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12. The pKa of NH4+ is 9.8 and the pka of H2O is 15.7 Would this reaction have more products or reactants at equili...
1. The initial concentrations of reactants and products for this reaction are given below. N2(g) +...
1. The initial concentrations of reactants and products for this reaction are given below. N2(g) + O2(g) ⇄ 2NO(g) Calculate Q for this reaction. Answer this to one decimal place (e.g. 10.2) The initial concentration of N2 is 1.0 M The initial concentration of O2 is 1.0 M The initial concentration of NO is 2.5 M 2. The reaction below is not at equilibria and Q = 1.7. The equilibrium constant is K = 0.230. 2SO3(g) ⇌ 2SO2(g) + O2(g)...
Reaction . NH3(aq) + H2O (l) D NH4+1(aq) + OH-1(aq) 16. Another student says “Adding MgCl2...
Reaction . NH3(aq) + H2O (l) D NH4+1(aq) + OH-1(aq) 16. Another student says “Adding MgCl2 cannot affect this reaction, because it doesn’t contain any MgCl2 as a reactant or product.” Choose the best answer below (Circle, bold, highlight, italicize one). The other student is correct. Only chemicals that are contained in the given chemical reaction affect reaction equilibrium. According to Le Chatelier’s principle, the addition of MgCl2 will not cause the reaction to shift left or right. The other...
6. (1 pt) Which represents an ENDOTHERMIC reaction? a. 10 kJ + reactants - products b....
6. (1 pt) Which represents an ENDOTHERMIC reaction? a. 10 kJ + reactants - products b. reactants-> products + 10 kJ C reactants - products d. reactants-products 7. (1 pt) Which represents a reaction that requires a catalyst? a. 10 kJ + reactants-> products b. reactants -> products + 10 kJ c. reactants products d. reactants-> products 8. (1 pt) Which represents reversible reaction? a. 10 kJ + reactants -> products b. reactants-> products + 10 kJ C. reactants products...
9. What does it mean if Keq < 1, at equilibrium? The concentration of reactants is...
9. What does it mean if Keq < 1, at equilibrium? The concentration of reactants is greater than the concentration of products. b. The concentration of products is greater than the concentration of reactants. The rate of the forward reaction is greater than the rate of the reverse reaction. c. d. The rate of the reverse reaction is greater than the rate of the forward reaction. e. The concentration of products and reactants are about the same. Which of the...
2.3 In the following nitration reaction, when NH4+ (pka = 9.2) was used, the reaction did...
2.3 In the following nitration reaction, when NH4+ (pka = 9.2) was used, the reaction did not proceed and no product was formed Acid HNO3, 50°C ON D B a) Given that the pka of HNO3 is -1.4, explain, in not more than 3 lines, why the reaction did not proceed? (4 marks) b) Choose appropriate reagent from below and in not more than 3 lines, explain your choice. CH3CO2H (pka 9.9), C6H5SO3H (pka = -6.5) and Hi (pka =...
1.) We have a reaction A + B C and it’s at equilibrium. We add more A....
1.) We have a reaction A + B C and it’s at equilibrium. We add more A. A) K will increase B) K will decrease C) Q will increase D) Q will decrease 2.) For the previous reaction, K = 1.32 x 1034. What does this mean? A) It’s a fast reaction. B) The products are favored at equilibrium C) The reactants are favored at equilibrium D) The reactants and products are equal at equilibrium. E) A and B
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4. The equilibrium constant values for a number of reactions are listed below. Indicate whether the products or reactants are favored. Reaction Which side is favored? NH3(aq) + H2O(l) 5 NH4+ (aq) + OH(aq) K = 5.0 x 1012 2 HBr 5 2 Hz Brz K = 5.8 x 10-18 CH3CH(OH)COOH(aq) = CH3CH(OH)COO"(aq) + H+(aq) K= 1.4 x 10-4 5. Hydrogen chloride can be made...
+ NH3 H₂O OH NH4+ Given the chemical reaction above, NH3 would be classified as a...
+ NH3 H₂O OH NH4+ Given the chemical reaction above, NH3 would be classified as a O A strong acid O B. weak base O C. Strong base O D. weak acid QUESTION 11 When added to water, which of the following would produce an acid? OMgo Nao NH3 SO3 None of the above. 00000 QUESTION 12 taste. Liquids that have a basic pH can be identified by their O A. salty O B. sour O C. sweet O D....
