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Given the transition state below and K1, select the letter (W - Z) that corresponds to:...
2. (a) (i) Draw an arrow-pushing mechanism that illustrates the electron flow in the acid-base reaction...
2. (a) (i) Draw an arrow-pushing mechanism that illustrates the electron flow in the acid-base reaction below. Use the structures shown below in your arrow-pushing mechanism. (4pts for correct mechanism). (ii) Using pKa values indicated in Table 1.8 (round to nearest whole number) and estimate the equilibrium constant for this reaction (Keq). Show work which led to this value. (3pts for work, 1pt for correct Keq indicated). (iii) Draw a base (assuming the same acid provided below) that would reverse...
biochemistry if you could please help me answer the following questions! 741) (5 pts) Transition state theory relate...
biochemistry
if you could please help me answer the following questions!
741) (5 pts) Transition state theory relates the rate constant to the free energy of activation, AG. How can enzymes reduce the activation energy barrier? a) decrease the free energy of the product b) high affinity binding to the transition state c) increase the free energy of the substrate d) increase entropy upon release of product e) bind to the substrate with high affinity 2) (5 pts) Which is...
3. For each reagent Q, R, W, X, Y, and Z in the list below, provide...
3. For each reagent Q, R, W, X, Y, and Z in the list below, provide one correct function and the two correct reasons for your choice. .. Na O: S: Na Ho KI Na : Q RW > The options are: FUNCTIONS 1 - strong nucleophile + strong base; (choose one) 2 - strong nucleophile + weak base; 3 - weak nucleophile + strong base; 4 - weak nucleophile + weak base REASONS (choose two) A - conjugate acid...
1) State which of the electrophiles given below will react preferentially by i) SN1, ii) by...
1) State which of the electrophiles given below will react
preferentially by i) SN1, ii) by SN2, or iii) capable of reacting
by either of the two mechanisms depending on the given conditions.
How can you affect those conditions to favour SN1 or SN2? Reason
your predictions based on the structures of the compounds. Br-CH3,
Br-CH2CH3, Br-CH(CH3)2, Br-C(CH3)3, Br-CH2-C5H6; C5H6 = phenyl
Introduction Alkyl halides can be prepared from alcohols by reactions with hydrogen halides (HCI, HBr, or HI) via...
(91 fatty Acid Metabolism. The reactions of the fatty acid spiral are shown below. Use the...
(91 fatty Acid Metabolism. The reactions of the fatty acid spiral are shown below. Use the description on the left side of the page to classify the reactions and fil in the boxes on the right side of the page Aetivation Step. The activation of the fatty acid begins by the addition of CoA which will carry the fatty acid from the cytosol into the mitochondria. The product, which is a fatty acid with a CoA attached, is known as...
A chemistry teacher needs to make 2.30 L of a potassium chloride solution for an experimen...
A chemistry teacher needs to make 2.30 L of a potassium chloride solution for an experimen The concentration of the required solution is 3.10 M. How many grams of KCI will she need to use? 0 7.13 g KCI 0 231 g KCI O 532 g KCI 0.0956 g KCI What is the equation for the ion product constant of water at 25 °C? Kw [H,0+][OH-] [H,O] = 1.00 x 10-14 Kw [H,0+1 [OH-] = 1.00 x 10-14 Kw =...
Fatty Acid Metabolism. The reactions of the fatty acid spiral are shown below. Use the description...
Fatty Acid Metabolism. The reactions of the fatty acid spiral are shown below. Use the description on the left side of the page to classify the reactions and fill in the boxes on the right side of the page Activation Step. The activation of the fatty acid begins by the addition of CoA which will carry the fatty acid from the cytosol into the mitochondria. The product, which is a fatty acid with a CoA attached, is known as a...
Biochemistry. Please answer all completely. 13. Identify the electrophilic center and nucleophile in the below image...
Biochemistry. Please answer all completely.
13. Identify the electrophilic center and nucleophile in the below image : R 14. Give an example of amino acids with R group shown below which can function as nucleophile during enzyme catalysis. Nucleophiles Negatively charged oxygen (as in an unprotonated hydroxyl group or an ionized carboxylic acid) Negatively charged sulfhydryl Uncharged amine group HN Imidazole 15. Identify the amino acids with the following side chains and also define if they will work as acid...
Synthesis of 1-Bromobutane: An SN2 Reaction Pre-Laboratory Exercises PRE-LABORATORY EXERCISES NAME: Cynthesis of 1-Bromobutane: An SN...
Synthesis of 1-Bromobutane: An SN2 Reaction Pre-Laboratory
Exercises
PRE-LABORATORY EXERCISES NAME: Cynthesis of 1-Bromobutane: An SN 2 Reaction Butylbromide was prepared by refluxing in a 100-ml round bottomed flask a solution containing 13:35 Br 15 ml of water, 10 mL of n-butyl alcohol. 15 ml of concentrated H.SO. and a few boiling stories, 1. 2. R." d 1.275 laborales Nel CH3CH2CH2CH2OH + NaBr H2SO4 Superletalyst CHCH2CH2CHBr + NaHSO + HO (eq. 16) 1-butanol bp 118 C 1-bromobutane d 0.810 bp...
