At a given temperature, a reaction has a rate constant of 5.83 x 10-5 s-1. If the starting concentration is 2.65 Molar, the initial instantaneous rate will be ...?
4.28 x 10-1 M/s |
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1.54 x 10-4 M/s |
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0.962 M/s |
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7.15 x 10-1 M/s |
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8.93 x 10-3 M/s |
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6.91 x 10-7 M/s |
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2.00 M/s |
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1.56 M/s |
At a given temperature, a reaction has a rate constant of 5.83 x 10-5 s-1. If...
The rate constant for a certain reaction is k = 9.00 times 10^-3 s^-1. If the initial reactant concentration was 0 800 M, what will the concentration be after 4 00 m minutes? Express your answer with the appropriate units A zero order reaction has a constant rate of 2.10 times 10^-4 M/s. If after 65.0 seconds the concentrator has dropped to 2.00 times 10^-2 M, what was the initial concentration?
If a first-order reaction has a rate constant of 2.11 x 10-1 s-1 at a temperature of 22.3°C, what would the value of k be if the reaction temperature has changed to 43.4 °C given the activation energy is 52.9 kJ/mol?
At a given temperature a second order reaction has a rate constant of 146 L/mol*s and an initial concentration of 0.10M. How long will it take to be 85% complete?
1. Part: A The rate constant for a certain reaction is k = 6.00×10−3 s−1. If the initial reactant concentration was 0.550 M, what will the concentration be after 10.0 minutes? Part B: A zero-order reaction has a constant rate of 1.80×10−4M/s. If after 75.0 seconds the concentration has dropped to 7.50×10−2M, what was the initial concentration? 2. At 500 ∘C, cyclopropane (C3H6) rearranges to propane (CH3−CH=CH2). The reaction is first order, and the rate constant is 6.7×10−4s−1. If the...
Question 8 of9 Initial-rate data at a certain temperature is given in the table for the reaction C2H, CI(g) C2H, (g) + HCIg) [C2H5Cllo (M) 0.100 0.200 0.300 Initial rate (M/s) 0.770× 10-30 1.54 x 10-30 2.31 × 10-30 Determine the value and units of the rate constant. Units
A. The rate constant for a certain reaction is k = 1.70×10−3 s−1 . If the initial reactant concentration was 0.650 M, what will the concentration be after 18.0 minutes? B. A zero-order reaction has a constant rate of 4.20×10−4M/s. If after 70.0 seconds the concentration has dropped to 1.50×10−2M, what was the initial concentration?
1. If the rate constant of a reaction increases by 2.5 when the temperature is increased from 25 C to 34 C, then what is the activation energy (in kJ/mole) of the reactions? 2. If a reaction is first order with a rate constant of 4.48 x 10 ^ -2 sec ^-1, how long is required for 3/4 of the initial concentration of reactant to be used up? 3. Which statement is true or NOT regarding the experimental determination of...
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 Michaelis constant for urease at room temperature is 2.0 mM, and k2-2.5x 104 s-1 at phH 7.5. Calculate the initial rate of the reaction when the urea concentration is 0.025 mM and the urease concentration is 7.O uM 1.8 x 10-3 M s1 O 2.2 x 10-3 M s1 3.4 x 10-3M s1 5.7 x 10-3 M s-1 Question 4 (2 points) The rate constant for a pseudo-first-order reaction is 0.122 s1. Find the initial concentration of the reactant...
1-The rate constant of a chemical reaction was measured at several temperature values and a plot of ln k (on the y-axis) was plotted against 1/T (on the x-axis, temperature was measured in Kelvin). If the slope of the plot was -9.21 x 103 K and the y-intercept was 13.0, what is the activation energy (EA) of the reaction in kJ mol-1? 2-In an enzyme-catalyzed reaction, the rate of the reaction depends on which of the following at very low...