Homework Answers
This reaction is an example of Keto-Enol tautomerism. Here keto form is converted to enol form (alkene + alcohol = Ene + ok = enol).
But the C=O is more stable than C=C. So the keto form is more stable than enol. Hence the equilibrium is favored towards ketone.
Hence equilibrium David's G.
So we can eliminate the options A and B.
Generally Keto-Enol tautomerism is takes place in the presence of Acid or Base.
Therefore, the correct option is (C) this reaction is catalyzed by base and the equilibrium favors G.
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(11) - Which of these statements about the following reaction is correct? H20 OH (A) this...
13. Which of the following statements about the equilibrium constant is correct? a. If Keq l...
13. Which of the following statements about the equilibrium constant is correct? a. If Keq l there is no reaction. b. If Keq>1 the reaction favors reactant formation c. If Keq>1 the reaction favors product formation. d. both A and C Short Answer/Problems: Consider the exothermic reaction 2 H2 (g) + O2 (g) 2 H2O (g) If the reactio at equilibrium indicate in which direction the reaction would shift, if any, with the following disturbances? B) H2 is removed D)...
Your answer is partially correct. Try again For the reaction shown in Box 11-1 (the attack...
Your answer is partially correct. Try again For the reaction shown in Box 11-1 (the attack of an amine on the carbonyl group of a ketone) as a starting point, match the steps shown below in correct order for either a base-catalyzed or acid-catalyzed reaction: Step 1 Base-catalyzed Step 2 Base-catalyzed Step 3 Base-catalyzed Step 1 Acid-catalyzed 2. Step 2 Acid-catalyzed Step 3 Acid-catalyzed H R 1. R-N-C-O R" B-H 2. н R' R-N C-O н R" -A-H 3. н...
6. Which of the following statements is not true? A) Bond breaking is endothermic. B) The...
6. Which of the following statements is not true? A) Bond breaking is endothermic. B) The bond dissociation energy for bond breaking is always negative. C) Bond making is exothermic. D) The bond dissociation energy for bond formation is always negative. 37. Using the bond dissociation energies given, calculate AH® for the following reaction. CH,CH -Br + H2O CH,CH-OH + HBr AH KJ/mol Bond A-B CH3CH2-Br H-OH сHCH-он H-Br A) +108 KJ/mol B) -130 KJ/mol C) -22 KJ/mol D) +22...
Concerning the equation, NH3 + H20 <-> NH4+ + OH", (<-> consider as an equilibrium arrow) which of the...
Concerning the equation, NH3 + H20 <-> NH4+ + OH", (<-> consider as an equilibrium arrow) which of the following statements are TRUE? (i) NH3 and OH are weak bases. (ii) NH3 is a Bronsted base and NH4+ is its conjugate acid. (iii) H20 is a Bronsted acid and OH is its conjugate base. (iv) NH4+ is a weaker acid than H20. Oi, ii, iii Oi, i Oii, iv O ii, iii o all statements are true
Study the reaction. 2 HNO3(aq) + Ca(OH)2(aq) ⟶ Ca(NO3)2(aq) + 2 H2O(l) Which statements about the...
Study the reaction. 2 HNO3(aq) + Ca(OH)2(aq) ⟶ Ca(NO3)2(aq) + 2 H2O(l) Which statements about the reaction are correct? (Select all that apply.) Ca(OH)2 is the neutral substance in the reaction. A salt is formed as a result of the reaction. After some time, the reaction reaches an equilibrium state. The reaction between the acid and the base goes to completion.
Which of the following statements is/are correct? 1. A catalyst speeds up a reaction by changing...
Which of the following statements is/are correct? 1. A catalyst speeds up a reaction by changing ∆H, the enthalpy of the reaction 2. Addition of a catalyst to a reaction changes the equilibrium constant 3. A catalyst increases the rates of both the forward and reverse reactions . 3 only B. 2 only C. 2 & 3 only D. none E. 1 & 2 only Which one of the following statements about the overall order of a reaction is correct?...
6) Which of the following statements is true? A) If Q = K, it means the reaction is not at equilibrium B) If Q<...
6) Which of the following statements is true? A) If Q = K, it means the reaction is not at equilibrium B) If Q< K, it means the forward reaction will proceed (to the right) to form more reactants. C) If Q< K, it means the reverse reaction will proceed (to the left) to form more reactants. D) If Q> K, it means the forward reaction will proceed (to the right) to form more reactants E) If Q> K, it...
