Lab Report 5

Please upload your full solution to the following problem. For the experimental isotherm data given below, determine the Freundlich and Langmuir isotherm parameters. Apply linear regression to determine the isotherm parameters. A spreadsheet can be used for this purpose. Which of the two isotherms better describes the data? Experimental data: Carbon type: F-400 Carbon size: 200 × 400 . Chemical: Trichloroethene, C₂HCl3 (131.39 g/mol) Temperature: 13 C pH: 7.5-8 Equilibrium time: 31 days ● Ⓡ B B Sample number 123456 TCE Liquid-Phase Concentration CA. μmol/L 23.6 6.67 3.26 0.322 0.169 0.114 TCE Adsorbent-Phase Concentration 9A, μmol/g 737 450 318 121 85.2 75.8 2

Please send me the question in 20 minutes it's very urgent plz

Experiment 16-Pre-Lab Assignment Name: 1. Design a preliminary procedure including sample calculations to determine the heat of neutralization for the reaction between 1.0 M HCl and 1.0 M NAOH in kJ/mol. Use your knowledge of the chemicals, their properties, and the laboratory techniques learned thus far in this course. Any chemicals and equipment that you require will be provided in the lab. This procedure must be approved by your instructor before you can begin experimentation. unpe 16-3

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

Question attached as photo.  This is not a exam/ test question:) you can see that our prof has written sth on this question, it is a question that he wants us to practice on our own in lecture. Thanks Topic related to 1st order/ 2nd order kinetics, need excel/graph to do this question, need TWO plots to check whether they are 1st/2nd order concentration = activity * m (concentration is proportional to activity plus a constant m) 1/[A] =1/[A]0 + Kt 1/[Activity* m] = 1/[Activity0 *m] +Kt 1/[Activity] =1/ [Activity]0 + mKt Do we follow the equations of zeroth, 1st, 2nd order reactions?  What is the key idea to determine whether this data gives 1st or 2nd order kinetics? Our prof was saying that if it's linear graph, means it is in correct order. BUT i have plotted 3 datas, two of them looks kinda linear to me. (the 2nd order and zeroth order graph are similar) If we are choosing from zeroth/2nd order, how do we determine its order if it's line is similar in linearity?

1. This question is adapted from Harris 19-D. Carnosine is a dipeptide whose antioxidant properties protect cells from free radicals. Carnosine was determined by derivatization with naphthalene-2,3-dicarboxyaldehyde and cyanide followed by fluorescence detection using excitation at 445 nm and emission at 490. Quantification was by standard addition. To four aliquots of 20-ul cell lysate were added volumes of 100µM carnosine standard to generate final concentrations of 0, 1.0, 2.5, and 5.0 µM added carnosine. Solutions were diluted to 70µl before addition of 15µl of 5 mM naphthalene-2,3-dicarboxyaldehyde and 15µl of 10 mM NaCN. H H2N. OH Carnosine HN. Naphthalene-2,3- dicarboxyaldehyde Cyanide OH Fluorescent product HN. Fluorescence intensity Concentration (uM) of added carnosine in final 100 µL 0.0 0.465 1.0 0.698 2.5 1.029 5.0 1.651

tal v أنظمة التلم الإلكترولي Old Courses Time left 0:32:54 Using the following information in the table below, the best solvent to extract A from water is Compound Solubility in g, per 100 g of solvent Water Dichloromethane Ethanol Acetone 2 8. 12 14 2 10 7. 11 O a. Dichloromethane O b. Water Oc. Acetone O d. Ethanol TOSHIBA INS & 50 6 1 7 V 8A94

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? Be sure to show your calculations. Arrhenius Plot -8 -10 -12 -14 -16 -18 0.0026 0.0028 0.0030 0.0032 0.003 1/T In (k)

Part C Estimate AH for the reaction. нн H. H-N-N-H+ Cl-CI2H-Ń-CI Express your answer using one significant figure. ? AH = kJ Submit Request Answer < Return to Assignment Provide Feedback Master.. Spotify.. Formal.. amazon B. 88

please show work or why you chose that answer   thankyou so much!

I got #8a correct, but #8b is incorrect and I can’t figure out why? Please help.

