(a) The mean residence time of any single component i is given by (1-8)(1+K₁) "₁ UE where u is fluid velocity and L the column length. (b) The required maximum column length L is the maximum value of T d(K₁ - K₁) (1 + K, )²(I + K₁) where K, > K,
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Biochemical Engineering - Bailey and Ollis
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- For the serial dilution, your stock solution must have a concentration of 3.5 mg/mL. How much diluent must be added to the 5.3 mg/mL red cell to prepare the stock solution? Show pertinent solution/s. 7. If the red cell suspension is the stock solution, what is being quantified in this test? What diluent/reactant should be used to detect your answer in number 7?If the osmotic pressure of a 7.96×10-2-M aqueous solution of Fe2(SO4)3 was found to be 8.71 atm at 20°C, what would be the "observed" van't Hoff factor? Use the above van't Hoff factor to predict the freezing point of this solution.Note that the corresponding molality would be 8.25×10-2 m, given that the density of the solution is 0.997 g/cm3. °C Use the above van't Hoff factor to predict by how many degrees the boiling point of this solution will be elevated above that for pure water.The isoelectric point of eIF4a is 5.02. Students are given a sample of cell lysate containing eIF4A at pH 7.4. They are also provided with two buffers of pH 7.4 to use for ion exchange chromatography. One buffer has a very high salt concentration (1 M), the other has a low salt concentration (0.1 M). Mariela decides to use an anion exchange column, while Ashok chooses a cation exchange column. Who made the better decision? Provide a detailed explanation of why one student will end up with a purer sample of eIF4A. Which buffer will you use while washing away impurities (high or low salt), and which would you use to remove eIF4A from the column? Explain your choice.
- A 2.5mg/ml solution of ampicillin is available for use, what volume would youadd to 200ml of LB medium to obtain a final concentration of 50µg/ml ofampicillin?Table 2. Volume of BSA, protein content, and absorbance readings of reference solutions Solution Volume of BSA standard solution (μL) Protein content(μg/mL) Absorbance value At 595 nm 1 0 0 0 2 10 1 0.022 3 30 3 0.065 4 50 5 0.106 5 70 7 0.178 6 100 10 0.299 7 120 12 0.380 Make a graph by plotting the absorbance values versus the BSA protein content (in μg) for theseven reference solutions. When constructing the graph, be…0.0 M sucrose = _______ 0.008_____________ g/min 0.4 M sucrose = _______ -0.013_____________ g/min 0.6 M sucrose = ________ -0.023g____________ g/min 0.8 M sucrose = ________-0.026____________ g/min 1.0 M sucrose = ________ -0.033____________ g/min Can i please have the step by step calculations Using the osmosis data in the question above, determine the percent weight change for each sucrose solution . Write your answer in standard notation and use 1 digit past the decimal point - e.g. 8.6. (Note that the last zero in the answer is considered to be a digit) 0.0 M sucrose = _________ ___________% 0.4 M sucrose = _______ ______________% 0.6 M sucrose = _____________________% 0.8 M sucrose = __________________% 1.0 M sucrose = ____________________%
- Plot a line weaver-burk graph for Km=6.30mM and Vmax=360uM/min when an experiment has 5 tubes with concentrations of substrates of 1.0mM, 10mM, 50mM, and 100mM.The material to be heated is in a long, cylindrical tube, and is viscous enough that any flow inside the tube can be ignored, i.e. the heating is by conduction alone). Also, consider the glass of the tube to be very thin so its thermal resistance can be ignored. The tube diameter is 1 cm and the properties of the material are the same those of water, given by 0.64 W/m*K, 1000 kg/m3, and 4180 J/kg*K, for thermal conductivity, density, and specific heat, respectively. The water bath temperature is 65 °C, and the initial temperature of the material is 27 °C. Without the agitation of the water bath, the heat transfer coefficient can be considered to be 128 W/m2*K. Considering the tube to be a long cylinder, how long does it take for the coldest point to heat up to a temperature corresponding to 99% of the total possible temperature increase? If the surrounding how water is agitated using a stirrer, leading to a considerably large surface heat transfer coefficient, how long does it…Describe the effects of a lethal dose of ionizingradiation at the molecular level. What type of filterwould be used to filter sterilize a heat-sensitive liquid?
- True or False. If drug A produces a larger zone of inhibition than drug B on the Kirby-Bauer disk diffusion test, drug A should always be prescribed. Explain your answer.what is the property of the solution that makes log(concentration) Vs electrochemical potential deviates from linear line at high concentrations?The pH probe/meter uses following equations: Ecell = L + 0.0592 log a1 = L - 0.0592 pH Where L = L1 + EAg/AgCI + Easy= constants L1 = - 0.0592 log a2 a1 = activity of analyte solution a2 = activity of internal solution How will measured pH value be affected vs “real” pH if HCl in pH electrode, became 0.15M instead of 0.1M ? a.impact can not be determined b.measured pH is higher than "real" pH. c.measured pH is lower than "real" pH. d.measured pH is same as "real" pH.
