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In uv visible spectroscopy , we measure the absorption of radiation by the sample at a particular wavelength. The wavelength at ehich maximum absorption takes place is called lamda max
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- 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%Guanosine (C10H13N5O5) in solution has a maximum absorbance at a wavelength of 275 nm. The molar extinction co-efficient at this wavelength is 84M−1cm−1and the path length is 24.7 cm. Through the use of a spectrophotometer, it is found that the that A275= 1.48. What is the concentration of the guanosine solution in grams/litre? Molecular weights (g/mol): C-12, H-1, N-14, O-16 Select one: A. 0.201869 g/L B. 0.435188 g/L C. 0.059919 g/L D. 0.294046 g/L E. 0.000713 g/LHow many moles are needed to prepare 95ml of 18%(mVmV) HCl ? molar mass HCl =36.45g/mol steps please
- 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?Drug X is intended to be formulated as tablets of 250 and 500 mg doses. The lowest value of aqueous solubility of the drug is 25 mg % over the pH range 1-8 and the permeability is 75%. According to BCS, this drug is classified as: * 8X2.36.1
- The following is HPLC data. Using the standard curve determine the concentration of caffeine in each sample in µg/µl: Sample Peak area Volume of sample Amount of caffeine µg/ µl 1 1305490 1 µl 2 7836463.3 1 µl 3 3476413.7 1 µl 4 2936950.7 1 µl 5 15452894 1 µl 6 958353.7 1 µl 7 592743.3 1 µl 8 557099 1 µl 9 653410.7 1 µl 10 734443.7 1 µlSolution Absorbance mg/ml aspirin Standard solution - 1.6 mg/mL A 0.638 0.08 mg/mL B 0.504 0.064 mg/mL C 0.376 0.048 mg/mL D 0.259 0.032 mg/mL E 0.126 0.016 mg/mL A = -log T where T = %T ÷ 100 Construct a callibration curve using the above data. Absorbance should be on the vertical axis and "mg/mL of acetylsalicylic acid" on the horizontal axis. The line should go through the origin. Using the data provided, the graph you have generated, and the procedure that was used to generate the solutions which were examined by spectroscopy, calculate the amount of acetylsalicylic acid per tablet. Commercial tablet 1 labelled as 100 mg enteric coated Absorbance = 0.16 Commercial tablet 2 labelled as 300 mg Absorbance = 0.45 Student prepared tablet from practical 5 Absorbance = 0.19 Using the data provided, the graph you have generated, and the procedure that was used…The drug dosage for the patient is calculated using a BSA of 1.9m2. If the order is 15mg per m2, how many milligrams is the desired dose?
- How much active ingredient in 20 cc of a 15% solution? You have 1:1000 concentration of epinephrine. How many mLs do you need to draw up if you want to give 45 mg of the drug? (I need help please :)Furosemide is packaged as 10 mg/mL. A pharmacy technician must make a preparation totaling 25 mL of 2 mg/mL concentration. How much drug and how much diluent are used? (Textbook says use %w/v to calculate and the answer key says 5 mL concentrate; 20 mL diluent. I'm looking for how to set up and solve this problem.)Phenylephrine and nafazolin solutions are used as decongestants to relieve nasal congestion. Your patient has been given the following prescription below. You need to prepare 100 g of this nasal spray and make it isotonic. 1. There is an available 25% w/w Phenylephrine solution in the pharmacy. How many g of this solution will you need to supply the needed 0.5% of the patient? A. 1.0 g В. 1.5 g С. 2.0 g D. 4.0 g 2. Given the amount calculated on the previous item, and if the E value of phenylephrine HCl is 0.32, calculate its corresponding sodium chloride tonicic equivalent. А. 0.16 B. 0.64 С. 1.60 D. 6.40 3. If the E value of nafazolin is 0.27, what is the sodium chloride tonicic equivalent of the patient's needed nafazolin? A. 0.0135 B. 0.1350 1.3500 D. 13.500 4. What is the combined sodium chloride tonicic equivalent of the remaining ingredients (edetate disodium (E =0.24) and sodium metabisulfite (E = 0.7)? A. 1.060 B. 0.106 С. 1.290 D. 0.129 5. To make the solution isotonic, what…