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Answers to the remaining 6 questions will be hand-drawn on paper and submitted as a single file upload below: Review of this week's reaction: H₂NCN (cyanamide) + CH3NHCH2COOH (sarcosine) + NaCl, NH4OH, H₂O ---> H₂NC(=NH)N(CH3)CH2COOH (creatine) Q7. Draw by hand the reaction of creatine synthesis listed above using line structures without showing the Cs and some of the Hs, but include the lone pairs of electrons wherever they apply. (4 pts) Q8. Considering the Zwitterion form of an amino acid, draw the Zwitterion form of Creatine. (2 pts) Q9. Explain with drawing why the C-N bond shown in creatine structure below can or cannot rotate. (3 pts) NH2(C=NH)-N(CH)CH2COOH This bond Q10. Draw two tautomers of creatine using line structures. (Note: this question is valid because problem Q9 is valid). (4 pts) Q11. Mechanism. After seeing and understanding the mechanism of creatine synthesis, students should be ready to understand the first half of one of the Grignard reactions presented in a past lab. Q11. Mechanism. After seeing and understanding the mechanism of creatine synthesis, students should be ready to understand the first half of one of the Grignard reactions presented in a past lab. The reaction RBr+Mg + CH3OCH₂CN-->> CH₂OCH₂(C=O)R consists of two steps: First step: RBr+Mg + CH3OCH₂CN+H+/H₂O (from work up) ----->> CH₂OCH₂(C=NH)R Second step: CH₂OCH₂(C=NH)R+H+/H₂O (from work up) ----->> CH3OCH₂ (C=O)R + NH3 Provide a reaction mechanism for the first step based on your understanding of the mechanism of the creatine synthesis. (4 pts) Q12. Sodium chloride dissolving in water is caused by water molecules forming strong hydrogen bonds to Na* ions and Clions. Thus, the presence of sodium chloride will cause organic molecules to have low water solubility, making the organic molecules more easily form crystals. Ammonium hydroxide is a basic compound and helps catalyze the reaction. Draw by hand how water molecules dissolve NaCl, that is, the hydrogen bonds between them. (2 pts)

Answers to the remaining 6 questions will be hand-drawn on paper and submitted as a single file upload below: Review of this week's reaction: H₂NCN (cyanamide) + CH3NHCH2COOH (sarcosine) + NaCl, NH4OH, H₂O ---> H₂NC(=NH)N(CH3)CH2COOH (creatine) Q7. Draw by hand the reaction of creatine synthesis listed above using line structures without showing the Cs and some of the Hs, but include the lone pairs of electrons wherever they apply. (4 pts) Q8. Considering the Zwitterion form of an amino acid, draw the Zwitterion form of Creatine. (2 pts) Q9. Explain with drawing why the C-N bond shown in creatine structure below can or cannot rotate. (3 pts) NH2(C=NH)-N(CH)CH2COOH This bond Q10. Draw two tautomers of creatine using line structures. (Note: this question is valid because problem Q9 is valid). (4 pts) Q11. Mechanism. After seeing and understanding the mechanism of creatine synthesis, students should be ready to understand the first half of one of the Grignard reactions presented in a past lab. Q11. Mechanism. After seeing and understanding the mechanism of creatine synthesis, students should be ready to understand the first half of one of the Grignard reactions presented in a past lab. The reaction RBr+Mg + CH3OCH₂CN-->> CH₂OCH₂(C=O)R consists of two steps: First step: RBr+Mg + CH3OCH₂CN+H+/H₂O (from work up) ----->> CH₂OCH₂(C=NH)R Second step: CH₂OCH₂(C=NH)R+H+/H₂O (from work up) ----->> CH3OCH₂ (C=O)R + NH3 Provide a reaction mechanism for the first step based on your understanding of the mechanism of the creatine synthesis. (4 pts) Q12. Sodium chloride dissolving in water is caused by water molecules forming strong hydrogen bonds to Na* ions and Clions. Thus, the presence of sodium chloride will cause organic molecules to have low water solubility, making the organic molecules more easily form crystals. Ammonium hydroxide is a basic compound and helps catalyze the reaction. Draw by hand how water molecules dissolve NaCl, that is, the hydrogen bonds between them. (2 pts)

Chemistry
