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- More ratios. Through the use of nuclear magnetic resonance spectroscopy, it is possible to determine the ratio between the protonated and deprotonated forms of buffers. (a) Suppose the ratio of [ A- ]A I to [HA] is determined to be 0.1 for a buffer with pKar6.0.pKa = 6.0. What is the pH? (b) For a different buffer, 91974 suppose the ratio of [ A- ]lA J to [HA] is determined to be 0.1 and the pHpH is 7.0. In this case, what is the pKapKa of the buffer? (c) For another buffer with pKa=7.5PKa = 7.5 at pH 8.0pH 8.0, what is the expected ratio of [ A- ][A ] to [HA]? doElodea cells. How can the observed differences be explained on the basis of the ether:water partition 9. Compare the penetration rates of the 3-carbon alcohols, n-propanol, propylene glycol, and glycerol, into coefficients? On the basis of molecular structure?gnment.doc?_&d x True and False Assignment.doX true or false Any condition tha x content/enforced/21069983-BL_SCI_SNC2D1-7A_993734_2122Sem3/Activity3%20Assignm BIU A - A - 2. Identify the following bonds as ionic or covalent. a) NaF b) MgCl2 c) C6H1206 d) NO2 e) CaF2 f) LiF 3. Complete the following table. Electron transfer Lewis diagram Atoms to be bonded Li & CI !!!
- Some terms will not be used. The prosthetic group of hemoglobin and myoglobin is The organic ring component of heme is Under normal conditions, the central atom of heme is In the central iron atom is displaced 0.4 Å out of the plane of the porphyrin ring system. The central atom has bonds: to nitrogen atoms in the porphyrin, one to a residue, and one to oxygen. Answer Bank Fe3+ three heme serine deoxyhemoglobin four Fe2+ oxyhemoglobin рoгphyrin histidine six cysteineHelp please. MD ordered morphine SO4 gr 2/5 and the pharmacist has a stock solution of gr 1/8 per milliliter of morphine SO4. How many milliliters of the stock solution is required to fill the Rx?Be sure to answer all parts. Tris [tris(hydroxymethyl)aminomethane] is a common buffer for studying biological systems. (K, = 5.01 x 109 and pk, 8.3) %3D %3D (a) Calculate the pH of the Tris buffer after mixing 10.5 mL of 0.20 M HCI solution with 25.0 mL of 0.10 M Tris. 7.06 (b) This buffer was used to study an enzyme-catalyzed reaction. As a result of the reaction, 0.00020 mol of H* was produced. What is the pH of the buffer at the end of the reaction? (c) What would be the final pH if no buffer were present?
- V-A. Which of the following amino acids will elute first in a cation-exchange column using a buffer at pH 7? 1. Asp or Lys 2. Arg or Met 3. Gly or Val 4. Ser or Alaglyc- 32. A lotion vehicle contains 15% (v/v) of erin. How much glycerin should be used in preparing 5 gallons of the lotion? (a) 2271 g glycerin (b) 3339.7 mL glycerin (c) 2671.8 g glycerin (d) 3548.4 g glycerin 32. (d) 3548.4 g glycerinParaphrasing Tool . medicinal meet Mniversity of Nizwa pKa of flurazepam is 8.71. Ifthe pH of the stomach is 3.5 and that of intestine is 6.0 then oral flurazepam will be t of Flurazepam Select one: a. ionized in the stomach and neutral in the intestine O b. neutral in the stomach and ionized in the intestine O c. ionized in both the stomach and the intestine O d. neutral in both the stomach and the intestine Which of the following molecules is neutral?
- Be sure to answer all parts. Calculate the equilibrium constants for decomposition of the following hydrogen halides at 298 K. Enter your answers in scientific notation. (a) 2HF(g) H2(g) + F2(g) 0.5 x 10 -97 (b) 2HCl(g) H2(g) + Cl2(g) 3.8 LOL -34 (c) 2HBr(g) H2(g) + Br2(g) 4.9 LO -20 (d) 2HI(g) H2(g) + I2(g) 1.1 -3Alligation Alternate. Show your complete solution. Note: Indicate the unit. Indicate your answer in whole numbers. 1. The solvent for the extraction of a vegetable drug is 75% alcohol. How many milliliters may 95%, 60% and 50% alcohol be mixed to prepare 75% of 4 pints of alcohol? Amount of 95% alcohol needed = ? Amount of 60% alcohol needed = ? Amount of 50% alcohol needed = ?Isotonicity. Show your complete solution. 1. A hospital pharmacist fills a medication order calling for an intravenous fluid of dextrose 5% in a 0.9% sodium chloride injection and 40 mEq of potassium chloride in a total volume of 1000 mL. The intravenous infusion is administered through an IV set that delivers 15 drops per milliliter. The infusion has been running at a rate of 12 drops per minute for 15 hours. During the 15-hour period: (a) How many mEq of KCl have been administered? (b) How many grams of KCl have been administered? (c) How many millimoles of KCl have been administered? (d) What is the total osmolarity of the intravenous fluid? Express the answer in millimoles (rounded to the nearest whole number) per 1000mL.