7.16 Calculate the molar mass for each of the following: a. FeSO4, iron supplement b. Al2O3, absorbent and abrasive c. C7H5NO3S, saccharin, artificial sweetener
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Calculate the molar mass for each of the following
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- 9. 1.4 g of glucose (C6H1206) is dissolved in 150 ml of water (final volume). What is the final number of moles and the molarity of the solution?8.52 Will a red blood cell undergo crenation, lysis, or no change in each of the following solutions? a. 10% (m/v) NaCl b. distilled water c. 5% (m/v) NaCl d. 5% (m/v) glucose e famsTrans-oleic acid (18:1,D9) has a melting temperature of (44.5C) and cis-oleic acid (18:1,D9) has a melting point of (13.4C). Briefly explain the difference in melting points between the two.
- 3.1 Illustrate the relationship between the following: Vitamin E, Vitamin C, Glutathione, alpha-lipoic acid, and Niacin.Determine the weight/volume of the chemicals needed to prepare the following solutions: a) 100 ml of 0.9% (w/v) saline (NaCl) b) 30 ml of 50% glycerol (v/v) c) Electrophoresis requires TAE, which is a specific mixture of Tris base, acetic acid, and EDTA. TAE is normally made as a 50X concentrated stock. Provide a recipe to make 40 ml of 50X TAE. The recipe for one liter of 50X TAE is as follows: 242g Tris base, 57.1 ml glacial acetic acid, 100 ml 0.5 M EDTAA 5 ml vial of hydrocortisone is having 2% (w/v) concentration. How many vials will be required, if we need to prepare 30 ml of a 8 mg/ml oral hydrocortisone?
- Creatinine, C4H7N3O, is a by-product of muscle metabolism, and creatinine levels in the body are known to be a fairly reliable indicator of kidney function. The normal level of creatinine in the blood for adults is approximately 1.0 mg per deciliter (dL) of blood. If the density of blood is 1.025 g/mL, calculate the molarity of a normal creatinine level in a 10.0 mL blood sample.Casein, a protein in milk, has a molecular formula C38H57O9N9. Determine the total BOD, carbonaceous BOD, and nitrogenous BOD of casein in units of “grams BOD per gram of casein”Propanamide and methyl acetate have about the same molar mass, both are quite soluble in water, and yet the boiling point of propanamide is 486 K, whereas that of methyl acetate is 330 K. Explain.
- The concentration of cholesterol (C27H46O) in blood is approximately 5.0 mM. How many grams of cholesterol are in 250 mL of blood?A mixture of Alanine (pl 6.02), Glutamic Acid (pl 3.22), Glycine (pl 5.79), Lysine (pl 9.74) and Threonine (pl 6.53) are separated by cation exchange chromatography. What is the order of elution of these amino acids if you use gradient buffer system from pH 10 to pH 2 ? v First 1. Alanine v Second 2. Glutamic Acid v Third 3. Glycine v Fourth 4. Lysine v Fifth 5. Threonine 6. No separationConsider the following pH titration curve of a diprotic acid. What is the approximate values for pka 1 and pka 2? the curve is attached below.