Could I get help on part B 3a. A certain first-order reaction is 35.5% complete in...
sa ei 3a. A certain first-order reaction is 35.5% complete in 4.90 minutes at 25°C. What is its rate constant? vasta completa so n a zase. what is content
The uncoiling of DNA is a first order reaction. Its activation energy is 420 kJ at 37degree C, the rate constant is 4.90 times 10^-4 min^-1. What is the half-life of the uncoiling if the organism has a temperature of 37degree C (104degreeF).
A.For the following first order reaction, the half-life is 28.3 and the [A]0 = 1.36. Calculate the rate constant.2A -> 3BB.Consider the following reaction. aA + bB -> cCwhose first and second half-lives are 38.2 and 19.1 minutes respectively. If the rate constant is equal to 0.2148 and [A]0 = 16.41, calculate the [A] at t 5.87 minutes.C.A researcher raises the temperature from 46.4 to 66 °C and finds that the rate of the reaction doubles. What was the activation energy (in...
Reaction 2A + B --> 3C is first order in B and zero order in A. The initial concentrations are 0.250M for A and B and 0.000M for C. The rate constant for a certain temperature is 1.30 x 10-3 s-1. Write down the rate law for this reaction in terms of disappearance of the reactant B. Calculate reaction half-life Calculate the molarity of B after 50.0 sec. Calculate the molarity of product C after 50.0 sec. Calculate molarity of...
A certain first-order reaction (A products) has a rate constant of 5.40 10-3 s I at 45 °C How many minutes does it take for the concentration of the reactant, [A], to drop to 6.25% of the original concentration? at 27 °C A certain second-order reaction (B-products) has a rate constant of 1.05x10-3 M 1.s and an initial half-life of 266 s What is the concentration of the reactant B after one half-life?
Question 44 4 pts A certain first-order reaction A - Bis 25% complete in 42 min at 25°C. What is its rate constant? O 8.3 x 10-min-1 0 -3.3 * 10-2 min-1 O 11 min-1 6.8* 10 min-1 O 33* 10-2 min-1
Part A. A certain first-order reaction (A→products) has a rate constant of 3.90×10−3 s−1 at 45 ∘C. How many minutes does it take for the concentration of the reactant, [A], to drop to 6.25% of the original concentration? Part B. A certain second-order reaction (B→products) has a rate constant of 1.90×10−3 M−1⋅s−1 at 27 ∘C and an initial half-life of 298 s . What is the concentration of the reactant B after one half-life?
a certain second order reaction A to B is 25% complete in 42 minutes at 25 degrees celsius. What is the half life of the reaction
I need the answers in details with explanation thanks in advance! first question: second question: 7) The reaction (CH3)3CBr + OH → (CH3)3COH + Br in a certain solvent is first order with respect to (CH3)3CBr and zero order with respect to OH-. In several experiments, the rate constant k was determined at different temperatures. A plot of In(k) versus 1/T was constructed resulting in a straight line with a slope of -1.10 X 104 K and y-intercept of 33.5....
6. A first-order reaction is 45% complete at the end of 35 minutes. What is the half-life (in minutes) for this reaction? (20 points) 7. Answer questions regarding the following mechanism: (20 points) Slow 0; (g) + NO (9) NO2 (g) + O2 (g) NO2 (g) + O (g) → NO (g) + O2 (g) Fast a. What is the catalyst? b. What is the intermediate? c. What is the overall reaction? d. What is the overall rate law, if...