) 1) Fe3+ has a greater affinity for electrons than S. 2) AE'O = 1.014 V for the spontaneous reaction. 3) Fe2+ is the reducing agent. 4)...
D Question 2 2 pts Which reagents would be best used to perform the following transformation? Time Runn 43 Minute OOH 1) 1. H+ ЛОН HO 2. Mgº 3. CO2 4. H30 2) 1. MeMgBr 2. H307 3. H2SO4 3) 1. NaHCO, 2. H30* 4) 1.HHO OH | 5) 1. HCN 2. CrOz/H20 2. CrOy/H20 3. H307 03 5 Predict the major product of the following reaction. & Hochs H" (eat) H3C 3) H3C -CH; 5) HyC-CH3 4) CH3 H3C-N-CH3...
First question: Which type of enzyme fron table 11-2 catalyzes the
following reactions
(a) 600 c=0 CH + NADH + H - 500- + NAD HO-- CH, COO H-CH(CH HỘI NH ADP + P 5. On the free energy diagram shown, label the intermediate(s) and transition state(s). Is the reaction thermodynamically favorable? 6. Urcase, the first enzyme to be crystallized, is inhibited in the presence of Hg, Cd, or Co ions What does this information suggest about the catalytic mechanism...
14. Which of the following is not a state function? a. Internal Energy b. Free Energy c. Enthalpy d. Entropy e. Heat 15. The second law of thermodynamics states that a. the entropy of a perfect crystal is zero at 0 K b. the entropy of the universe is constant. c. the energy of the universe is increasing. d. the entropy of the universe is increasing. e. the energy of the universe is constant. 16. Which of the following are...
Consider a voltaic (galvanic) cell with the following metal electrodes. Identify which metal is the cathode and which is the anode, and calculate the cell potential. (Use the table of Standard Electrode Potentials.) (a) Ca(II) and Sc(III) Cathode: . Ca(II) Sc(III) Anode: Ca(II) Sc(III) Ecell = 0.0591 x V (b) Pb(II) and In(III) Cathode: . Pb(II) In(III) Anode: Pb(II) In(III) Ecell - (c) Ni(II) and Zr(IV) Cathode: NI(II) Zr(IV) Anode: Ni(II) Zr(IV) Ecell - V Supporting Materials Periodic Table Supplemental...
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