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Question 18 6 pts 18. Catalysts are sometimes used in chemical reactions. a. Explain what a...
29 (6 pts) How do concentration of reactants, temperature and catalysts affect the rate of a chemical reaction? Explain. Concentration of reactants: mcreases more collisions within the reactants. collisions Temperature: Increase in temperature causes increase in more and more energy in collisions. (increases rate? Catalyst: Lowens energy of activation of reactants cate? (increases rutes
Draw The arrow pushing mechanisms of the following reactions: (6pts
each, 18 pts total)
U Draw the arrow-pushing mechanism of the following reactions: (6pts each, 18pts total) U Question 8 6 pts ОН OH Upload Choose a File Question 9 6 pts H,09 Brz Upload Choose a File Question 10 6 pts KOH + Lo & MeOH, Heat Upload Choose a File
Question 02: (20 pts) Two catalysts are being analyzed to determine how they affect the mean yield of a chemical process. Specifically catalyst 1 is currently in use, but catalyst 2 is acceptable. Since catalyst 2 is cheaper, it should be adopted, providing it does not change the process yield. A test is run in the pilot plant and results in the data shown in the table below Observation Number | Catalyst 1 (%) Catalyst 2 (%) 91.50 94.18 92.18...
Name Desk Date _Laboratory Instructor 30 Pre-lab Questions Rates of Chemical Reactions II: Rate and Order of H2O2 Decomposition Before beginning this experiment in the laboratory, you should be able to answer the following questions. 1. What four factors may influence the rate of a reaction? 2. Assume that the rate law for a reaction is rate=AB. a) What is the overall order of the reaction? (b) If the concentration of both A and B are doubled, how will this...
Q1-10pts) a) What is the general principle that describes how enzymes work as catalysts? b) How does an enzyme/catalyst affect the free energy difference between the initial and the final states of the reaction? c) A chemical reaction (A -> B) has a free energy difference AGAB-10 kcal/mol. However, the reaction is slow and in the absence of an enzyme the activation free energy barrier is 12 kcal/mol. If an enzyme increases the reaction rate 1000-fold at 300 K, what...
Part 1: Warm Up (12 minutes) Almost every chemical reaction that occurs in a living thing is catalyzed by an enzyme. The purpose of this exercise is for you to: 1) get a better understanding of the principles of catalysis; 2) gain experience and practice drawing and interpreting reaction coordinate diagrams, and 3) developing a better understanding of how enzymes behave as catalysts. Try to answer questions 1-4 without consulting notes, books, etc. Use each other's knowledge 1. With respect...
Question 26 12 pts Complete and balance the following reactions. Write the complete and net ionic reactions. Include state labels. Write NR if no reaction occurs. → KOH() + Mg(NO3)2() Pb(C2H302)2( ) + NaBr() + Zn() + H2SO4( ) ► Upload Choose a File
2. Enzymes are important biological molecules and they act as catalysts for specific chemical reactions. Their biological function is determined by their 3 dimensional shape and the functional groups present in the active site. (a) What are the main mechanisms by which an enzyme increase the rate of a reaction? (b) What is a cofactor in an enzyme mediated reaction? (c) Give the name of a cofactor (structure if possible) and indicate the type of reaction that it facilitates. 3....
Question 6 10 pts The volume of a cube is increasing at at rate of 20 cm. How fast is the surface area increasing when the length of an edge is 50 cm? Upload Choose a File
D Question 24 6 pts Provide a curved arrow mechanism for the following reaction. You will draw this mechanism separately and then upload a file of your drawing. Your file for this question must be named "Lastname_Firstname_Mechanism" JOH ОН conc. H2SO4 heat on hea se Upload Choose a File