Juan performed the same chemical reaction twice. His data from the first at-tempt is indicated by the red line. His data from the second attempt is indicatedby the blue line.Energy During a Chemical ReactionEnergyABreactantse.g. C6H12O6 + O₂Cwithout enzymeJuan added pressure.with enzymeReaction coordinateWhat change did Juan most likely make to his reaction the second time he per-formed it?activationenergy withenzymeD Juan added a catalyst.Juan increased the surface area of the reactants.Juan cooled his reactants.activationenergy withoutenzymeoverall energyreleased duringreactionproductsCO,+H,O

From the above diagram it is clear that overall energy released during the reaction for both…

Juan performed the same chemical reaction twice. His data from the first at- tempt is indicated by the red line. His data from the second attempt is indicated by the blue line. Energy During a Chemical Reaction Energy reactants e.g. C6H12O6 + O₂ without enzyme with enzyme activation energy with enzyme Reaction coordinate activation energy without enzyme overall energy released during reaction products CO,+H,O What change did Juan most likely make to his reaction the second time he per- formed it?

Juan performed the same chemical reaction twice. His data from the first at- tempt is indicated by the red line. His data from the second attempt is indicated by the blue line. Energy During a Chemical Reaction Energy reactants e.g. C6H12O6 + O₂ without enzyme with enzyme activation energy with enzyme Reaction coordinate activation energy without enzyme overall energy released during reaction products CO,+H,O What change did Juan most likely make to his reaction the second time he per- formed it?

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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NHẠNCO rearranges in water to form urea. The following data are obtained at 50. °C. Time (hr) [NHẠNCO] (M) 0.500 1.0 0.375 2.0 0.300 3.0 0.250 5.0 0.188 7.0 0.150 9.0 0.125 At 25 °C, the concentration falls from 0.500 M to 0.300 M in 6.0 hrs. Determine the activation energy. If needed, you the graph paper below as many times as necessary.
The enzyme examase catalyses the following reaction, A - B where A is the reactant and B is the product A595 measurements were used to determine the catalytic activity of examase by measuring the rate at which B is produced. From this, the activity of the enzyme was determined to be 42 µmol/mL per minute. A standard albumin solution (concentration = 10 mg/mL) was used to prepare a standard curve of Abs595 vs amount of protein in mg. The protein assay was also performed using 100 uL of a 1 in 10 dilution of the original examase sample. For the absorbance measurements, it was determined that the sample used in the A595 measurement contains 1.2 mg of examase. Which of the following statements correctly gives the specific activity of examase? 1.0.35 U/mg O 2.0.035 U/mg 3. 5040 U/mg O 4.35 U/mg O 5.3.5 U/mg
Using this graph, what can be determined about the effect of enzyme concentration on the initial rate of the reaction and on the amount of product formed?
[RCOOH], M [R’OH], M [HA], M Initial Rate, M-min 23. 0.35 0.35 0.50 4.60 0.62 0.35 0.50 8.14 0.35 0.81 0.50 10.6 0.35 0.50 0.75 9.84 Rate = k[RCOOH][R'OH] Rate = k[RCOOH][R'OH][HA] Rate = k[RCOOR']/{[RCOOH][R'OH]} Rate = k[R'OH] Rate = k[RCOOH] 26. The initial reaction rate for the reaction in question 23 can be followed spectrophotometrically by quenching the reaction and determining the amount of R'OH left by its reaction with the dichromate ion, Cr20-2-. Write a balanced equation for the reaction of Cr20,2- with R'OH in acid solution. For simplicity, you may assume R' is an ethyl group (CH3CH2) and the products of the reaction are Cr3+ and CH3COOH. ЗСНЗСН20Н() + 2Cr2072-(аq) + 16H+{аq) + 3СНЗСООН() 4C13+(aq) + 3CH3COOCH3(I) + 14H2O(1) --> 3CH3CH2OH(I) + 2Cr2072-(aq) + 16H+(aq) ЗСНЗСООН() + 11Н20() 4Cr3+(aq)+ + --> --> 4CR3+(aq)++ 3CH3CH2OH(I) + 2Cr2072-(aq) + 5H2O(I) ЗСНЗСООН() + 160H-(аq) CH3CH2OH(I) + Cr2072-(aq) 2Cr3+(aq)+ + CH3COOH(I) --> СНЗCН2ОH() + Cr2072-(aq) Cr3+(aq)+ +…
Question 20 of 20 Determine the activation energy for the redox reaction Q2* + 2 R3t → Q4* + 2 R2*. Rate Constant Temperature kJ/mol 3.12 x 103 M-1s-1 275 K 1 2.70 x 104 M-1s-1 300 K 6. C +/- 0. x 100 MacBook Pro DII DD 000 000 F11 F12 F9 F10 esc F7 F8 F4 F5 F6 F1 F2 F3 & ! # 2. 8. 7, %24
the change in temp from 10°C to 20°C is found to double the rate of a particular chemical reaction how did the chnage in temp affect the reaction
Use the following data set for questions 3 and 4: A(aq) + B(aq) → Products Rxn # [A] [B] Rate of Loss of A 1 0.12 0.10 8.4 x 10-6 0.12 0.20 1.7 x 10-5 0.24 0.10 3.4 x 10-5 3. Determine the orders of reaction (m and n) for reactants A and B. Explain how you came to this conclusion or show your work. 4. Determine the rate constant (k) for the reaction above.
What can contamination of reagents leads to? Unreliable results Reliable results Reproducible results Good results Catalase is the enzyme found in potatoes and It decomposes hydrogen peroxide (H202) to form water and oxygen gas. H202 + catalase - ----> H2O + 02 +E. The reaction is maintained at temperature 40 degree Celsius and there was a formation of bubbles. Based on the enzymatic reaction given, What do you think is the substance responsible for the formation of bubbles? Oxygen gas Hydrogen gas no reaction, because the enzyme catalase will be deactivated no reaction, because the enzyme catalase will be denatured Other: Based on the Fehling's test video, do you think the sugars ribose (in RNA) and the deoxyribose (in DNA) will both form a positive result (red precipitate) No Yes