The following data were obtained in the experiment for Carbonyl Compounds. Using the data below identify compounds A, B, C, and D and justify your answer. Tollen's Solubility in | Solubility in H20 lodoform 2,4-DNP Test Jones' Test NaOH Test Test Visible+Results Samples A ++ ++ ++ ++ В ++ ++ C ++ ++ ++ ++ ++ ++ ++ Sample Identity Rationalization A C
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- On the following page are three compounds, 1, 2, and 3, that have been investigated as anti-malarial candidates. Compound 1 is the "parent" molecule, and 2 and 3 are derivatives. Shown next to each molecule is (i) the enthalpy change when it binds to its target, and (ii) the dissociation constant for the molecule/target complex. Consider the structures and answer the following: AH = - 1.2 kcal/mol; Kp = 16 nM OH 1 HO AH = - 6.0 kcal/mol; Kp = 76 nM OH AH = - 5.5 kcal/mol; Kp = 0.5 nM OH 3 (i) What is the difference among 1, 2, and 3?4 (Chemical Connections 19F) Why do Lactomer stitches dissolve within 2 to 3 weeks following surgery?h) a OE 1) "Buli/THF/t/1.5h 2) -SCH CH₂ /d/1h TICU CH₂C-780/15 min PPhy/1₂11 imidazole/THF o'℃-n acer
- A purified protein is in a HEPES (N-(2-hydroxyethyl)piperazine-N-(2-ethanesulfonic acid)) buffer at pH 7 with 600 mM NaCl. A 1 mL sample of the protein solution is placed in a tube made of dialysis membrane and dialyzed against 2.0 L of the same HEPES buffer with 0 mM NaCl. Small molecules and ions, such as Na, Cl, and HEPES, can diffuse across the dialysis membrane, but the protein cannot. Once the dialysis has come to equilibrium, what is the concentration of NaCl in the protein sample? Assume no volume changes occur in the sample during the dialysis. [NaCI] = mM If the original 1 mL sample were dialyzed twice, successively, against 200 mL of the same HEPES buffer with 0 mM NaCl, what would be the final NaCl concentration in the sample? [NACI] = mMWhat generalization trends may be extracted from the following series in terms of solubility with (a) NaOH, (b) NaHCO3 (c) HCl and (d) H2SO4. Set A Benzoic Acid, Isopropanol, Ethyl acetate, Acetophenone, n-hexane Set B Acetic anhydride, 2S-Butanol, Cyclohexene, Ethylamine, AcetanilideSelective serotonin reuptake inhibitors (SSRIs) are commonly prescribed antidepressants. SSRIs block the reabsorption of the neurotransmitter serotonin in the brain. Changing the balance of serotonin helps brain cells send and receive chemical messages, which in turn boosts mood. Two SSRI medications are Faverin (fluvoxamine, C15H21F3N2O2 ) and Zoloft (sertraline, C17H17Cl2N ). Determine the molar masses of Faverin and Zoloft
- fetal and Studies of oxygen transport in pregnant mammals show that the O2-saturation curves maternal blood are markedly different when measured under the same conditions. Fetal erythrocytes contain a structural variant of hemoglobin, HbF, consisting of two a and two y (a2 y2), whereas maternal erythrocytes contains HbA (a2 B2). 1. 1.0 HbF +BPG 0.5 E HbA +BPG 2 4 8 10 pO2 (kPa) a. Which hemoglobin has a higher affinity for oxygen under physiological conditions, HbA or HbF? Explain. b. What is the physiological significance of the different O2 affinities?6) What is the nucleophilic site in the following compounds? H3C-0-CH3 H2C=CH2 CH;NH2 II II A) | = Hydrogen; I| = TT electrons in bond; III = nitrogen. %3D B) | = Oxygen; II = carbon; III = nitrogen. C) Hydrogen; II = carbon; III = carbon. %3D D) | = Oxygen; II = TT electrons in bond; III = nitrogen.5. The safonification of ethyl acetate in sodium hydroxide solution at 30^oC СНЗСООС2H5 + NaOH СНЗСОONa + С2H5ОН was studied by Smith and Lorenson (J. Am Chem. Soc.,61 (1939), 117). The initial concentration of ester alkali were both 0.05 mol.dm^-3, and the decrease in ester concentration x was measured at the following times. x 10^-3/mol dm^-3 5.91 11.42 16.30 22.07 27.17 31.47 36.44 Time/ min 4 15 24 37 53 83 Calculate the rate constant for the reaction. (Avery, 18)
- A 35 year old male was taken to the hospital with excruciating pain in the lower abdominal area. It was discovered that this patient drank no more than half a glass of water each day over the past week, while drinking at least three cups of black tea on the same days. Additionally, the patient regularly eats very large quantities of spinach. Upon further analysis, it was determined that the presence of Calcium Iodideand Sodium Oxalate may have led to the pain that the patient was experiencing. Determine whether or not kidney stones could be the probable cause of the lower abdominal pain for this patient by answering the following questions (Be sure to show your work for all parts): Assume that Calcium Iodideand Sodium Oxalate are the starting substances (reactants) in the reaction: a. Write a balanced chemical equation describing the formation of kidney stones, using the information in the case study. b. State the names of the products that are produced from this reaction. c.…A 35 year old male was taken to the hospital with excruciating pain in the lower abdominal area. It was discovered that this patient drank no more than half a glass of water each day over the past week, while drinking at least three cups of black tea on the same days. Additionally, the patient regularly eats very large quantities of spinach. Upon further analysis, it was determined that the presence of Calcium Iodideand Sodium Oxalate may have led to the pain that the patient was experiencing. Determine whether or not kidney stones could be the probable cause of the lower abdominal pain for this patient by answering the following questions (Be sure to show your work for all parts): Assume that Calcium Iodideand Sodium Oxalate are the starting substances (reactants) in the reaction: a. Write a balanced chemical equation describing the formation of kidney stones, using the information in the case study. b. State the names of the products that are produced from this reaction. c.…A 35 year old male was taken to the hospital with excruciating pain in the lower abdominal area. It was discovered that this patient drank no more than half a glass of water each day over the past week, while drinking at least three cups of black tea on the same days. Additionally, the patient regularly eats very large quantities of spinach. Upon further analysis, it was determined that the presence of Calcium Iodideand Sodium Oxalate may have led to the pain that the patient was experiencing. Determine whether or not kidney stones could be the probable cause of the lower abdominal pain for this patient by answering the following questions (Be sure to show your work for all parts): Assume that Calcium Iodideand Sodium Oxalate are the starting substances (reactants) in the reaction: a. Write a balanced chemical equation describing the formation of kidney stones, using the information in the case study. b. State the names of the products that are produced from this reaction. c.…