Your lab is studying the decomposition of potassium thiocyanate in aqueous solution. At 22.15°C, you find...
Your lab is studying the decomposition of potassium thiocyanate in aqueous solution. At 22.15°C, you find that the rate law constant is 0.427 M-2min-1. One of your labmates has found that at 14.29°C the rate law constant is 0.0527 M-2min-1. What is the activation energy for this reaction? Report your answer in kilojoules per mole, kJ/mol, and use R = 8.314J/mol*K in your calculations.
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Your lab is studying the decomposition of potassium thiocyanate
in aqueous solution. At 22.15°C, you find...
Your lab is studying the decomposition of potassium thiocyanate in aqueous solution. At 24.21°C, you find...
Your lab is studying the decomposition of potassium thiocyanate in aqueous solution. At 24.21°C, you find that the rate law constant is 0.413 M-2min-1. One of your labmates has found that at 12.13°C the rate law constant is 0.0525 M-2min-1. What is the activation energy for this reaction? Report your answer in kilojoules per mole, kJ/mol, and use R = 8.314J/mol*K in your calculations.
Run at 25.00 °C, the rate constant was found to be 2.300 X 10^-5 1/M sec....
Run at 25.00 °C, the rate constant was found to be 2.300 X 10^-5 1/M sec. Run at 30.00 °C, the rate constant was found to be 3.621 X 10^-5 1/M sec. Calculate the activation energy (Use R=8.315 J/K mol), with units of KJ/mole, and report the answer to 3 significant figures.
The decomposition of nitramide in aqueous solution at 25 °C NH2NO2(aq)------->N2O(g) + H2O(l) is first order...
The decomposition of nitramide in aqueous solution at 25 °C NH2NO2(aq)------->N2O(g) + H2O(l) is first order in NH2NO2. During one experiment it was found that when the initial concentration of NH2NO2 was 0.458 M, the concentration of NH2NO2 dropped to 0.117 M after 21860 s had passed. Based on this experiment, the rate constant for the reaction is _________s-1.
6 The decomposition of ozone in the upper atmosphere is catalyzed by NO. The overall reaction...
6 The decomposition of ozone in the upper atmosphere is catalyzed by NO. The overall reaction and rate law are: rate k[O][NO] Os(g)+O(g)+20;(g); Write a possible mechanism that is consistent with rate law and identify an intermediate in the reaction. 7. A possible mechanism for the iodide ion catalyzed decomposition of hydrogen peroxide in aqueous solution is: -slow H2O:(aq) +I(aq)H;O(1) + 0I°(aq) -fast H20:(aq) +Or(aq)H:O()) +02(g)+l'(aq) What is: iv) the catalyst? iv) the intermediate ii) the rate law i) the...
Data Collection Table for Part C (This information needs to be in your lab notebook before you come to lab. You will fi...
Data Collection Table for Part C (This information needs to be in your lab notebook before you come to lab. You will fill in the data directly into your notebook as you complete the lab.) 24.2 23.7 30.4 6.45 Initial Temp. of HCI Initial Temp. of NaOH Final Temp. of Mixture AT solution solution qreaction Number of moles of water formed AHrxn (reaction / moles water) (units: kJ/mol) Calculate AT solution, (average the initial temperatures of HCl and NaOH as...
2) 20 points in the lab you studied the decomposition of peroxide in ACIDIC solution If...
2) 20 points in the lab you studied the decomposition of peroxide in ACIDIC solution If the reaction is run under BASIC conditions a different result is obtained. 2 H2O2(aq) + 2 H2O(l) + O2(g) The rate of reaction can be determined by measuring the rate at which the volume of O2 increases at a pressure of latm. Use the data below to determine the rate law including! the value of the rate constant, “rate =k [H2021 [ITY". Show your...
please 6. The decomposition of ozone in the upper atmosphere is catalyzed by NO. The overall...
please
6. The decomposition of ozone in the upper atmosphere is catalyzed by NO. The overall reaction and rate law are: O(g) + O(g) 20(8): rate-k[O][NO] Write a possible mechanism that is consistent with rate law and identify an intermediate in the reaction. 7. A possible mechanism for the iodide ion catalyzed decomposition of hydrogen peroxide in aqueous solution is: H:Os(aq) + (aq) → H2O(1) Ol(aq) --- -slow H2O2(aq) + Ol'(aq) → H2O(1) + O2(g) + l'(aq) ------fast What is:...
