Chapter 17 - Electrochemistry

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Starting with [CV] = 1.0x105 M and [NaOH]; = 0.050 M, a set of their reaction kinetics data was collected over 3 minutes and plotted as shown below, In[CV+] -11.4 -11.6 -11.8 -12 -12.2 -12.4 -12.6 -12.8 0 20 40 Crystal Violet Kinetics First Order 60 80 100 time (sec) k = 120 140 160 y = -0.0059x - 11.587 R² = 0.9987 180 The line fit data are represented by the first-order integrated rate law: [CV] = [CV]oekt Use the values obtained by the line fit of [CV*]o and k from for all the following calculations. Write these parameters below, rounded to 2 significant figures with units! [CV] = 200 Is the concentration of crystal violet at the time of mixing identical to the initial concentration calculated from the graph (at the beginning of data collection)? Why? Calculate the instantaneous rate of crystal violet consumption at the beginning of the data collection, t = 0 seconds. Rateo k[CV]o =

If I am given the attached information how would I go about finding the rate order for Iodine?

Table 1 Experiment Temperature of solution Exp k 273 Time for Color change(s) 12345 6 1457 278 1077 288 485 293 359 298 208 303 (equation 6)= k, = 2. 3. n In 1- 47 Determine the value of n (Equation (6)) from the concentrations of the solutions. Plot In 11/n versus 1/T and determine the activation energy for the reaction from the slope. Include the graphs in your report. 4. Determine the pre-exponential factor A from the intercept of your graph. 5. Determine the rate constants k₁ and k₂ at 25°C.

A • OPO =- # --B-E-1 I X. II. Iron Thiocyanate System (Watch video) Stress None (CONTROL) Addition of Fe(NO3)3 Addition of KSCH Addition of Na₂SO, Addition of NaCl Addition of Fe¹3 {pale yellow} + SCN¯ → FeSCN¹2 {red} + heat Observations (Color Change?) Initial Color. M Post-Lab Question Table options Explain using Le Chatelier's Principle AgNO3 Notes: Na₂SO, reacts with Fe³+ to form a complex of ions, removing Fe³+

Use the space below for reactions and mechanisms

15. An enzyme catalyzes the reaction A --> B. The initial rate of the reaction was measured as a function of the concentration of A. The following data were obtained: See diagram What is the value of V0 when [A] =43? - 37 nmoles/min - 20 nmoles/min - 50 nmoles/min - 40 nmoles/min - 30 nmoles/min

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y courses / S22 CHEM 161_01_04 / 27 March - 2 April/ Quiz 9 Time left 0:53:13 Calculate the mass of oxygen that will be prepared through the decomposition of 50 kg of potassium chlorate ( KCIO3 , Molar mass= 122.55 g/mol) 2 KCIO3 →2 KCI + 3 O2 Select one: O a. 612 kg O b. 12.25 kg O c. 9.8 kg O d. 19.6 kg Next page

Correct answers given in second picture!!! Please just show me how to get them

Gb6cd_i-5c7IV_IVquz8U4UO2epq7z4kBnpYZ5iA/edit > 2 ons Help Calibri - - [12] + B 7 U . UA 2 3 ge 2: Problems of Water and Air Quality Questions 1. Why is it recommended to have a carbon monoxide detector on each floor of a home? Et © ª @ E- E 4-B-E- 2. What impact would the increased use of electric vehicles have on environmental damage caused by acid rain? 3. Why is ground level ozone most likely to reach its highest concentrations on hot, sunny days during periods of heavy traffic in large cities? Page 3: More Air Pollution Issues: Questions 4. The COVID-19 pandemic forced many people to work from home for extended periods. During these periods, many cities reported unusually low levels of smog. Suggest an explanation for this observation. Page 4: Water Pollution: Questions 5. Explain how ozone can be both harmful and beneficial. 6. India relies heavily on burning coal to generate electricity. How does India's reliance on coal contribute to the poor air quality experienced in many of…

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Application of Material 100 Okay, you can get out your books, notes, or whatever else you would like (okay, except other people). Show your work, as I will give credit for anything you do correctly (if you are need it is easier for me to determine if you do something correctly). If you need to make assumptions, specify what they are. 1. A reaction 2A+B P was determined to be 2/3 order with respect to B, and Oth order with respect to A, with a rate constant of kr 3.892 x 10-5 M1/3 s-1. (35 points) = - (a) For this reaction, derive the integrated rate law with respect to A, B, and P. (b) For this reaction, determine the amounts A, B, and P present after 500, 1000, 1500, 2000, 2500, and 3000 seconds (assuming no intermediate exists). [A] = [B]o = 1.00 x 10-2M. (You might want to use excel or similar software to do this. (c) Based on your data, use excel or similar software to prepare a plot of concentration vs time for A,B, and P. (d) Determine the rate constant for the reaction. (e)…

A student completed the lab and obtained the following concentration vs rate data: Trial [CV*L (M) [OH-1L(M) Rate 1st 30 sec(M/s) 1.00E-05 5.00E-03 6.290E-09 4.00E-06 5.00E-03 2.610E-09 3 1.00E-05 1.00E-03 1.320E-09 Based on their data, complete the following regarding the rate order dependence and rate law. Give your answer as a decimal to the nearest hundredth. [CV*] (OH'] Rate=k[CV*] [OH']

help me here please, this is my last attempt. Thanks!

What happen to the glowing wood splint when it is inserted inside the test tube?

tes (18) ades Chemistry: Q4: 2022-23 | e 4.4Be + 2He→ 6C+ Ⓒin O On O in 9 Sie le

I need help with part C, please show all work thank you!!!

You continue with the Arrhenius Plot with the slope of the curve to be approximately -12,500 K and the Arrhenius factor of 4.367 E10 hours^-1. What is the shelf life of the drug at 22 C? What is the shelf life at 4 C? Did your coworker achieve a century shelf life in either storage condition? Be sure to show your calculations. Arrhenius Plot In (k) -8 -10 -12 -14 -16 -18 0.0026 0.0028 0.0030 1/T 0.0032 0.003