1
answer
0
watching
417
views
18 Nov 2019
The following set of data was obtained by the method of initial rates for the reaction: 2 HgCl_2 (aq) + C_2O_4^2-(aq) rightarrow 2 Cl^- (aq) + 2CO_2(g) + Hg_2Cl_2(s) What is the value of the rate constant, k? A) 1.4 times 10^-5 1/M^2 s B) 1.3 times 10^-7 1/M^2 s C) 1.4 times 10^-8 1/M^2 s D) 1.3 times 10^-4 1/M^2 s The rate constant, k, for a first-order reaction is equal to 4.2 times 10^-4 s^-1. What is the half-life for the A) 1.7 times 10^3 s B) 1.2 times 10^3 s C) 2.4 times 10^3 s D) 2.9 times 10^-4 s The first order decomposition of hydrogen peroxide occurs according to the equation 2H_2O_2(aq) - 2 H_2O(l) + O_2(g) The first-order decomposition of hydrogen peroxide occurs according to the equation 2 H_2O_2(aq) - 2 H_2O(l) + O_2(g) Using data from a measurement of the concentration of the reactant at different during the progress of the reaction, which plot will produce a straight line? A) 1/[H_2O_2] versus time B) [H_2O_2] versus time C) [H_2O_2]^2 versus time D) ln[H_2O_2]versus time For the reaction shown below, which change in conditions made to the system at equilibrium will result in a net reaction to the right to form more product? C(s) + 2 H_2(g) = CH_4(g) Delta H degree = - 74.8 kj A) increasing the volume B) raising the temperature C) lowering the temperature D) adding more C For the reaction shown below, what is the relationship between the rate of formation of Br_2 and the rate of reaction of Br^- over the same time period? ClO_2^- (q) + 4 Br^- (aq) + 4 H^+ (aq) - Cl^- (aq) + 2 Br_2(aq) + 2 H_2 O(l) A) rate of formation of Br_2 = 2 = rate of reaction of Br^- B) rate of formation of Br_2 = 1/4 = rate of reaction of Br^- C) rate of formation of Br_2 = 2 =rate of reaction of Br^- D) rate of formation of Br_2 = 1/2 = rate of reaction of Br^- The decomposition of ammonia is 2 NH_3(g) = N_2(g) + 3 H_2(g). If K_p is 1.5 times 10^3 at 400 degree C, what is the partial pressure of ammonia at equilibrium when N_2 is 0.10 atm and H_2 is 0.15 atm? A) 4.4 times 10^6 atm B) 2.1 times 10^3 atm C) 4.7 times 10^-4 atm D) 2.2 times 10^-7 atm
The following set of data was obtained by the method of initial rates for the reaction: 2 HgCl_2 (aq) + C_2O_4^2-(aq) rightarrow 2 Cl^- (aq) + 2CO_2(g) + Hg_2Cl_2(s) What is the value of the rate constant, k? A) 1.4 times 10^-5 1/M^2 s B) 1.3 times 10^-7 1/M^2 s C) 1.4 times 10^-8 1/M^2 s D) 1.3 times 10^-4 1/M^2 s The rate constant, k, for a first-order reaction is equal to 4.2 times 10^-4 s^-1. What is the half-life for the A) 1.7 times 10^3 s B) 1.2 times 10^3 s C) 2.4 times 10^3 s D) 2.9 times 10^-4 s The first order decomposition of hydrogen peroxide occurs according to the equation 2H_2O_2(aq) - 2 H_2O(l) + O_2(g) The first-order decomposition of hydrogen peroxide occurs according to the equation 2 H_2O_2(aq) - 2 H_2O(l) + O_2(g) Using data from a measurement of the concentration of the reactant at different during the progress of the reaction, which plot will produce a straight line? A) 1/[H_2O_2] versus time B) [H_2O_2] versus time C) [H_2O_2]^2 versus time D) ln[H_2O_2]versus time For the reaction shown below, which change in conditions made to the system at equilibrium will result in a net reaction to the right to form more product? C(s) + 2 H_2(g) = CH_4(g) Delta H degree = - 74.8 kj A) increasing the volume B) raising the temperature C) lowering the temperature D) adding more C For the reaction shown below, what is the relationship between the rate of formation of Br_2 and the rate of reaction of Br^- over the same time period? ClO_2^- (q) + 4 Br^- (aq) + 4 H^+ (aq) - Cl^- (aq) + 2 Br_2(aq) + 2 H_2 O(l) A) rate of formation of Br_2 = 2 = rate of reaction of Br^- B) rate of formation of Br_2 = 1/4 = rate of reaction of Br^- C) rate of formation of Br_2 = 2 =rate of reaction of Br^- D) rate of formation of Br_2 = 1/2 = rate of reaction of Br^- The decomposition of ammonia is 2 NH_3(g) = N_2(g) + 3 H_2(g). If K_p is 1.5 times 10^3 at 400 degree C, what is the partial pressure of ammonia at equilibrium when N_2 is 0.10 atm and H_2 is 0.15 atm? A) 4.4 times 10^6 atm B) 2.1 times 10^3 atm C) 4.7 times 10^-4 atm D) 2.2 times 10^-7 atm
Lelia LubowitzLv2
18 May 2019