2. (12) A chemical reaction rate is the speed at which reactants are converted to products....
2. (12) A chemical reaction rate is the speed at which reactants are converted to products. List four factors that affect the rates of all reactions: a) b) 3. (8) Give a statement of LeChatelier's Principle for a chemical reaction at equilibrium: 4. (14) For the reaction at equilibrium: 3 H2(g) + N2 (g) ==> 2 NH3(g) + heat (exothermic) a) write the equilibrium constant expression for the reaction above: Keq = b) For each of the following changes in...
A chemical reaction has reached equilibrium when A) the concentrations of reactants and products are equal. B) all...
A chemical reaction has reached equilibrium when A) the concentrations of reactants and products are equal. B) all reactants have been converted to products. all products have been removed from the reaction mixture. D) the catalyst has been used up. E) the rate of the forward reaction equals the rate of the reverse reaction. 6) An equilibrium in which all the components are gases is a A) heterogeneous equilibrium. D) homogeneous B) liquid C) catalytic E) reversible 7) The equilibrium...
6. (1 pt) Which represents an ENDOTHERMIC reaction? a. 10 kJ + reactants - products b. reactants-> products + 10 kJ C reactants - products d. reactants-products 7. (1 pt) Which represents a reaction that requires a catalyst? a. 10 kJ + reactants-> products b. reactants -> products + 10 kJ c. reactants products d. reactants-> products 8. (1 pt) Which represents reversible reaction? a. 10 kJ + reactants -> products b. reactants-> products + 10 kJ C. reactants products...
9. What does it mean if Keq < 1, at equilibrium? The concentration of reactants is greater than the concentration of products. b. The concentration of products is greater than the concentration of reactants. The rate of the forward reaction is greater than the rate of the reverse reaction. c. d. The rate of the reverse reaction is greater than the rate of the forward reaction. e. The concentration of products and reactants are about the same. Which of the...
2.3 In the following nitration reaction, when NH4+ (pka = 9.2) was used, the reaction did not proceed and no product was formed Acid HNO3, 50°C ON D B a) Given that the pka of HNO3 is -1.4, explain, in not more than 3 lines, why the reaction did not proceed? (4 marks) b) Choose appropriate reagent from below and in not more than 3 lines, explain your choice. CH3CO2H (pka 9.9), C6H5SO3H (pka = -6.5) and Hi (pka =...
late for class please just
help with these dont have time to make more posts
4. The equilibrium constant values for a number of reactions are listed below. Indicate whether the products or reactants are favored. Reaction Which side is favored? NH3(aq) + H2O(l) 5 NH4+ (aq) + OH(aq) K = 5.0 x 1012 2 HBr 5 2 Hz Brz K = 5.8 x 10-18 CH3CH(OH)COOH(aq) = CH3CH(OH)COO"(aq) + H+(aq) K= 1.4 x 10-4 5. Hydrogen chloride can be made...
+ NH3 H₂O OH NH4+ Given the chemical reaction above, NH3 would be classified as a O A strong acid O B. weak base O C. Strong base O D. weak acid QUESTION 11 When added to water, which of the following would produce an acid? OMgo Nao NH3 SO3 None of the above. 00000 QUESTION 12 taste. Liquids that have a basic pH can be identified by their O A. salty O B. sour O C. sweet O D....
2. (12) A chemical reaction rate is the speed at which reactants are converted to products. List four factors that affect the rates of all reactions: a) b) 3. (8) Give a statement of LeChatelier's Principle for a chemical reaction at equilibrium: 4. (14) For the reaction at equilibrium: 3 H2(g) + N2 (g) ==> 2 NH3(g) + heat (exothermic) a) write the equilibrium constant expression for the reaction above: Keq = b) For each of the following changes in...
A chemical reaction has reached equilibrium when A) the concentrations of reactants and products are equal. B) all reactants have been converted to products. all products have been removed from the reaction mixture. D) the catalyst has been used up. E) the rate of the forward reaction equals the rate of the reverse reaction. 6) An equilibrium in which all the components are gases is a A) heterogeneous equilibrium. D) homogeneous B) liquid C) catalytic E) reversible 7) The equilibrium...
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