7. Consider the following reaction A+B - products. The rate law was found to be Rate...
The reaction B ➔ products follows the rate law Rate = k [B]2. If the initial concentration of B is 0.400 M, it requires 100 seconds for [B] to fall to 0.200 M. The additional reaction time (in seconds) that is required for [B] to reach 0.100 M is A. 125 B. 175 C. 100 D. 150 E. 200
Consider the reaction A ⟶ Products. The rate law for this reaction is rate = k[A] where k= 3.00 X × 10-3 s-1 at a particular temperature. If the initial [A] = 0.500 M, what will be the concentration of A after 2.00 minutes
The reaction A+B → products was found to have the rate law; rate = k[A][B]2. While holding the concentration of B constant, the concentration of A was increased from 0.010M to 0.030M. Predict by what factor the rate of reaction will increase. Select one: a. 9 b.3 c. No effect d. 16 e. 6
The reaction A + 2B → Products was studied and found to have the rate law: Rate = k[A][B]2. By what factor will the rate increase if the concentration of B is tripled while the concentration of A is held constant?
Consider the hypothetical reaction: A + B +2C -------> 2D + 3E, where the rate law is: Rate = -delta[A] / delta t = k[A][B]^2. An experiment is carried out where [A]0 = 1.0*10^-2M, [B]0 = 3.0M, [C]0 = 2.0M. The reaction is started, and after 8.0 seconds, the concentration of A is 3.8*10^-3M. a) Calculate the value of k for the reaction. b) Calculate the half-life for this experiment. c) Calculate the concentration of A after 13.0 seconds d)...
4. A particular reaction is found to have the following rate law: Rate = k[A] [B] Which terms in this rate law are made different by each of the following changes? a. The concentration of A is doubled. Kate becomes a times the previous rate b. A catalyst is added. C. The concentration of A is increased by a factor of 2 and the concentration of Bis decreased by a factor of 4. d. The temperature is increased.
Consider the following reaction: A + B + C +D The rate law for this reaction is as follows: Rate = k Alla B11/2 Suppose the rate of the reaction at certain initial concentrations of A, B, and C is 1.14x10-2 M/s. Part A What is the rate of the reaction if the concentrations of A and C are doubled and the concentration of B is tripled? VO AED A O O ? Rate 2 = M/s Submit Request Answer
Please answer 39-42!!! The next four questions refer to the following choices: Rate = k [M] Rate = k [M][N] Rate = k[M][N]^2 Rate k[M]^2 [N]^2 Rate = k[N]^2 Doubling the concentration of M has no effect on the reaction rate Doubling the concentration of M and N increases reaction rate by 2 Doubling the concentration of M only quadruples the reaction rate Doubling the concentration of M and N increases the reaction rate by eightfold.
Consider the hypothetical reaction: A + B + 2 + 2D + E where the rate law is Rate = -444 = k[A][B An experiment is carried out where [A] = 6.9 x 10 M, (B) = 2.4 M and (C) = 4.0 M. The reaction is started, and after 10.7 seconds, the concentration of A is 4.9 x 10 M. Calculate the value of k for this reaction in units of M's Answer:
If the rate law for a reaction is rate = k[A]2[B] a. What is the overall order of the reaction? b. If the concentration of A is doubled and the concentration of B is tripled, how will this affect the rate of the reaction? c. How will doubling the concentration of B while holding A constant affect the value of k (assuming that temperature remains constant)?