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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Answers to the remaining 6 questions will be hand-drawn on paper and submitted as a single file upload below: Review of this week's reaction: H₂NCN (cyanamide) + CH3NHCH2COOH (sarcosine) + NaCl, NH4OH, H₂O ---> H₂NC(=NH)N(CH3)CH2COOH (creatine) Q7. Draw by hand the reaction of creatine synthesis listed above using line structures without showing the Cs and some of the Hs, but include the lone pairs of electrons wherever they apply. (4 pts) Q8. Considering the Zwitterion form of an amino acid, draw the Zwitterion form of Creatine. (2 pts) Q9. Explain with drawing why the C-N bond shown in creatine structure below can or cannot rotate. (3 pts) NH2(C=NH)-N(CH)CH2COOH This bond Q10. Draw two tautomers of creatine using line structures. (Note: this question is valid because problem Q9 is valid). (4 pts) Q11. Mechanism. After seeing and understanding the mechanism of creatine synthesis, students should be ready to understand the first half of one of the Grignard reactions presented in a past lab. Q11. Mechanism. After seeing and understanding the mechanism of creatine synthesis, students should be ready to understand the first half of one of the Grignard reactions presented in a past lab. The reaction RBr+Mg + CH3OCH₂CN-->> CH₂OCH₂(C=O)R consists of two steps: First step: RBr+Mg + CH3OCH₂CN+H+/H₂O (from work up) ----->> CH₂OCH₂(C=NH)R Second step: CH₂OCH₂(C=NH)R+H+/H₂O (from work up) ----->> CH3OCH₂ (C=O)R + NH3 Provide a reaction mechanism for the first step based on your understanding of the mechanism of the creatine synthesis. (4 pts) Q12. Sodium chloride dissolving in water is caused by water molecules forming strong hydrogen bonds to Na* ions and Clions. Thus, the presence of sodium chloride will cause organic molecules to have low water solubility, making the organic molecules more easily form crystals. Ammonium hydroxide is a basic compound and helps catalyze the reaction. Draw by hand how water molecules dissolve NaCl, that is, the hydrogen bonds between them. (2 pts)
Transcribed Image Text:Answers to the remaining 6 questions will be hand-drawn on paper and submitted as a single file upload below: Review of this week's reaction: H₂NCN (cyanamide) + CH3NHCH2COOH (sarcosine) + NaCl, NH4OH, H₂O ---> H₂NC(=NH)N(CH3)CH2COOH (creatine) Q7. Draw by hand the reaction of creatine synthesis listed above using line structures without showing the Cs and some of the Hs, but include the lone pairs of electrons wherever they apply. (4 pts) Q8. Considering the Zwitterion form of an amino acid, draw the Zwitterion form of Creatine. (2 pts) Q9. Explain with drawing why the C-N bond shown in creatine structure below can or cannot rotate. (3 pts) NH2(C=NH)-N(CH)CH2COOH This bond Q10. Draw two tautomers of creatine using line structures. (Note: this question is valid because problem Q9 is valid). (4 pts) Q11. Mechanism. After seeing and understanding the mechanism of creatine synthesis, students should be ready to understand the first half of one of the Grignard reactions presented in a past lab. Q11. Mechanism. After seeing and understanding the mechanism of creatine synthesis, students should be ready to understand the first half of one of the Grignard reactions presented in a past lab. The reaction RBr+Mg + CH3OCH₂CN-->> CH₂OCH₂(C=O)R consists of two steps: First step: RBr+Mg + CH3OCH₂CN+H+/H₂O (from work up) ----->> CH₂OCH₂(C=NH)R Second step: CH₂OCH₂(C=NH)R+H+/H₂O (from work up) ----->> CH3OCH₂ (C=O)R + NH3 Provide a reaction mechanism for the first step based on your understanding of the mechanism of the creatine synthesis. (4 pts) Q12. Sodium chloride dissolving in water is caused by water molecules forming strong hydrogen bonds to Na* ions and Clions. Thus, the presence of sodium chloride will cause organic molecules to have low water solubility, making the organic molecules more easily form crystals. Ammonium hydroxide is a basic compound and helps catalyze the reaction. Draw by hand how water molecules dissolve NaCl, that is, the hydrogen bonds between them. (2 pts)
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