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When, in separate reactions, 2-methylpropene, propene, and ethene are allowed to react with HI under the...
6. Which experimental evidence would not support the Sn2 mechanism for the reaction between (S)-2-bromooctane and...
6. Which experimental evidence would not support the Sn2 mechanism for the reaction between (S)-2-bromooctane and sodium acetylide (aka ethynylsodium)? (A) Only (S)-3-methyl-1-nonyne is observed as a product. (B) The reaction rate decreases tenfold when the concentration of bromooctane is reduced from 1.0 M to 0.1 M (C) The reaction rate doubles when the concentration of sodum acetylide is doubled. (D) The rate of reaction is increased by switching from sodium to potassium acetylide. 7. Which alcohol must undergo a...
1. 2. 3. Balancing Oxidation-Reduction Reactions 1. Assign oxidation numbers. 2. Separate into oxidation and reduction...
1. 2. 3.
Balancing Oxidation-Reduction Reactions 1. Assign oxidation numbers. 2. Separate into oxidation and reduction half reactions. 3. Balance each half reaction using the following steps: a. Balance all elements except oxygen or hydrogen. b. Balance oxygen by adding H20. c. Balance hydrogen by adding H*. d. Balance charge by adding electrons: Electrons go on the RIGHT (product side) for OXIDATION reactions. Electrons go on the LEFT (reactant side) for REDUCTION reactions. e. In BASIC solution, do this additional...
i need 2,3,4,5,and 6. 2. (6 Pts) Write the equilibrium expression, Kp, for the reactions in...
i
need 2,3,4,5,and 6.
2. (6 Pts) Write the equilibrium expression, Kp, for the reactions in problem 1. 3. (8 Pts) At 127°C, Kc = 2.6 x 10-5 for the reaction: 2 NH3(g) + N2(g) + 3 H2(g) Calculate Kp at this temperature. 4. (10 Pts) A 1.00-L flask was filled with 2.00 mol gaseous SO2 and 2.00 mol gaseous NO, and heated. After equilibrium was reached, it was found that 1.30 mol gaseous NO was present. Assume that the...
2. List some familiar adaptations animals have to reduce the effects of temperature extremes on their...
2. List some familiar adaptations animals have to reduce the effects of temperature extremes on their many vital, enzyme-catalyzed reactions. 3. In general, the rates of chemical reactions double for every 10 degrees (Celsius) increase in temperature. What changes at the molecular level account for slower reaction rates of enzyme- catalyzed reactions at high temperatures? (Hint: enzymes are protein molecules. What happens to protein molecules when they are heated?) Why are enzyme catalyzed reactions also slower at low temperatures? (Hint:...
2. hypothesize the best conditions (pH and temperature) under which the enzyme chymotrypsin functions with an...
2. hypothesize the best conditions (pH and temperature) under
which the enzyme chymotrypsin functions with an appropriate
reference. also, hypothesize what will occur in the presence of an
inhibitor and the type of inhibition.
EXPERIMENT 5: ENZYME ACTIVITY WITH a-CHYMOTRYPSIN Prelab Assignment 1. Prepare a flow chart, covering one half of the experimental work (either part A and C if your lab bench is on the window side of the lab or part B and D if your locker is...
Which of the following reactions will undergo an E1 reaction faster? Question 2 Not yet answered...
Which of the following reactions will undergo an E1 reaction faster? Question 2 Not yet answered Points out of 1.0 P Flag question (a) C (b) (c) (d) Select one: O a. (a) 1-bromopentane O b. (b) E-1-bromo-1-pentene c. (C) 3-methyl-3-bromopentane O d. (d) 3-methyl-3-bromo-1-pentene O e. The two fastest of these will have exactly the same rate constant. True or false: When both an SN2 and an E2 reaction are possible, increasing the temperature of the reaction will speed...
Hi everybody,can you help me for problem 4 in the attach . Thank for help! The...
Hi everybody,can you help me for problem 4 in the attach . Thank
for help!
The elementary reversible reaction A + B 2C occurs in the liquid phase in isothermal CSTR. A stream containing equimolar amounts of A and B in a solvent enters. the reactor, and the conversion of A is measured to be 60%. The equilibrium conversion o A under the same inlet conditions is known to be 80%. The volumetric flowrate into the process is to be...
Hi please can you answer 4 questions .. thanks for help Factoes hich Infuence The Rates...
Hi
please can you answer 4 questions .. thanks for help
Factoes hich Infuence The Rates Of Resction Name Date Prelab Question Lab Instructor Lab Section a. List the potential ehemical hazards in this experiment and tell how you wi handle them in order to make this experiment safe for you and others in the laboratory b. List the potential procedural hazards in this experiment and tell how you will handle them in order to make this experiment safe for...
1. In both the sodium iodide test and the silver nitrate test, why does 2-bromobutane react faster...
1. In both the sodium iodide
test and the silver nitrate test, why does 2-bromobutane react
faster than 2-chlorobutane?
Bromine is a better leaving group since it is a weaker base than
chlorine is.
2. a. Why does benzyl chloride react under both
SN1 and SN2 conditions?
Benzyl
chloride is a primary alkyl halide, hence reactive under SN2
conditions.
The
primary carbocation formed due to the departure of Cl- is
stabilized by the pi electrons in the benzene ring.
b. Why is...
_1. An alkyl halide which might be expected to undergo rearrangement under Snl or E1 conditions...