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Qno3 solve please dont reject. Fill all and asignmnt list also fill dont reject okk

Reaction Cone, Nayd 0 Cine. HCI 4Als. AIme (3) 0.10 M I1.3085840 • 30M 0.4563164 |0.028 F0913 115 M 12267196|0.01870913 30M |1.5360817 O.300349 65.56796607 5. 11431671 0.10 M 3 d.050 M 4 0.025 M 0:30M 1.3686611 1.007568 1,358380874 2. Compare the rates of reactions 1 and 2. What is effect on the reaction rate of halving the acid concentration? What is the order of the reaction in hydrochloric acid?

X app.101edu.co # 3 E UL Week 7: Panopto DII 0 F3 $ R F4 X UL LTU 7-1A Identify the best conditions to complete the SN2 reaction shown below. H % 5 T N3 گیا QL FS A 6 Y Question 18 of 24 40 X F6 & 7 C|Chegg.com U F7 8 A) CH3I, THF B) NaCN, DMSO C) NaN3, ethylamine D) KI, THF X + E) NaN3, DMF PrtScn FB Home ( 9 F9 O ) End 0 & 3 ENG F10 P PgUp - F11 Tp S <10) 1 PgDn D + 6:16 PM 10/18/2022 F12

Table 2:  Molarity of H2O2 and KI and Reaction Rate Trial H2O2 Concentration, M KI Concentration, M Reaction Rate(Reciprocal Slope) 1 0.29 M 0.40 M 14.08 2 0.29 M 0.20M 25 3 0.023 M 0.40 M 20     Please help me with this part, and please show me all steps  Order with respect to H2O2: Order with respect to KI:

Second-degree Equation  Step 1. Copy the given table on your graphing paper, after your student details.  X (% concentration)  0.50  1.00  1.50  2.00  2.50  3.00 Y (oil separation)  5.10  3.60  2.60  2.00  1.40  1.00 Log Y               Step 2. Initially plot the x and y values on a regular graphing paper (or millimeter graphing paper - if available, preferred for  precision). Label then connect the points to observe curved line.  Step 3. Since the line is curved, the y-intercept cannot be easily determined because you can’t exactly determine the  direction of the line once extrapolated. To obtain a straight line, first, compute the logarithm values of all the y values up to  the 2nd decimal place (for the purpose of easy plotting later) and fill in the table.   Step 4. On another graphing paper, plot then label the x and log y. Using a dotted line, extrapolate the straight line to the y axis. Label this point as “a” for the y-intercept.  Step 5.…

With the images attached please write 3 paragraphs 1st paragraph: objective stated clearly 2nd paragraph: complete condense method describe 3rd paragraph: analysis explained Please please please answer everything it's very important please answer super super fast Make sure to write everything in 3 paragraphs Don’t forget get to write it in paragraphs

Explain how changing Experimental Volume impacted the kinetics of the reaction. Compare to your prediction. Be concise. ( in short sentence)

Hello! I need the answer of question attached. Also, I need a short explanation about why should it be like that. Thanks...

Can you please complete and check if the answers are correct!!! Thank you in advance!!

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In Experiment 4- Chemical Kinetics “The Rate of Chemical Reaction”, the following data were obtained:      Rxn Mixture     time(s)            temperature (˚C)      1                        190                  23.0      2                        378                  23.0      3                        97                    23.0      4                        205                  23.0      5                        44                    23.0      6                        90                    35.0 Concentrations and portions for reaction mixture number one: H2O 0.050 M Buffer 0.050 M KI (mL) 0.1% Starch (mL) 0.0450 MNa2S2O3(mL) 0.8525 M H202  (mL) 75.0mL 30.0mL 25.0 5.00 5.00 10.00 Use the data above to answer the following questions where applicable. (a) Write the formulas of the reactants, there are three, in the reaction being studied.Signs + or - or subscripts may be entered all on the same line; S2O32- can be entered as S2O3^2-, the symbol, ^,  is not required if the…

Using the graph below, determine the time it will take for half of the reagent present at t = 60 sec to react. b.  196 s c.  256 s d.  120 s e.  60 s

Would the exponents, m and n, in your rate expression be larger than, smaller than, or unchanged from the correct values as a result of each of the following mistakes?  Indicate clearly your reasoning. Experiment 3: 20.0mL of 0.10M KI, 5.0mL of distilled water, 5.0mL H2O2 rate = k[H2O2]m[I-]n a) A leak occurred around stopper A in the mouth of the Erlenmeyer flask during experiment 3.