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1. What is the concentration of the solution prepared by diluting 50 µl of ampicillin (1.0
mg/ml) to a final volume of 1ml?
2. Determine the volumes of phenol, chloroform, and isoamyl alcohol required to prepare
250 ml of a 25:24:1 (v/v) solution.
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- 1. Prepare 30 mL of a 5 mg/mL oral phenobarbital solution using phenobarbital available from the manufacturer in a 65 mg/mL solution that comes in 1-mL vials. How much stock solution will be required? 2. What mass in milligrams of potassium nitrate is present in 0.25 kg of a 500 ppm aqueous solution of KNO,?Given a BSA stock solution of 4mg/mL how would you prepare a 5 mL sample with a final concentration of 1 mg/mL?Rx Clindamycin phosphate 4% w/v Propylene glycol 12.9% w/v Purified water 11% w/v Isopropyl alcohol ad 244 mL (Sp.G. = 0.880) Ft. clindamycin gel Sig.: Place thin layer onto affected areas How many grams of isopropyl alcohol are present in a clindamycin gel that has 76 mL of purified water? Assume negligible volume shrinkage as result of mixing these ingredients. Answer: 415.2 (please show all work) ANSWER IS ALREADY GIVEN PLEASE SHOW WORK IN DETAIL HOW IT COMES
- 1. The prescription for an oral solution reads “1 tbsp ac & hs x 10d.” What is the minimum (in mL) of solution should you dispense? 2. A nursing floor requires half liter of 50% isopropyl alcohol. How many mL of 70% isopropyl alcohol will be needed for compounding this order? 3. How may grams of pure dextrose is needed to prepare 100cc of D50W?Lactic acid 10% w/v Salicylic acid 10% w/v Flexible collodion a.s. 15mL Sig: for wart removal. Use externally as directed. How many milliliters of an 85% w/w solution of lactic acid with a specific gravity of 1.21 should be used in preparing the prescription?Amoxicillin/clavulanate potassium (AUGMENTIN) powder for oral suspension is prepared prior to dispensing by adding 134 mL of purified water to the contents of the container to prepare 150 mL of suspension. If each teaspoonful of suspension contains 125 mg of amoxicillin and 31.25 mg of clavulanate potassium, how much of each of these agents is contained in the dry powder prior to reconstitution
- 1) Calculate the required gram of Tris-Hcl to prepare 1M, 100 ml Tris-HCl (Tris Stock) with mol and Molarity formula. 2)Calculate the required gram of EDTA to prepare O.5M, 100 ml EDTA (EDTA stock) mol and Molarity formula. 3.) Calculate the required volume of Tris Stock to prepare buffer A which contains 25 mM Tris-Hcl with final volume is 100 ml by using M1V1 =M2V2 formula 4) Calculate the required volume of EDTA stock to prepare buffer A which contains 10 mM EDTA with final volume is 100 ml by using M1V1 =M2V2 formula 5)Do the same for Buffer B calculationsStreptomycin sulfate 400 mg IM daily is ordered for a child weighing 77lbs. The recommended dosage is 20-40 mg/kg/day once daily. A 1 gram vial of streptomycin sulfate is available in powdered form with the following instructions: Dilution with 1.8 mL of sterile water will yield 400mg per mL. If safe, how many mLs will you give?