The kinetics of the following second-order reaction were studied
as a function of temperature:
C2H5Br(aq)+OH−(aq)→C2H5OH(l)+Br−(aq)
| Temperature (∘C) | k (L/mol⋅s) |
| 25 | 8.81×10−5 |
| 35 | 0.000285 |
| 45 | 0.000854 |
| 55 | 0.00239 |
| 65 |
0.00633 |
If a reaction mixture is 0.155 M in C2H5Br, and 0.260 M in OH−, what is the initial rate of the reaction at 80 ∘C?
Express your answer using two significant figures.
The kinetics of the following second-order reaction were studied as a function of temperature: C2H5Br(aq)+OH−(aq)→C2H5OH(l)+Br−(aq) Temperature...
please help with C and D
Part A Determine the activation energy for the reaction Ea 89.5 kJ mol Previous Answers Correct Significant Figures Feedback: Your answer 89.475 kJ mol 1 was either rounded differently or used a different number of significant figures than required for this part. Part B Determine the frequency factor for the reaction. A-4.22x1011 s Determine the rate constant at 10 °C. Express your answer using two significant figures The kinetics of this reaction were studied...
At a certain temperature this reaction follows first-order kinetics with a rate constant of 0.817 NH,OH(aq) - NH, (aq) +H,0 (aq) Suppose a vessel contains NH OH at a concentration of 0.380 M. Calculate the concentration of NH OH in the vessel 0.830 seconds later. You may assume no other reaction is important. Round your answer to 2 significant digits.
The reaction A(aq) +B(aq) - Products(aq) was studied, and the following data were obtained: [Alo (mol/L) [Blo (mol/L) Initial rate (mol/L.) 0.32 0.48 0.16 0.32 6.17x10-1 2.06x10-1 7.72x10-2 6.17x10-1 0.080 0.24 0.64 0.24 The order of the reaction in A is
Given the chemical reaction below, A(aq) + 2 B(aq) ⇌ C(aq) + D(l) the equilibrium constant for the reaction is Kc = 0.8. The reaction mixture at equilibrium contains 1.47 mol of A, 1.84 mol of B in a 1.00 L flask. What is the concentration of C in the equilibrium mixture? Only enter the numerical value with three significant figures in the answer box below. Do NOT type in the unit (M).
In a calorimetry experiment, the following reaction was studied: 2NaOH(aq) + H2SO4(aq) Na2SO4(aq) + 2H2O(l) 100.0 mL portions of 1.00 M NaOH and H2SO4, at 24°C, were mixed. The maximum temperature achieved was 30.6°C. Neglecting the heat capacity of the coffee–cup calorimeter, and assuming that the products has a density of 1.0 g/mL and a heat capacity of 4.184 Jg-1K–1, calculate a. the heat released in the reaction, in J. b. Hrxn, in kJ/mol of Na2SO4 produced
Water ionizes by the equation H2 0()--H+ (aq) + OH-(aq) The extent of the reaction is small in pure water and dilute aqueous solutions. This reaction creates the following relationship between H and [OH Keep in mind that, like all equilibrium constants, the value of Kw changes with temperature. ▼ Part A What is the H concentration for an aqueous solution with pOH 4.50 at 25 ° C? Express your answer to two significant figures and include the appropriate units....
At a certain temperature this reaction follows second-order kinetics with a rate constant of 12. M1-1 2H,PO4 (aq) + P,0, (aq) +3H,0(aq) Suppose a vessel contains H,PO, at a concentration of 1.42 M. Calculate how long it takes for the concentration of H,PO, to decrease by 92.%. You may assume no other reaction is important. Round your answer to 2 significant digits. 0 X ?
A) Write an equation for the reaction in which H2C6H7O5^-(aq) acts as a base in H2O(l) B) Write an equation for the reaction in which H2C6H7O5^-(aq) acts as an acid in H2O(l) C) A solution in which [H+] is 1000 times greater than [OH−]. Express the molarity to two significant digits. D) At a certain temperature, the pH of a neutral solution is 7.53. What is the value of Kw at that temperature? E) If a solution of HFHF (Ka=6.8×10−4)...
H2O2(aq)⟶H2O(l) + 1/2 O2(g) a. The above chemical equation is for a first-order reaction. At 302 K , the rate constant equals 8.5×10−4s−1. Calculate the half-life at this temperature. Express your answer to two significant figures and include the appropriate units. b. If the activation energy for this reaction is 75 kJ/mol, at what temperature would the reaction rate be doubled? Express your answer as an integer and include the appropriate units.
Consider the following reaction:
2 ClO2(aq) + 2 OH-(aq)
ClO3-(aq) + ClO3-(aq) +
H2O(l)
(a) The rate law for this reaction is second order in
ClO2(aq) and first order in OH-(aq). What is
the rate law for this reaction?
Rate = k [ClO2(aq)] [OH-(aq)]
Rate = k [ClO2(aq)]2
[OH-(aq)]
Rate = k [ClO2(aq)]
[OH-(aq)]2
Rate = k [ClO2(aq)]2
[OH-(aq)]2
Rate = k [ClO2(aq)]
[OH-(aq)]3
Rate = k [ClO2(aq)]4
[OH-(aq)]
(b) If the rate constant for this reaction at a certain...