Discussion Week 7 + Tut7

Cc.80.

Name: Lyna Ammi Date: 1/26/2022 Section: 02L Data Report Sheet: The Reaction of Methyl Violet with NaOH: A Kinetic Study 3. What is the value of k"?

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16- S || CH;-C -NH, + H0 → H,S + CH;-C -NH, The hydrolysis of thioacetamide is used to generate H2S as shown by the equation above. The rate of the reaction is given by the rate law as follows: || rate = k[H*][CH3-C -NH2] Consider a solution which is 0.10 molar in H+ and 0.10 molar in thioacetamide at 25° for each of the changes listed in (1), (2) and (3) below, state whether (a) the rate of reaction increases, decreases or remains the same. (b) the numerical value of k increases, decreases or remains the same. (1) Sodium acetate is added to the solution. (2) The solution is heated to 75°C. (3) Water is added to the solution. Give a brief explanation for each of your answers.

Q4. A solution of 0.20 M in monomer and 4.0 x10-3 M in a peroxide inititator is heated at 60°C. How long it take to achieve 50% conversion ? kp = 145 Lmol1 s1. k= 7.0x107 mol's1, f=1 and the initiator half-life is 44 h.

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← N Netflix E × E ro-c V INT Document 30: Priv Ter с why is h30 positive - Google Sex b Success Confirmation of Quest x | + learn.canterbury.ac.uk/ultra/courses/_19017_1/outline/edit/document/_3531875_1?courseld=_19017_1&view=content X Predict the product of the following reaction and propose a reaction mechanism bly 1) LIAIH in Et₂O 2) H₂O+ Predict the product of the following reaction and propose a reaction mechanism & Canterbury Christ Church University Canterbury Christ Church Univercity 8 K Update: (?

is this a one to one reaction? what does the chemical equation look like? Preparation of Acetanilide NH2 HC NH OH H3C- metting point: 73 MW:102.09amu acetic anhydride mp: G°C mw: 93.134mu mp: 113-15°C mp = 14.2°C mw: 135, 16Gmu acetanilide MW: 60.0samu aniline acetic acid Density: 1.01/AL Calculation checklist for a preparative experiment: Density: 1.022g/mL

This reaction proceeds through a series of two elimination reactions. Which elimination do you believe is rate determining in this process and why?

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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

1. To explain why culture medium is sterilized with higher temperature and short time according to theory of d In K ΔΕ dT moist - heat sterilization: T is the absolute temperature. R.T where E is the activation energy, R is the gas constan

The rate constant of a certain reaction is known to obey the Arrhenius equation, and to have an activation energy E = 50.0 kJ/mol. If the rate constant of this -1 reaction is 4.6 x 10² M¹-s at 83.0 °C, what will the rate constant be at 42.0 °C? Round your answer to 2 significant digits. -1 - M²¹. 0 ? Submit Ⓒ2022 McGraw Hill LLC. All Rights Reserved. Terms of Use | Privacy Center 80°F Mostly cloudy k= Continue e to search 'S x10 X S

Esc 1 Q A The rate constant of a certain reaction is known to obey the Arrhenius equation, and to have an activation energy E=47.0 kJ/mol. If the rate constant of this -1 -1 reaction is 4.9 × 10² M¹s¹ at 189.0 °C, what will the rate constant be at 124.0 °C? Round your answer to 2 significant digits. M V Explanation 81°F Mostly sunny S 2 W 4- @ -S -1 E 3 D + # Check 4 x $ 4 R F4 F 0.9 FS 1⁰57 % T G X F6 6 Y H Ś Q Search F7 & 7 U J LOLO *00 8 8 I F9 K ( 9 F10 O *- L 23 McGraw Hill LLC. All Rights Reserved. Terms of Use | Privacy Center | Accessibility F11 ) 0 P ** : ; W F12 11 { PrtSc [ + 11 = ㄱ 1 Insert } 1 Delete Backspace 1 ►/11 Num Lock olo Enter Ar 1 ?圖□ 留 7 8 Home 4 11:41 AM 2/27/2023 4 * 5

Q:4-1 Consider the following reaction: 2 NO(g) + 2 H2(8) → N;(g) + 2 H,O(g) (a) The rate law for this reaction is first order in H, and second order in NO. Write the rate law. (b) If the rate constant for this reaction at 1000 K is 6.0 × 10ª M¯²s¯!, what is the re- action rate when [NO] = 0.035 M and [H,] = 0.015 M? (c) What is the reaction rate at 1000 K when the concentration of NO is increased to 0.10 M, while the concentration of H, is 0.010 M? (d) What is the reaction rate at 1000 K if [NO] is decreased to 0.010 M and [H,] is increased to 0.030 M? %3D Q:4-2 The iodide ion reacts with hypochlorite ion (the ac- tive ingredient in chlorine bleaches) in the following way: OCI- + I- –→ OI¯ + Cl¯. This rapid reaction gives the following rate data: [OCI¯] (M) [I-] (M) Initial Rate (M/s) 1.5 X 10-3 1.5 X 10¬3 1.36 X 10¬4 3.0 × 10–3 1.5 X 10–3 2.72 X 10¬4 1.5 × 10-3 3.0 × 10-3 2.72 X 10¬4 (a) Write the rate law for this reaction. (b) Calculate the rate constant with proper units. (c)…

Rate = -(Delta[RCl])/Delta t andln[RCl]t=-k*t+ln[RCl]0 < [R-Cl]-time equation Test tube A = 0.30 of 0.10M NaOH(aq), 6.70ml DI H2O & 1 drop of bromophenol bue Test Tube B = 3.00M of 0.10M R-CL in acetone. Mix together in 3 water baths Bath A Trial 1= 20C, 53.6s Trial 2= 20C, 49s for color to changeBath B Trial 1= 32C, 18s Trail 2= 32C, 20s Bath C Trial 1= 10C, 204s Trial B= 10C, 200sQ.6 Rearrange the Arrhenius equation into a linear form relating k and TQ.6a To determine Ea, a graph of (xaxis) ____ (in units of ___) vs. (yaxis) ____ needs to be made. This will yioeld a _____ line with a slope = ____ Q.6b enter values used in the table Q.6c Determine the exp. values of Ea with correct sig figs and units

17 pts Bookmarks Window Help Macmillan Learning Question 20 of 32 > tv Q $ #4 ↑ © Macmillan Learning 57776 0=0 H achieve.macmillanlearning.com H-C-OH reduction H-C-OH H₂C-OH OCT 11 MacBook Pro 29 <6 Reaction B Ċ Chapter 6 HW - General, Organic, and Biological Chemistry for Health Sciences - A- Resources ? Hint Submit Select Draw Templates More Erase // C 0 H G 8* ( H 0 H H➡C OH | | A OH H₂C ―OH 9 0 Q2Q

For the gas phase isomerization of cis-cyanostyrene, cis-C6H5CH=CHCN_trans-C%HşCH=CHCN the rate constant at 677 K is 5.01x10-4 51 and the rate constant at 717 K is 3.39x10-35-1. What is the activation energy for this reaction? kJ/mol

What is the mechanism and product for this reaction?