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5. The reaction CH+2C,H, is first order with rate constant k = 1.89 x 10251. a....
The reaction CH, +2C,H, is first order with rate constant k = 1.89 x 10151. a. Suppose that (C.HsJo = 0.265 M. How long (in seconds) will it take for the concentration of CoHs to decrease to 45.0% of its initial value? b. What is the concentration of the product CzHe after 1.75 seconds of reaction?
The reaction C H → 2C H is first order with rate constant k = 1.89 x 10-1 s-1. 48 24 a. Suppose that [C4H8]0 = 0.265 M. How long (in seconds) will it take for the concentration of C4H8 to decrease to 45.0% of its initial value
The rate constant at 298K for the decomposition reaction CH3 + 2C,H, is 6.6 % 103151 and the activation energy is 261 k) per mole of C.Hg. Determine the frequency factor for the reaction. O 3.9 x 10's 0 24x 1013 O 1.5 x 1012/S
A certain reactant disappears by a first order reaction that has a rate constant K= 3.5x10^-3 s-1. If the initial concentration of the reactant is 0.500 M , how long will it take for the concentration to drop to 0.200 M ? 4. A certain reactant disappears by a first-order reaction that has a rate constant k=3.5 x 10 s. If the initial concentration of the reactant is 0.500 M, how long will it take for the concentration to drop...
The rate constant for this first-order reaction is 0.610 s–1 at 400 °C. A--->products How long (in seconds) would it take for the concentration of A to decrease from 0.690 M to 0.260 M? The rate constant for this second-order reaction is 0.590 M–1·s–1 at 300 °C. How long (in seconds) would it take for the concentration of A to decrease from 0.950 M to 0.330 M? The rate constant for this zero-order reaction is 0.0230 M·s–1 at 300 °C...
1. A certain first order reaction has a rate constant of 0.036 min-1. How much of the reactant will remain if the reaction is run for 2.5 hours and the initial concentration of the reactant is 0.31 M? 2. A certain first order reaction has a rate constant of 0.036 min-1. How much of the reactant will remain if the reaction is run for 2.5 hours and the initial concentration of the reactant is 0.31 M? 3. The rate constant...
The reaction, aA products, is a first order reaction with a rate constant of 1.248 x 10-4 s-1 . a. How long (in seconds) does it take for the initial amount of A to decrease by 30%? b. What fraction of reactant remains after 30 minutes? c. What is the half-life for the reaction? d. How long does it take for the initial amount of reactant to decrease by 87.5%?
The rate constant, k, for the first order reaction A --> 2B is 0.0424 s-1. If the initial concentration is 2.14M, what is the concentration after 56.114 seconds?
Question 3 1 pts The rate constant, k, of the first order reaction A B +C is k = 8.62 x 10-35-1. If the initial concentration of A is 2.74 M, how long will it take for the concentration of A to fall below 0.32 M? Give your answer to one decimal place in MINUTES (do not input the units). For example, if your answer is 8.956 minutes, enter 9.0 Question 4 1 pts The rate constant, k, of the...
The first order reaction, SO2Cl2 -> SO2 + Cl2, has a rate constant of 0.17 h^-1. If the initial concentration of SO2Cl2 is 1.25 x 10^-3 M, how many seconds does it take for the concentration to drop to 0.31 x 10^-3 M?