

![1 Rake a 0.255 disi Rate : 0255 dpa I tila = 5730 years. line - 5730 1 k cs sco@:00.77 = K [ No ] - luz 5730 CamScanner](http://img.homeworklib.com/questions/694ebaf0-dcd0-11eb-ac4f-852e60803250.png?x-oss-process=image/resize,w_560)
![0.255 = k [N] No = No e-kt . t = I lu No - 1 lu 0.255 0.0077 t = 28933.6063 yeart. Scanned with CamScanner](http://img.homeworklib.com/questions/69eddde0-dcd0-11eb-b714-1b189d153b1e.png?x-oss-process=image/resize,w_560)
Need help with these problems What would be the total order for the following reaction: 2H,...
The rate constant of the second order reaction A→4B+2C is 0.599 L mol−1 s−1. What is the half-life of the reaction given that [A] 0 =0.567 mol L−1? Remember to report your answer with the correct number of significant figures.
please someone help me with question 2. thank you
2. For a second-order reaction where Alaal with 0.20 mol/L of A. Baal, the half life is 10.22 min starting A. What is the rate constant? B. How long will it take for 80.0% of a solution of 0.20 M A to react? C. What is the half-life of the reaction when starting with 0.20 MA? Rate = k [A]. – [A]e = kt Rate = k[A] Rate = k[A] k...
7. What is the reaction order for each reactant and the rate coefficient for the following reaction? A+B+C ->Z [A] (mol L B (mol L[C] (mol L ](mol L sec1) 0.010 0.020 0.010 0.020 0.0100 0.0100 0.0200 0.0100 0.10 0.10 0.10 0.20 3.0 x 10-2 3.0 x 102 1.2 x 10-1 1.5 x 10-2
Consider the following reaction: H2 + I2 ➞ 2HI They react by a second-order process, first order with respect to each reactant with k = 0.63 L/(mol*sec). a) What is the initial reaction rate when we add 0.50 g H2 and 0.20 g I2 to a 800. mL vessel? b) How does the reaction rate change (by what factor/amount) when we add 0.10 g I2 to the above mixture?
question 12 & 13
12. The following reaction is second order in respect to CH3COOCH3. The rate constant is 2.0 X 103 L/(mol s), what is the concentration of the CH3COOCH3 after 4 minutes if the initial concentration of CH3COOCH3 is 0.25 M? CH3COOCH3 OH CH3COOCH3OH o inao si odool ni 00 o otil-lipd & aart noisassno shoo Aa noitbe 0 PJE (slow) 20 13. Hydrogen peroxide and iodide ion react in the following steps. H2O2 (aq) I' (aq) I0...
help please
The following chemical reaction: A → products shows second order kinetics with respect to A; rate k[A2 Assume k = 11.88 x 10-5 mol-1 L s-1 If the initial concentration of A is 0.28 mol L-1, what is the concentration of A in mol L-1) after 3.03 hours? You have 5 attempts at this question. Remember: if you want to express an answer in scientific notation, use the letter "E". For example "4.32 x 101" should be entered...
please help me with both. TIA
The following chemical reaction: A → products shows zero order kinetics with respect to A; rate = k[A]º. if k = 9.65 x 10-3 moll's and the initial concentration of A is 0.622 mol L-1, what is the half life of this reaction in minutes? You have 5 attempts at this question. Remember: if you want to express an answer in scientific notation, use the letter "E". For example "4.32 x 104 should be...
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.
5. How much faster would a reaction be if a catalyst is used that lowers the activation energy from 20.0 kJ/mol to 10.0 kJ/mol? Do the calculation at two temperatures: first at 25.0°C and then at 0.0°C. (20 points) (V) Helpful Stuff Thermodynamics: AG° = AH-TAS Nernst Equation: 6 = 6 - (RT/nF)InQ AG=RTIK At 25°C: 8 = 6 - (0.0591/n)logQ AGRT Ke=e AGⓇ =-nF8° Units/Constants: Volt: 1 V = 1 J/C Faraday: 1 F = 96,485 C/mole Arrhenius Equation:...
[time] [Z] 4. Suppose the data shown are for the second order reaction: → products. What is the value of the rate constant k? O min 50.000 atm 6.250 3.333 2.273. 5. For a first order reaction (G - products) with k = 0.173 min', suppose a chemist runs the reaction starting with an initial concentration [G]. = 12.0 M. a. How many minutes will it take for [G] to decrease to 4.70 M? b. What [G] will remain after...