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26. What is the relativism and Br Brill Br A) Constitutional isomers Bro B) Diastereomers C)...
22. Which of the following structures has the Sconfiguration? CH2CH3 CH2CH3 HECCI ......CH н OH ну...
22. Which of the following structures has the Sconfiguration? CH2CH3 CH2CH3 HECCI ......CH н OH ну H2CH2C сна A) Only 1 B) Only II C) Only I and II D) I, II and III 23. Which of the following structures has the configuration? CH,CH, CH.CH OH ...CHHECH H HỊCHẠC \ D) I, II and III A) Only I B) Only II C) Only I and II 24. What is the relationship between the following compounds? OH om B) Diastereomers C)...
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...
Consider the balanced chemical equation shown below: Co(s) + BrO-(aq) + H2O(l) → Br-(aq) + Co2+(aq)...
Consider the balanced chemical equation shown below: Co(s) + BrO-(aq) + H2O(l) → Br-(aq) + Co2+(aq) + 2 OH-(aq) ΔH°rxn = -259.87 kJ/mol Which of the following statements must be true about this chemical reaction? Circle all that apply. A. The reaction is fast. B. The reaction is product-favored. C. The entropy change for this reaction is positive. D. Increasing the temp will drive the reaction towards the products. E. The reaction is endothermic. F. The reaction is spontaneous. G....
5 of 15 A reaction is non-spontaneous. What can you conclude about the reverse reaction? O...
5 of 15 A reaction is non-spontaneous. What can you conclude about the reverse reaction? O It is spontaneous. It must be exothermic O It must have an increase in entropy O It is in equilibrium. 6 of 15 Based on the AG calculation, a student determined that a synthesis reaction should be spontaneous. When the student tries out the reaction, however, nothing happens. Which explanation is most plausible? O the student probably made a mistake in the calculation O...
SCHE 231 Chapter 6, Worksheet 1 Energy Diagrams 1. Why might it be important to understand...
SCHE 231 Chapter 6, Worksheet 1 Energy Diagrams 1. Why might it be important to understand the energy associated with a chemical reaction? What is this energy associated with? 2. Enthalpy What is Enthalpy (AH)? When is ΔΗ Positive? when is ΔΗ negative? In the diagram below, label which reaction is exothermic and which is endothermic Enthalpy 04) Enthalpy Sarting Products materials AN Starting materials Products Reaction coordinate Reaction coordnate 3. Entropy What is Entropy (AS) What contributes to entropy?...
the correct answer to #11 is supposed to be b but i keep getting c. what...
the
correct answer to #11 is supposed to be b but i keep getting c.
what am i doing wrong? also, the correct answer to #14 is b but i
keep getting d. please explain where i am going wrong. thank
you
11. Consider the reaction in the previous question, what the equilibrium constant would be equal to at 25°C? a) 0.645 AGE-RT enk b) 1.03x10-16 c) 9.64x10-1. 91.2-0008314 (298,15) enk d) 7.03x108 -0.036B-Ink 12. When a reaction is found...
and HCO 2. Carbonated beverages are acidic because CO, reacts with water to form CO2 (g)...
and HCO 2. Carbonated beverages are acidic because CO, reacts with water to form CO2 (g) + H2O (1) ---> H(aq) + HCO, (aq) For this reaction, AH = -12 kJ/mole and K. = 1.4x108 at 25°C. For HCO, (aq), S = 95J/mole K, AG = -587 kJ/mole a. You take your soda out of your cold refrigerator and let it warm up to room temperature (250C). Heat is a in this reaction so as the temperature increases, the reaction...
view Use these responses for the next 3 questions: A.+AH B.-AH C.-AG D. +AG E. +AS F.-AS Which represents an exothe...
view Use these responses for the next 3 questions: A.+AH B.-AH C.-AG D. +AG E. +AS F.-AS Which represents an exothermic chemical reaction? represents a spontaneous chemical reaction? 3. F Which would be used to represent a system with increasing order? 2. Which For the following three questions, use A. Xonly B.Y only C. both X and Y D. neither X nor Y 4. A In which of the following reactions does the entropy increase? reactionX: CaCOs(s) → CaO(s)+000 5.上...
free energy enthal Name Entropy (S) The second factor involved in determining whether or not a...
