The first-order reaction C4H8→2C2H4 has the reaction constant k of 7.60×10−3 s−1. If the initial concentration of C4H8 is 0.325 M, what is the concentration of C4H8 after 20.0 seconds? The answer has three significant figures (3 decimal points).
The first-order reaction C4H8→2C2H4 has the reaction constant k of 7.60×10−3 s−1. If the initial concentration...
The rate constant k of the first-order reaction C4H8→2C2H4 is 7.60×10−3 s−1. The concentration of C4H8 at t=8.00 seconds is 0.306 M. What was the initial concentration of C4H8? The answer has 3 significant figures (3 decimal points).
A first-order reaction A⟶B has the rate constant k= 3.2×10−3 s^−1 . If the initial concentration of A is 1.5×10−2 M, what is the rate of the reaction at t= 620 s ? Express your answer to two significant figures and include the appropriate units.
If a zero order reaction has a rate constant k of 0.0416Mmin and an initial concentration of 2.29 M, what will be its concentration after 20.0 minutes? Your answer should have three significant figures.
The data below show the concentration of cyclobutane (C4H8) versus time for the following reaction: C4H8→2C2H4 Time (s) [C4H8] (M) 0 1.000 10 0.894 20 0.799 30 0.714 40 0.638 50 0.571 60 0.510 70 0.456 80 0.408 90 0.364 100 0.326 What is the rate of reaction when [C4H8]= 0.26 M ? Express your answer using two significant figures.
The zero order reaction 2N2O→2N2+O2 has the rate constant k of 7.20×10−3 molL s. If the initial concentration of N2O is 0.891 molL, what is the concentration of N2O after 2.00 seconds? Your answer should have three significant figures (three decimal places).
A first-order reaction A⟶BA⟶B has the rate constant k=k= 2.8×10−3 s−1s−1 . If the initial concentration of AA is 1.5×10−2 MM, what is the rate of the reaction at t=t= 690 ss ? Express your answer to two significant figures and include the appropriate units.
1. For a first order k = 9.09x10-3 1/s. If the initial concentration is 7.06 M calculate the concentration after 35.0 s. 2. How long does it take the initial concentration of 0.778 M reduce to 0.453 M when k for the first order reaction is 2.11x10-2 1/min.? 3. The rate constant for a reaction at 25.0 oC is 2.87x10 -2. What is the rate constant at 55.0 oC? E a= 20.5 kJ. 4. The decomposition of a substance is...
The rate constant for a certain reaction is k = 1.70×10−3 s−1 . If the initial reactant concentration was 0.900 M, what will the concentration be after 6.00 minutes? [A]t= B) A zero-order reaction has a constant rate of 3.90×10−4 M/s. If after 65.0 seconds the concentration has dropped to 4.00×10−2 M, what was the initial concentration? [A]0=
The reaction C4H8(g)⟶2C2H4(g) has an activation energy of 262 kJ/mol. At 600.0 K, the rate constant, k, is 6.1×10−8 s−1. What is the value of the rate constant at 765.0 K? k= s−1
The reactant concentration in a first-order reaction was 7.60×10−2 M after 35.0 s and 5.50×10−3 M after 85.0 s . What is the rate constant for this reaction? Express your answer with the appropriate units. Indicate the multiplication of units, as necessary, explicitly either with a multiplication dot or a dash. View Available Hint(s) k1st k1stk_1st =