You are presented with the following prescription: Rx Drug Y 175 mg Witepsol H15 q.s. Supply 6 suppositories (using 3 g nominal moulds) When using Witepsol H15, moulds will hold 1.06 times their nominal weight. The displacement value of Drug Y in Witepsol H15 is 1.1. Calculate the mass of Witepsol H15 required to prepare this product. Give your answer to two decimal places
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You are presented with the following prescription: Rx Drug Y 175 mg Witepsol H15 q.s. Supply 6 suppositories (using 3 g nominal moulds) When using Witepsol H15, moulds will hold 1.06 times their nominal weight. The displacement value of Drug Y in Witepsol H15 is 1.1. Calculate the mass of Witepsol H15 required to prepare this product. Give your answer to two decimal places
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- Match the units to the setup below for calculation of molarity X when dissolving a liquid X (X g)(density = D g X/mL X) in a liquid Y (Y mL)(density = D g Y/mL Y). All equations are set up so that the unit on the bottom cancels with the unit on the top to its immediate left. Be sure to match any unused answers to "Unused answer". X gx= 2._ = 7. _ 1.- 5._ X gX :+Y mL 6. mL X 1. 1. mol X/L 2. 2._ MW g X 3. 3. Dg X 4. 4._ 1000 mL 5. 5._ 6. 6._ 1 L 7. 7. 1000 L 8. Unused answer 1 mol X > > > > > > >Drug: C20H22ClN (Flexeril also known as iCyclobenzaprine HCl Using unit analysis, clearly show the set-ups for your calculations. You wish to prepare 50.0 mL of 2.30 x 10–2 M solution of your drug. (hint-how many grams will you need of your drug?) Describe how to prepare this solution from the pure drug and deionized water. Analytical balances and volumetric flasks are available to you. (Assume that your drug dissolves in water, at least to the extent necessary for this problem.) Use complete sentences in your description of the solution preparation process. A patient is given 2.0mL of a 3.00% (m/v) solution of your drug, how many milligrams of the drug did they receive? What is the molarity of a 3.00% (m/v) solution of your drug?A pipet is used to transfer 6.00 mLmL of a 3.75 MM stock solution in flask “S” to a 25.00-mL volumetric flask “A,” which is then diluted with DI H2OH2O to the calibration mark. The solution is thoroughly mixed. Next, 10.00 mLmL of the solution in volumetric flask “A” is transferred by pipet to a 50.00-mL volumetric flask “B” and then diluted with DI H2OH2O to the calibration mark. Calculate the molarity of the solution in volumetric flask “B.”
- Consider the following data: HX → X- + H+ Ką = 6.61 · 10- 5 H2A + НА + Н + Ka = 2.68 · 10-7 Calculate the Keg for the following reaction: H2A + X¯ + HA¯ +HX Record your answer in scientific notation to 3 sig figs.CH₂-COOH Citric acid has the formula HO-C-COOH I CH₂-COOH CH2–CDD - Na* + HD-C-CDD- Na CH₂-COO- COO-Na A 25.0 mL sample of a concentrated citrus fruit cordial component (e.g. for lime juice), used in the food & drinks industry, was diluted to 250 mL in a graduated volumetric flask. A 25.0 mL sample of this diluted solution, required, on average, 22.5 mL of a standard 0.100 molar sodium hydroxide solution using phenolphthalein indicator for the titration end-point. A) 0.0075 Assuming all the acid in the cordial was citric acid, calculate the concentration of the acid in g/mL in the original solution. B) 0.576 D and is tribasic acid, forming the tri-sodium salt on complete neutralisation with sodium hydroxide. 1.44 0.00225If you mixed a solution at ARCC that was 17.5 % mass/mass of the sugar sodium and then transferred 2.00 mL weighing 3.21 g into a graduated cylinder and diluted to 10.00 mL, what mass of sodium was transferred to your new solution?
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- A stock solution of analyte is made by dissolving 34.83 mg of copper (II) acetate hexahydrate(fw = 289.73 g/mol) in 25.00 mL of water. A second stock solution of internal standard is madeby dissolving 28.43 mg of germanium (I) acetate (fw = 190.74 g/mol) into 25.00 mL of water.These solutions are used to make a series of standards for flame atomic absorption analysiscalibration. The standard solutions (each 10.00 mL total volume) should have the followingconcentrations of copper: 10.00; 25.00; 50.00; 100.0; and 200.0 μM. Each calibration solutionshould also contain 50.00 μM of germanium. What is the analyte stock solution concentration? What is the internal standard stocksolution concentration?Complete this table.(a) Is it true that 26.3 mpg gasoline translates to 319 g CO:/mi? i. Convert mpg (miles per gallon) to miles per kg (of gasoline) using the density of gasoline ii. Convert kg of gasoline to kg of C assuming the overall formula for gasoline is CıH1a5 ii. Convert kg of C to kg of CO2 iv. Now finally compute g CO:/mi corresponding to 26.3 mpg and compare to 319 g CO2/miYou have been provided with data of 2 groundwater samples. The following are the major constituents (in mg/l): Parameter Sample 1 Sample 2 Са 35 27 Mg 33 5.75 Na 28 16 K 1.3 0.7 НСОЗ 177 327 SO4 15 22 Cl 6.9 4.4 Boron 4.0 1.0 EC (dS/m) 0.511 0.237 TDS (mg/l) ? Tasks: 1. Check for Ionic balance. 2. Estimate TDS in mg/L 3. Show data in a. Vertical bar graph b. Vector diagram c. Pattern diagram d. Circular diagram e. Trilinear diagram f. Schoeller semilogarithmic diagram 4. Calculate %Na, SAR, Hardness 5. Discuss suitability of these waters for agricultural use. 6. Is this water suitable for drinking? What treatments will be needed to make it drinkable? 7. Is there any seawater intrusion in these aquifers? Expalin. 8. Make any other relevant comments