If you are in the lab and report "Susie's Tylenol level of 300 \mu g/mL, How many ng/mL is this? Discuss the significance of this value. What if she had a previous value that was higher than this-what is the relationship?
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- Your supervisor asks to make 300 mL of a 1.0% (w/v) starch solution using a 5% (w/v) stock solution. You have calcuated how much stock solution you need. But, how much water (in mL) will you need to add to the stock to achieve the correct final concentration?How much of the preservative is needed to prepare a 120-mL preparation of Aluminum hydroxide gel based on this formulation? Ammonium alum 800 g Sodium carbonate 1000g Peppermint Oil 0.01% (0.01 g/100mL) Sodium benzoate 0.1% (0.1 g/100mL) Purified water, qs ad.2000 mL a. 0.12 g b. 60 g c. 48 g d. 0.012 gFor part B, it is not 4.98 x 10-41. I put it in and it was wrong. It is looking for P1.
- The alcohol content of hard liquor is normally given in terms of the “proof,” which is defined as twice the percentage by volume of ethanol (C2H5OH) present. Calculate the number of grams of ethyl alcohol present in 700.0 mL of 80-proof Tequila. The density of ethanol is 0.798 g/mL. Answer in GRESA format.You are given a 1:1 (by weight) solid mixture of vitamin C and vitamin A, and you are going to use liquid-liquid extraction to separate one from the other (chemical structures are given below). If you decide to use water (density, 1 g/mL) and ethanol (density, 0.789 g/mL) as your extraction solvents, will this separation be successful? Why or why not? он HO HO. HO HO Vitamin C (ascorbic acid) Vitamin A (retinol)2) A patient visits your pharmacy with a prescription for 200g Betnovate (betamethasone valerate) 0.1% w/w cream . The specials department has a Betnovate 2.5% w/w cream stock concentration.How much diluent needs to be added to the Betnovate 2.5% w/w cream in grams to produce the Betnovate 0.1% w/w cream for the prescription?State your answer to the nearest whole number.unit- g
- “Oh man, our supply person didn’t put in our order for 70% alcohol. All we have are liters of 100% on hand. We need 20 liters of 70% alcohol. How many liters of 100% alcohol will we need? And how much water will we dissolve it in? “Uh oh…this dye concentration of light green is 90%, but our current light green, which we just ran out of, has a concentration of 70%. We need our counterstain to be consistent, so what can we do to make 500 mL of 1% light green? How much of the new dye will we need, and how much water will we dissolve it in?”Concentration of Reagents (NH4)2S2O8 KI Na2S2O3 0.25 M 0.22 M 0.19 M Volumes of Solutions S₂082 (mL) Starch soln (mL) KNO3 (mL) EDTA soln (mL) KI (mL) S₂O32- (mL) x 5 9.7 0.9 26.4 0.5 9.9 1.1 Using the above data determine the concentration of I at the moment the reaction begins. HINT: This is a mixing problem. Determine the total number of moles of I and divide this amount by the total volume (in L). Be careful... If you go back and try this exercise again the values will change. Read the question carefully! Answer:How much of the suspending agent is needed to prepare a 60-mL preparation of Aluminum hydroxide gel based on this formulation? Ammonium alum 800 g Sodium carbonate 1000g Peppermint Oil 0.01% (0.01 g/100mL) Sodium benzoate 0.1% (0.1 g/100mL) Purified water, qs ad. 2000 mL a. 0.06 g b. 30 g c. 24 g d. 0.006 g
- Calculations Involving Units, mcg/mg and Other Measurement of Potency. Show your complete solution. 1. A physician orders an intravenous solution to contain 10,000 units of heparin in 1 literof 5% w/v dextrose solution to be infused at such a rate that the patient will receive500units per hour. If the intravenous set delivers 10 drops/mL, how many drops per minuteshould be infused to deliver the desired dose?Can you please answer it now please show your work.Question attached