A reaction has a rate constant of 1.21×10−4 s−1 at 25 ∘C and 0.226 s−1 at...
A reaction has a rate constant of 1.21×10−4 s−1 at 25 ∘C and 0.226 s−1 at 77 ∘C . Part A Determine the activation barrier for the reaction. Express your answer in units of kilojoules per mole and with 3 significant figures. Ea E a = nothing kJ/mol Request Answer Part B What is the value of the rate constant at 18 ∘C ? Express your answer in units of inverse seconds (s−1) and with 3 significant figures. k k...
In a study of the decomposition of nitramide in aqueous solution at 25 degree C NH_2NO_2(aq)...
In a study of the decomposition of nitramide in aqueous solution at 25 degree C NH_2NO_2(aq) rightarrow N_2O(g) + H_2O(1) the concentration of NH_2NO_2 was followed as a function of time. It was found that a graph of ln[NH_2NO_2] versus time in seconds gave a straight line with a slope of -6.72 times 10^-5 s^-1 and a y-intercept of -0.863. Based on this plot, the reaction is order in NH_2NO_2 and the rate constant for the reaction is s^-1.
An aqueous CaCl2 solution has a vapor pressure of 80.2 mmHg at 50 ∘C. The vapor pressure of pure water at this temperature is 92.6 mmHg. What is the concentration of CaCl2 in mass percent? A hypotheti...
An aqueous CaCl2 solution has a vapor pressure of 80.2 mmHg at 50 ∘C. The vapor pressure of pure water at this temperature is 92.6 mmHg. What is the concentration of CaCl2 in mass percent? A hypothetical solution forms between a solid and a liquid. The values of the thermodynamic quantities involved in the process are shown in the following table. Action Enthalpy separation of solute 11.5 kJ/mol separation of solvent 21.8 kJ/mol formation of solute-solvent interactions -86.7 kJ/mol solute...
6 The decomposition of ozone in the upper atmosphere is catalyzed by NO. The overall reaction and rate law are: rate k[O][NO] Os(g)+O(g)+20;(g); Write a possible mechanism that is consistent with rate law and identify an intermediate in the reaction. 7. A possible mechanism for the iodide ion catalyzed decomposition of hydrogen peroxide in aqueous solution is: -slow H2O:(aq) +I(aq)H;O(1) + 0I°(aq) -fast H20:(aq) +Or(aq)H:O()) +02(g)+l'(aq) What is: iv) the catalyst? iv) the intermediate ii) the rate law i) the...
Data Collection Table for Part C (This information needs to be in your lab notebook before you come to lab. You will fill in the data directly into your notebook as you complete the lab.) 24.2 23.7 30.4 6.45 Initial Temp. of HCI Initial Temp. of NaOH Final Temp. of Mixture AT solution solution qreaction Number of moles of water formed AHrxn (reaction / moles water) (units: kJ/mol) Calculate AT solution, (average the initial temperatures of HCl and NaOH as...
2) 20 points in the lab you studied the decomposition of peroxide in ACIDIC solution If the reaction is run under BASIC conditions a different result is obtained. 2 H2O2(aq) + 2 H2O(l) + O2(g) The rate of reaction can be determined by measuring the rate at which the volume of O2 increases at a pressure of latm. Use the data below to determine the rate law including! the value of the rate constant, “rate =k [H2021 [ITY". Show your...
please
6. The decomposition of ozone in the upper atmosphere is catalyzed by NO. The overall reaction and rate law are: O(g) + O(g) 20(8): rate-k[O][NO] Write a possible mechanism that is consistent with rate law and identify an intermediate in the reaction. 7. A possible mechanism for the iodide ion catalyzed decomposition of hydrogen peroxide in aqueous solution is: H:Os(aq) + (aq) → H2O(1) Ol(aq) --- -slow H2O2(aq) + Ol'(aq) → H2O(1) + O2(g) + l'(aq) ------fast What is:...
In a study of the decomposition of nitramide in aqueous solution at 25 degree C NH_2NO_2(aq) rightarrow N_2O(g) + H_2O(1) the concentration of NH_2NO_2 was followed as a function of time. It was found that a graph of ln[NH_2NO_2] versus time in seconds gave a straight line with a slope of -6.72 times 10^-5 s^-1 and a y-intercept of -0.863. Based on this plot, the reaction is order in NH_2NO_2 and the rate constant for the reaction is s^-1.
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