_1. An alkyl halide which might be expected to undergo rearrangement under Snl or E1 conditions is: HZC Br CH3 A. 1 B. | F—CH,BH C. CH3-C-CH-CH, CHz CH3 D. CH3 CH3-C-CH2CH2-Br CH3 E. A Br 2. Your task is to convert 2-chloropentane into 1-pentene. Which reagents would you choose? a) NaOH/H20 b) KOH/CH3OH c) CH3ONa/CH3OH d) CH3CH2ONa/CH3CH2OH e) (CH3)3COK/(CH3)3COH 3. Circle the reaction below which is faster in polar protic solvents. OH,H,O A. CH,CH,CH,Br- CH,CH,CH,OH + Br or SH.RSH...
6. Which experimental evidence would not support the Sn2 mechanism for the reaction between (S)-2-bromooctane and sodium acetylide (aka ethynylsodium)? (A) Only (S)-3-methyl-1-nonyne is observed as a product. (B) The reaction rate decreases tenfold when the concentration of bromooctane is reduced from 1.0 M to 0.1 M (C) The reaction rate doubles when the concentration of sodum acetylide is doubled. (D) The rate of reaction is increased by switching from sodium to potassium acetylide. 7. Which alcohol must undergo a...
1. 2. 3.
Balancing Oxidation-Reduction Reactions 1. Assign oxidation numbers. 2. Separate into oxidation and reduction half reactions. 3. Balance each half reaction using the following steps: a. Balance all elements except oxygen or hydrogen. b. Balance oxygen by adding H20. c. Balance hydrogen by adding H*. d. Balance charge by adding electrons: Electrons go on the RIGHT (product side) for OXIDATION reactions. Electrons go on the LEFT (reactant side) for REDUCTION reactions. e. In BASIC solution, do this additional...
i
need 2,3,4,5,and 6.
2. (6 Pts) Write the equilibrium expression, Kp, for the reactions in problem 1. 3. (8 Pts) At 127°C, Kc = 2.6 x 10-5 for the reaction: 2 NH3(g) + N2(g) + 3 H2(g) Calculate Kp at this temperature. 4. (10 Pts) A 1.00-L flask was filled with 2.00 mol gaseous SO2 and 2.00 mol gaseous NO, and heated. After equilibrium was reached, it was found that 1.30 mol gaseous NO was present. Assume that the...
2. List some familiar adaptations animals have to reduce the effects of temperature extremes on their many vital, enzyme-catalyzed reactions. 3. In general, the rates of chemical reactions double for every 10 degrees (Celsius) increase in temperature. What changes at the molecular level account for slower reaction rates of enzyme- catalyzed reactions at high temperatures? (Hint: enzymes are protein molecules. What happens to protein molecules when they are heated?) Why are enzyme catalyzed reactions also slower at low temperatures? (Hint:...
2. hypothesize the best conditions (pH and temperature) under
which the enzyme chymotrypsin functions with an appropriate
reference. also, hypothesize what will occur in the presence of an
inhibitor and the type of inhibition.
EXPERIMENT 5: ENZYME ACTIVITY WITH a-CHYMOTRYPSIN Prelab Assignment 1. Prepare a flow chart, covering one half of the experimental work (either part A and C if your lab bench is on the window side of the lab or part B and D if your locker is...
Which of the following reactions will undergo an E1 reaction faster? Question 2 Not yet answered Points out of 1.0 P Flag question (a) C (b) (c) (d) Select one: O a. (a) 1-bromopentane O b. (b) E-1-bromo-1-pentene c. (C) 3-methyl-3-bromopentane O d. (d) 3-methyl-3-bromo-1-pentene O e. The two fastest of these will have exactly the same rate constant. True or false: When both an SN2 and an E2 reaction are possible, increasing the temperature of the reaction will speed...
Hi everybody,can you help me for problem 4 in the attach . Thank
for help!
The elementary reversible reaction A + B 2C occurs in the liquid phase in isothermal CSTR. A stream containing equimolar amounts of A and B in a solvent enters. the reactor, and the conversion of A is measured to be 60%. The equilibrium conversion o A under the same inlet conditions is known to be 80%. The volumetric flowrate into the process is to be...
Hi
please can you answer 4 questions .. thanks for help
Factoes hich Infuence The Rates Of Resction Name Date Prelab Question Lab Instructor Lab Section a. List the potential ehemical hazards in this experiment and tell how you wi handle them in order to make this experiment safe for you and others in the laboratory b. List the potential procedural hazards in this experiment and tell how you will handle them in order to make this experiment safe for...
1. In both the sodium iodide
test and the silver nitrate test, why does 2-bromobutane react
faster than 2-chlorobutane?
Bromine is a better leaving group since it is a weaker base than
chlorine is.
2. a. Why does benzyl chloride react under both
SN1 and SN2 conditions?
Benzyl
chloride is a primary alkyl halide, hence reactive under SN2
conditions.
The
primary carbocation formed due to the departure of Cl- is
stabilized by the pi electrons in the benzene ring.
b. Why is...
_1. An alkyl halide which might be expected to undergo rearrangement under Snl or E1 conditions is: HZC Br CH3 A. 1 B. | F—CH,BH C. CH3-C-CH-CH, CHz CH3 D. CH3 CH3-C-CH2CH2-Br CH3 E. A Br 2. Your task is to convert 2-chloropentane into 1-pentene. Which reagents would you choose? a) NaOH/H20 b) KOH/CH3OH c) CH3ONa/CH3OH d) CH3CH2ONa/CH3CH2OH e) (CH3)3COK/(CH3)3COH 3. Circle the reaction below which is faster in polar protic solvents. OH,H,O A. CH,CH,CH,Br- CH,CH,CH,OH + Br or SH.RSH...
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