3.2 Periodic trends 1. (0620-5 2012-Paper 1/2-Q21) Which properties of the element titanium, Ti, can be...
3.2 Periodic trends 1. (0620-5 2012-Paper 1/2-Q21) Which properties of the element titanium, Ti, can be predicted from its position in the Periodic Table? forms coloured compounds conducts electricity when solid can be used has low density as a catalyst X A X X Xx 2. (0620-W 2012-Paper 1/1-Q20) The diagram shows an outline of the Periodic Table. U V W X Y Which of the elements U, V, W, X and Y would react together in the ratio of...
2. (a) (i) Draw an arrow-pushing mechanism that illustrates the electron flow in the acid-base reaction below. Use the structures shown below in your arrow-pushing mechanism. (4pts for correct mechanism). (ii) Using pKa values indicated in Table 1.8 (round to nearest whole number) and estimate the equilibrium constant for this reaction (Keq). Show work which led to this value. (3pts for work, 1pt for correct Keq indicated). (iii) Draw a base (assuming the same acid provided below) that would reverse...
biochemistry
if you could please help me answer the following questions!
741) (5 pts) Transition state theory relates the rate constant to the free energy of activation, AG. How can enzymes reduce the activation energy barrier? a) decrease the free energy of the product b) high affinity binding to the transition state c) increase the free energy of the substrate d) increase entropy upon release of product e) bind to the substrate with high affinity 2) (5 pts) Which is...
3. For each reagent Q, R, W, X, Y, and Z in the list below, provide one correct function and the two correct reasons for your choice. .. Na O: S: Na Ho KI Na : Q RW > The options are: FUNCTIONS 1 - strong nucleophile + strong base; (choose one) 2 - strong nucleophile + weak base; 3 - weak nucleophile + strong base; 4 - weak nucleophile + weak base REASONS (choose two) A - conjugate acid...
1) State which of the electrophiles given below will react
preferentially by i) SN1, ii) by SN2, or iii) capable of reacting
by either of the two mechanisms depending on the given conditions.
How can you affect those conditions to favour SN1 or SN2? Reason
your predictions based on the structures of the compounds. Br-CH3,
Br-CH2CH3, Br-CH(CH3)2, Br-C(CH3)3, Br-CH2-C5H6; C5H6 = phenyl
Introduction Alkyl halides can be prepared from alcohols by reactions with hydrogen halides (HCI, HBr, or HI) via...
(91 fatty Acid Metabolism. The reactions of the fatty acid spiral are shown below. Use the description on the left side of the page to classify the reactions and fil in the boxes on the right side of the page Aetivation Step. The activation of the fatty acid begins by the addition of CoA which will carry the fatty acid from the cytosol into the mitochondria. The product, which is a fatty acid with a CoA attached, is known as...
A chemistry teacher needs to make 2.30 L of a potassium chloride solution for an experimen The concentration of the required solution is 3.10 M. How many grams of KCI will she need to use? 0 7.13 g KCI 0 231 g KCI O 532 g KCI 0.0956 g KCI What is the equation for the ion product constant of water at 25 °C? Kw [H,0+][OH-] [H,O] = 1.00 x 10-14 Kw [H,0+1 [OH-] = 1.00 x 10-14 Kw =...
Fatty Acid Metabolism. The reactions of the fatty acid spiral are shown below. Use the description on the left side of the page to classify the reactions and fill in the boxes on the right side of the page Activation Step. The activation of the fatty acid begins by the addition of CoA which will carry the fatty acid from the cytosol into the mitochondria. The product, which is a fatty acid with a CoA attached, is known as a...
Biochemistry. Please answer all completely.
13. Identify the electrophilic center and nucleophile in the below image : R 14. Give an example of amino acids with R group shown below which can function as nucleophile during enzyme catalysis. Nucleophiles Negatively charged oxygen (as in an unprotonated hydroxyl group or an ionized carboxylic acid) Negatively charged sulfhydryl Uncharged amine group HN Imidazole 15. Identify the amino acids with the following side chains and also define if they will work as acid...
Synthesis of 1-Bromobutane: An SN2 Reaction Pre-Laboratory
Exercises
PRE-LABORATORY EXERCISES NAME: Cynthesis of 1-Bromobutane: An SN 2 Reaction Butylbromide was prepared by refluxing in a 100-ml round bottomed flask a solution containing 13:35 Br 15 ml of water, 10 mL of n-butyl alcohol. 15 ml of concentrated H.SO. and a few boiling stories, 1. 2. R." d 1.275 laborales Nel CH3CH2CH2CH2OH + NaBr H2SO4 Superletalyst CHCH2CH2CHBr + NaHSO + HO (eq. 16) 1-butanol bp 118 C 1-bromobutane d 0.810 bp...
3.2 Periodic trends 1. (0620-5 2012-Paper 1/2-Q21) Which properties of the element titanium, Ti, can be predicted from its position in the Periodic Table? forms coloured compounds conducts electricity when solid can be used has low density as a catalyst X A X X Xx 2. (0620-W 2012-Paper 1/1-Q20) The diagram shows an outline of the Periodic Table. U V W X Y Which of the elements U, V, W, X and Y would react together in the ratio of...
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