D Question 18 1 pts Which of the following statements best describes the reaction shown as...
D Question 18 1 pts Which of the following statements best describes the reaction shown as all four substances are mixed in a sealed container at an initial concentration of 0.10 M. CO(g) + H2O(g) + CO2(g) + H2(g) K-0.6944 The reaction will proceed toward products and favors products at equilibrium. The reaction will proceed toward products and favors reactants at equilibrium The reaction will proceed towards reactants and favors products at equilibrium. The reaction will proceed towards reactants and...
Given the following equilibrium reaction: HI (aq) + H20 <- -> I- (aq) + H3O+ (aq)...
Given the following equilibrium reaction: HI (aq) + H20 <- -> I- (aq) + H3O+ (aq) Indicate which of the following statements are true? a. water is not acting as an acid or base b. water is acting as a acid and its conjusgate base is I- c. water is acting as a base and its conjugate is I- d. HI is acting as a acid and its conjugare baseis I- e. HI is acting as a base and its...
For the reaction CH,N(aq) + H20(1) CH NH(aq) + OH (aq), which of the following is...
For the reaction CH,N(aq) + H20(1) CH NH(aq) + OH (aq), which of the following is a conjugate acid-base pair?
13. Which of the following statements about the equilibrium constant is correct? a. If Keq l there is no reaction. b. If Keq>1 the reaction favors reactant formation c. If Keq>1 the reaction favors product formation. d. both A and C Short Answer/Problems: Consider the exothermic reaction 2 H2 (g) + O2 (g) 2 H2O (g) If the reactio at equilibrium indicate in which direction the reaction would shift, if any, with the following disturbances? B) H2 is removed D)...
Your answer is partially correct. Try again For the reaction shown in Box 11-1 (the attack of an amine on the carbonyl group of a ketone) as a starting point, match the steps shown below in correct order for either a base-catalyzed or acid-catalyzed reaction: Step 1 Base-catalyzed Step 2 Base-catalyzed Step 3 Base-catalyzed Step 1 Acid-catalyzed 2. Step 2 Acid-catalyzed Step 3 Acid-catalyzed H R 1. R-N-C-O R" B-H 2. н R' R-N C-O н R" -A-H 3. н...
6. Which of the following statements is not true? A) Bond breaking is endothermic. B) The bond dissociation energy for bond breaking is always negative. C) Bond making is exothermic. D) The bond dissociation energy for bond formation is always negative. 37. Using the bond dissociation energies given, calculate AH® for the following reaction. CH,CH -Br + H2O CH,CH-OH + HBr AH KJ/mol Bond A-B CH3CH2-Br H-OH сHCH-он H-Br A) +108 KJ/mol B) -130 KJ/mol C) -22 KJ/mol D) +22...
Concerning the equation, NH3 + H20 <-> NH4+ + OH", (<-> consider as an equilibrium arrow) which of the following statements are TRUE? (i) NH3 and OH are weak bases. (ii) NH3 is a Bronsted base and NH4+ is its conjugate acid. (iii) H20 is a Bronsted acid and OH is its conjugate base. (iv) NH4+ is a weaker acid than H20. Oi, ii, iii Oi, i Oii, iv O ii, iii o all statements are true
6) Which of the following statements is true? A) If Q = K, it means the reaction is not at equilibrium B) If Q< K, it means the forward reaction will proceed (to the right) to form more reactants. C) If Q< K, it means the reverse reaction will proceed (to the left) to form more reactants. D) If Q> K, it means the forward reaction will proceed (to the right) to form more reactants E) If Q> K, it...
D Question 18 1 pts Which of the following statements best describes the reaction shown as all four substances are mixed in a sealed container at an initial concentration of 0.10 M. CO(g) + H2O(g) + CO2(g) + H2(g) K-0.6944 The reaction will proceed toward products and favors products at equilibrium. The reaction will proceed toward products and favors reactants at equilibrium The reaction will proceed towards reactants and favors products at equilibrium. The reaction will proceed towards reactants and...
For the reaction CH,N(aq) + H20(1) CH NH(aq) + OH (aq), which of the following is a conjugate acid-base pair?
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