A 100 mL solution of 0.1 M amino acid (AA) at pH 1.0 was titrated with 1.0 M NaOH solution. The pH was monitored, and the results were plotted on a graph, as shown below. The key points in the titration are I to VII. designated 12 10 -9.7 817 pH 6 4 2 3.9. 2.0 0 1 0.5 1 IV V VI 1.5 2 2.5 Equivalents of OH 3 VII
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- You have just used up the last of a 1.2 % m/m solution of agarose in water. You require another 100mls. How many grams of Agarose do you require? Note 1ml of water=1g What is the % w/v of a 100ml solution containing 5g of NaCl?A 5% dextrose in 1/2 normal saline (D5 1/2 NS) solution is commonly administered to patients needing post-operative IV fluids. How could you prepare 500 mL of this solution? Dextrose is 5% (m/v) and the NaCl is 0.45% (m/v).You are given two proteins with a pI of 4.5 and pI of 7.7. In an example of an anion-exchange column, can you use a buffer to separate these two proteins? What buffer protein can be used to separate the two proteins mentioned above?
- Tirofiban (C22H36N₂O5S MWt = 440.6) is present as tirofiban HCI monohydrate (C22H36N2O5S.HCI.H₂O MWt=495.1) at 0.281 mg/mL in a concentrated solution. A solution for infusion is prepared by extracting 50 mL from a 250 mL bag of 5% glucose solution and adding 50 mL of concentrated solution. Sofia who weighs weighs 87 kg requires a tirofiban dose of 0.1 mcg/kg/min for 12 to 24 hours. What would the infusion rate be (mL/h)? (Answer to 1 decimal place.) Answer:Given an 8 M potassium chloride stock solution, explain whether it is possible to perform a dilution resulting in an 11 M working solution.How many moles of EDTA (C10H16N2O3) do you have in 785µl of a 74MM EDTA solution (Mr(C10H16N203) = 292.24)? Consider all digits of your Givens significant. Round results to the appropriate number of Significant Digits. The number of moles is mmol.
- You want to prepare a 15 mL gel containing 0.8% (weight /volume) agarose. How much agarosedo you need to weigh to prepare the solution? Show all your calculations.Hint: Write down the units for 0.8% knowing that agarose is a powder that is mixed with aliquidConsider the titration of 30.0 mL of 0.0700 M HONH2 (a weak base; Kb = 1.10e-08) with 0.100 M HI. Calculate the pH after the following volumes of titrant have been added: (a) 0.0 mLpH = (b) 5.3 mLpH = (c) 10.5 mLpH = (d) 15.8 mLpH = (e) 21.0 mLpH = (f) 27.3 mLpH =You just made a 1.5M permanganate solution. What concentration is your potassium permanganate solution in percent? "K: 39.10 g/mole" "Mn: 54.94 g/mole" "O: 16 g/mole" "MW of KMnO4 is 158.04 g/mole" O a. 0.24% Ob. 20.1% O c. 15.8% O d. 23.7% O e. 2%
- The prescriber ordered oxacillin 500mg IM q6h. The instructions on the 2g vial state to reconstitute the powder with "11.5mL of sterile water for injection, yielding 250mg/1.5mL" Whatis the strength of the reconstituted solution? How many milliliters would you administer?In a neutral solution, the [H*] is : * 1.0x10-14M zero 1.0×107M O 1.0x10-7MLaemmli buffer, also referred to as SDS-reducing buffer, is added to each of the samples. It is a blue solution and the recipe for 2X Laemmli buffer is: 0.125 M Tris HCl, pH 6.8, 20% glycerol, 4% SDS and 10% β-mercaptoethanol (βME). What is the purpose of each of these ingredients?