e the entropy change AS universe for the following reaction, at 25 °C.
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- Be sure to answer all parts. Calculate the equilibrium constants for decomposition of the following hydrogen halides at 298 K. Enter your answers in scientific notation. (a) 2HF(g) H2(g) + F2(g) 0.5 x 10 -97 (b) 2HCl(g) H2(g) + Cl2(g) 3.8 LOL -34 (c) 2HBr(g) H2(g) + Br2(g) 4.9 LO -20 (d) 2HI(g) H2(g) + I2(g) 1.1 -39026238page=9 La-donya 021 Exam Containers Undergraduate Exam Only Containers | S1, 2020/21 EXAM CHEM0901 | S1 2020/21 mistry) ISTRY A If the enthalpy of standard formation enthalpies of CO and CO, are -110 kJ mol and -393.5 kJ mol, respectively, what is the enthalpy change for the reaction? co+1/20 CO. (e) Select one O a 283.5 kJ mo Ob-283.5 kJ mol O C -503.5 kJ mol Od 141 8 k mol 223 pm 10/12/2020 A ENG irsert prt sc delete home 6 8 Y enter H. K pause ctrl altch Select all statements that are correct. Note there might be more than 1 correct statement. From the Lineweaver-Burk plot the equilibrium constant (Keq) can be obtained The Lineweaver-Burk plot gives a more accurate prediction for Vmax than the Michaelis- Menten plot The Lineweaver-Burk plot assumes that products and reactants are present at equal concentrations during the entire time of the reaction The Lineweaver-Burk plot shows velocity of reaction vs substrate concentration The Lineweaver-Burk plot shows 1/velocity of reaction vs 1/substrate concentration O 20°C D) // E
- Find kcat for a reaction in which Vmax is 4 × 10-4 mol•min-1 and the reaction mixture contains one microgram of enzyme (the molecular weight of the enzyme is 200,000 D). Show your work/reasoning.Thank you in advance!Based on the model on the picture, please help me identify these (even with no explanation):1. What is free energy? What is its symbol? 2. For an exergonic reaction, what is the value of △G? 3. For an endergonic, what is the value of △G? 4 What are the factors that affect △G? 5. What is energy coupling? In a coupling reaction, what must be the overall value of △G? 6. What does the cell do with the energy produced from exergonic reactions? 7. What molecule does the cell use as an energy carrier? Draw its structure. 8. Why is it that this energy carrier is considered to be high energy containing phosphate? 9. Bond of this energy carrier of cells is broken through what?ver is given. A +B C+ D 1) Calculate AG for the above react un and indicáte whether the reaction is favorable or unfavorable [A] = 0.9 M 20°C AG° = 4 KJ/mol %3D [B] = 15mM [C] = 4mM [D] = 3 M R= 8.314 J/moleK %3D %3D 4.7 and explain how you know.
- 9:34 AM You sent Help me with this one Select true if the statement is CORRECT and false if OTHERWISE 1. Enzymes are catalysts and increase the speed of a chemical reaction without themselves undergoing any permanent chemical change. 2. Catalysis is defined as the acceleration of a chemical reaction 3. if the amount of the enzyme is kept constant and the substrate concentration is then gradually increased, the reaction velocity will decrease. 4. In the Induced-fit Model, if a dissimilar substance which does not fit the site is present, the enzyme rejects it 5. The Michaelis constant Vo is defined as the substrate concentration at 1/2 the maximum velocity. 6. A prosthetic group - an organic substance which is dialyzable and thermostable which is firmly attached to the protein or apoenzyme portion. 7. The rate of an enzyme-catalyzed reaction increases as the temperature is raised beyond optimum temperature. 8. Enzymes can be classified by the kind of chemical…If 287.9 umol of enzyme X has a Vmax = 47.8 mmol/sec, what is the value of kcat %3D sec-1? Please report answer with 1 decimal place. Please do not report units. Your Answer: Answer units MacBook Air 888 F5 F4 F3 F2 %23 %24 %24Assignment Score: 85,7% Resources x Give Up? O Hint Check Answer Question 6 of 23 > Attempt 5 The given dipeptide is Ala-Ser. Indicate the charge state for each structure at the given pH by adding the + or - charges to the appropriate functional groups and adding or removing hydrogen atoms where appropriate. pH = 1 pH = 7 Select Draw Rings More Erase Select Draw Rings More Erase H. +H H Reset Drawing H. || V C C-O H C - C H. CH, CH, CH, CH, он он, pH = 12 Selact More Frase
- How many net molecules of nucleoside triphosphate (ATP and equivalent molecules) are produced by complete aerobic catabolism of a glucose going through glycolysis, the pyruvate dehydrogenase complex and the citric acid cycle (TCA cycle)? Do not count the ATP eventually generated by re-oxidation of reduced coenzymes, just the number of NTPs produced in reactions of these pathways. Choose the one best answer. 02 03 04 05 06 8Sample pH vs Initial Velocity (AA450/60 seconds) a bo16 0.0014 0.0012 o.001 0.0008 0.0006 0.0004 0 0002 pH Sample what does it mean? Does it agree with what we know about enzyme kinetics and why or why nol? If there were anomalies, what were they and what are some possible reasons for this occurring? Was an optimal pH identifiable? Why or why not? Initial Velocity (AA450/60seconds)a. What is the equilibrium constant for a reaction that is carried out at 25 °C (298 K) with H° = 20 kcal/mol and S° = 5.0 * 10 - 2 kcal mol -1 K-1? b. What is the equilibrium constant for the same reaction carried out at 125 °C?