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- Give and explain 2 application of each in nature and the human body 1. Cohesion , 2. Adhension, 3. Surface, 4. Water as a solvent Thank you“The processes of life require a wide variety of ions and molecules tobe close to each other and be soluble in a common medium”. discuss the importance and application ofthis statement in linking the unique properties of water (as universalintracellular and extracellular medium) to the dissolution and absorption ofdrugs in the body.Part of the uniqueness of water as a solvent include except
- Part I. For each of the following four questions: calculate and describe how the requested solution would be made. Please show all of your calculations. In all cases the diluent or solvent will be water. Also, assume the smallest volume you can accurately pipette is 1ul. (CaClh: Molecular weight = 111.0 - NaCl: Molecular weight= 58.44) 1. From a 3M CaCh stock solution, you need to make 600 ml of 9 mM CaClh. Indicate how you would make it. 2. You have a 20ul sample of DNA that you want to run in a gel. You are given 5X track dye; how much track dye do you add to your sample so that the track dye concentration in the sample is 1X? 3. You need to make 6 liters of 20% NaCl solution. Indicate how you wvould make it firom powdered NACI.4. Attheendoftheprocedureforthisexperiment,arecrystallizationisdoneina mixed solvent system. Which solvents are used? In which solvent is caffeine LESS SOLUBLE? Briefly explain the significance (i.e. why it is done) of adding one of the two solvents, “to turn the solution faintly cloudy,” during the recrystallizationConvarts n-paraffins 1- 15 to iso-parafins Isomerization. © a none of these. Alkylation a polymerization 2- In the atmospheric pressure crude distillation, from lighter fraction to heavier ones. the Contentof @ Sulphur increases (b) Sulfur decreases ©nitrogen increases nitrogen decreases of the se a none
- Table 4- Determination of the optimum pH of catechol oxidase enzyme Potato extract (mL) Tube # 2d 3d 4d 5d 6d 7d dH₂O (mL) 0 0 0 0 0 0 Catechol (mL) 6 6 6 6 6 6 pH buffer added 4mL pH 2 4mL pH 4 4mL pH 6 4mL pH 7 4mL pH 8 4mL pH 10 1 1 1 1 1 1 Absorbance (0 mins) A: 0.010 Start Time: 3:24 A: 0.008 Start Time: 3:34 A: 0.023 Start Time: 3:36 A: -0.006 Start Time: 3:36 0.018 A: Start Time: 3:36 A: 0.011 Start Time: 3:36 Absorbance (after 10 mins in 40°C water bath) -0.030 A: Take reading at: 3:44 A: 0.154 Take reading at: 3:46 A: 0-105 Take reading at: 3:46 A: 0-132 Take reading at: 3:46 A: 0.074 Take reading at: 3:46 A: 0.018 Take reading at: 3!46 Q15) What is the enzyme's optimum pH(s)? Answer: Q16) Use the difference between 2nd and 1st absorbance to support your conclusion for the optimum pH. Subtract Omin from 10min absorbance -0.04 0.0012 0.082 0.138 0.056 0.007Which of the following is MOST soluble in polar solvents? A H₂C ОН В с D ОВ O О О O A H3C. HO HC CH3 CH3 ОН COOH CH3 CH3 CH3Histopathology- Tissue processing STAINING OF SECTION (H and E STAINING) State the purpose of the following in staining: A. XYLENE 1 AND 2 B. Alcohol Absolute to 50 % Alcohol C. Hematoxylin D. Acid Alcohol - E. Ammonia Water F. Alcohol from 50 % to Absolute alcohol G. Last 3 Xylene
- hich of the following is not a unique property of water? provide as means of lubrication have a high heat capacity act as a universal solvent due to it being a polar molecule form covalent bonds with other water molecules2. Absorbance Data Table Absorbance Concentration 0 mg/dL = blank %3D 0.09 Oi17 0.28 25 mg/dL 50 mg/dL 75 mg/dL 100 mg/dL 035 Unknown solution 6.14 3. Attach a graph of your standard curve. Show the point for the unknown solution on your graph, and determine the concentration of the unknown. Enter this value below (include correct units). Concentration of the unknown solutionyour work for ful 3. (1 point) Show the answer to the following question in correct significant figures. 10.219 + 3.12 = 4. (7 pts) True or False. Circle the correct answer. True or False. A blank used to zero of spectrophotometer always contains just distille-