free energy enthal
Name Entropy (S) The second factor involved in determining whether or not a process is spontaneous is the change in randomness or entropy (AS). Entropy is represented by the symbol S. Again, experience can help us understand the relationship between entropy and spontaneous processes. If we look at the two drawings below, we can predict which picture represents the stack of marbles "before and after they are bumped. We expect the stack of marbles (less random; lower...
please snswer all thanks 5. For the following reaction step, indicate which pattern of arrow pushing...
please snswer all thanks
5. For the following reaction step, indicate which pattern of arrow pushing it represents. Circle one. A. proton transfer C. nucleophilic attack B. loss of leaving group D. rearrangement 6. The following reaction has three mechanistic steps (down, across, and up), Draw all of the curved arrows necessary to complete the mechanism. (Hint: there should be 4 arrows total) HBO OH Br H-Br OH2 + Hö 7. Draw the most likely structure of the following cation...
22. Which of the following structures has the Sconfiguration? CH2CH3 CH2CH3 HECCI ......CH н OH ну H2CH2C сна A) Only 1 B) Only II C) Only I and II D) I, II and III 23. Which of the following structures has the configuration? CH,CH, CH.CH OH ...CHHECH H HỊCHẠC \ D) I, II and III A) Only I B) Only II C) Only I and II 24. What is the relationship between the following compounds? OH om B) Diastereomers C)...
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...
5 of 15 A reaction is non-spontaneous. What can you conclude about the reverse reaction? O It is spontaneous. It must be exothermic O It must have an increase in entropy O It is in equilibrium. 6 of 15 Based on the AG calculation, a student determined that a synthesis reaction should be spontaneous. When the student tries out the reaction, however, nothing happens. Which explanation is most plausible? O the student probably made a mistake in the calculation O...
SCHE 231 Chapter 6, Worksheet 1 Energy Diagrams 1. Why might it be important to understand the energy associated with a chemical reaction? What is this energy associated with? 2. Enthalpy What is Enthalpy (AH)? When is ΔΗ Positive? when is ΔΗ negative? In the diagram below, label which reaction is exothermic and which is endothermic Enthalpy 04) Enthalpy Sarting Products materials AN Starting materials Products Reaction coordinate Reaction coordnate 3. Entropy What is Entropy (AS) What contributes to entropy?...
the
correct answer to #11 is supposed to be b but i keep getting c.
what am i doing wrong? also, the correct answer to #14 is b but i
keep getting d. please explain where i am going wrong. thank
you
11. Consider the reaction in the previous question, what the equilibrium constant would be equal to at 25°C? a) 0.645 AGE-RT enk b) 1.03x10-16 c) 9.64x10-1. 91.2-0008314 (298,15) enk d) 7.03x108 -0.036B-Ink 12. When a reaction is found...
and HCO 2. Carbonated beverages are acidic because CO, reacts with water to form CO2 (g) + H2O (1) ---> H(aq) + HCO, (aq) For this reaction, AH = -12 kJ/mole and K. = 1.4x108 at 25°C. For HCO, (aq), S = 95J/mole K, AG = -587 kJ/mole a. You take your soda out of your cold refrigerator and let it warm up to room temperature (250C). Heat is a in this reaction so as the temperature increases, the reaction...
view Use these responses for the next 3 questions: A.+AH B.-AH C.-AG D. +AG E. +AS F.-AS Which represents an exothermic chemical reaction? represents a spontaneous chemical reaction? 3. F Which would be used to represent a system with increasing order? 2. Which For the following three questions, use A. Xonly B.Y only C. both X and Y D. neither X nor Y 4. A In which of the following reactions does the entropy increase? reactionX: CaCOs(s) → CaO(s)+000 5.上...
free energy enthal
Name Entropy (S) The second factor involved in determining whether or not a process is spontaneous is the change in randomness or entropy (AS). Entropy is represented by the symbol S. Again, experience can help us understand the relationship between entropy and spontaneous processes. If we look at the two drawings below, we can predict which picture represents the stack of marbles "before and after they are bumped. We expect the stack of marbles (less random; lower...
please snswer all thanks
5. For the following reaction step, indicate which pattern of arrow pushing it represents. Circle one. A. proton transfer C. nucleophilic attack B. loss of leaving group D. rearrangement 6. The following reaction has three mechanistic steps (down, across, and up), Draw all of the curved arrows necessary to complete the mechanism. (Hint: there should be 4 arrows total) HBO OH Br H-Br OH2 + Hö 7. Draw the most likely structure of the following cation...
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