A 0.150 M sodium chloride solution is referred to as a physiological saline solution because it has the same concentration of salts as normal human blood. Describe the step by step procedure on how to prepare 450.0 mL of a physiological saline solution.
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- 2 if there is a stock solution of 2000 (ug/ml) , is it possible to use SERIAL DILUTION to generate the following 8 tubes with their concentrations? A 2000 (ug/ml) B 1500 (ug/ml) C 1000 (ug/ml) D 750 (ug/ml) E 500 (ug/ml) F 250 (ug/ml) G 125 (ug/ml) H 0 (ug/ml)3. What is the pH of a solution made by mixing 25.00mL of .1500M NaOH with 25.00mL of .2500M HClO2?9. Find the final concentration as a percent (w/v) of dextrose when 75 mL dextrose 50 % (w/v), 50 mL of sodium chloride 0.9 % (w/v), and 100 mL of dextrose 5 % (w/v) sodium chloride 0.45 % (w/v) solution are mixed together.
- 1. How many mL of distilled water must be added to make the Benzalkonium chloride preparation isotonic? 2. How many mL of 0.9% NaCl must be added to make a 100mL solution?1) A solution is made by combining 128 mL of ethanol and 0.452 L of water. In this solution, what is the solvent? What is the solute?2) If a solution contains 128 mL of ethanol and water to make 0.452 L of solution, what is the (v/v)% concentration?3) How many grams of sodium carbonate are needed to make 350 mL of a 0.5% (w/v) sodium carbonate solution?4) What is the molarity of a magnesium chloride solution made by dissolving 8.7g of magnesium chloride in 2.45 L of water?5) An exercise in lab requires you to make 500 mL of a 2.3M beryllium sulfide solution. How many moles of beryllium sulfide will you need?6) How many grams of sodium chloride are needed to make 0.60L of a 2.3M sodium chloride solution?7) How hot must the air in a balloon be heated if initially it has a volume of .750 L at 20°C and the final volume be 1.00 L?8) Convert 455 mmHg to atm.9) A container of gas has an initial pressure of 0.8 atm. The pressure is increased to 1.1atm and the final volume of gas is 2.3 liters.…6. Your pharmacy has on hand Robitussin CF Syrup (guaifenesin 100 mg/1 tsp).You receive a prescription for Robitussin CF Syrup and the patient is to receive 250 mg of guaifenesin q4h. How many milliliters will the patient receive in 1 dose? If you dispense a 4oz bottle of syrup, how many doses will the patient receive?
- 1. What is the concentration of the solution prepared by diluting 50 µl of ampicillin (1.0mg/ml) to a final volume of 1ml? 2. Determine the volumes of phenol, chloroform, and isoamyl alcohol required to prepare250 ml of a 25:24:1 (v/v) solution.1. A prescription calls for 50 mg of chlorpheniramine maleate. Using a prescription balance with a sensitivity requirement of 6 mg, explain how you would obtain the required amount of chlorpheniramine maleate with an error not greater than 5%.1. The standard curve was prepared using BSA as a standard with a concentration of (2.0 mg/ml, 1ml). Fill in the table below and show the calculations for determining the final BSA concentration in each vial. Formula C1V1=C2V2
- 1) If you have 2.5g of hydrocortisone POWDER, how many grams of a 0.05% ointment can be compounded? 2) How many mL of a 0.45% saline solution can be made with 6750 mg of sodium chloride? 3) Your pharmacy receives an order to compound 120 g of a 1.25% cream. How many mg of drug are required to compound this order? 4) Is it possible to make 1200 mL of a 30% dextrose solution with only 75 g of dextrose? 5) You are asked to compound a 15% zinc oxide cream. How many grams of this cream can you make using 30,000mg of zinc oxide? 6) Using 45g of acetic acid, how many mL of a 20% acetic acid solution can be made? 7) Calculate the percent strength of a solution when 8 g of drug is dissolved in 400 mL of solution. 8) Calculate the percent strength of a solution when 2.5 g of drug is dissolved in 750 mL of solution. 9) Calculate the percent strength of a solution when 5000 mg of drug is dissolved in 500 mL of solution.1.What is the molar concentration of a 15% glycerol solution? (Glycerol has a molecular weight of 92.1.)2.How do you prepare 750 mL of 0.5X gel running buffer from a 5X stock solution?2- How much solution (in ml) of silver nitrate at a molar concentration of 0,0540 mol/l is needed as to receive 200 ml of the solution with desired titrimetric conversion factor of silver nitrate (М=169,863 g/mol) corresponding sodium chloride (М=58,443 g/mol) to be equal to 1,810 ∙10-3 g/ml? Express numerical result with an accuracy of: Х,Х