Question 10 4.5 pts You wish to prepare 400 mL of a 1:10 solution using tablets...
Name Solution Calculations Directions: Clearly show the setups for your calculations. 1. You wish to prepare 50.0 mL of 2.30x 102 M solution 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. Show any required calculations you...
Buffer Practice 1.) You wish to prepare 750 mL of a buffer solution of pH = 7.00 and you decide to use NaH2PO4 as the acid, K2 = 6.2 x 10. You have on hand a 0.175 M solution of this acid. Kai = 7.5 x 103, Ka2 = 6.2 x 10-8, K3 = 4.2 x 10-13 a.) Calculate the pH of the NaH2PO4 solution. b.) Calculate the grams of Na2HPO4 that need to be added to 750 mL of...
You wish to prepare 100 mL (total volume) of a buffer solution that is 0.025 M in carbonic acid, pH 7.25. You have solid H2CO3 and solid NaHCO3. Calculate how many grams of H2CO3 and HCO3- you need to weigh out to prepare this solution.
You wish to prepare 100 mL of a buffer solution that is 0.025 M in carbonic acid (H2CO3). The pKa of H2CO3 is 6.351. Calculate the amount of H2CO3, in grams, that you will need to weigh out.
You wish to prepare 100.0 mL of a 325.0 ppm w/v sodium (MW = 22.9897 g/mol) solution. How many grams of sodium dichromate dihydrate (Na2Cr2O7·2H2O, MW = 297.998 g/mol) are needed to prepare this solution? Assume the final solution has a density of 1.00 g/mL.
1. Oral tablets of losartan potassium (C22H22ClKN6O) are available, each containing the equivalent of 45 mg of losartan. If the molecular weight of losartan is 422.9 and that of losartan potassium is 461.9, calculate its quantity in each tablet. 2. An ophthalmic solution is labeled to contain the equivalent of 0.55% of ciprofloxacin base (m.w. 332). How many milligrams of ciprofloxacin hydrochloride (m.w. 386) may be used to prepare each 15 mL of the solution? 3. A certain electrolyte solution...
How many 2-g tablets are needed to prepare 100 mL of a 12% solution?
Answer the following please. 1. Isoniazid is available in 30 mg unscored tablets. 0.06 g has been prescribed po. You should administer how many unscored tablets? 2. The physician has prescribed 25 mg of Dilaudid HP for administration IM. The Dilaudid HP is available in an ampule containing 20 mg in 1 cc. In preparing the drug for administration, what volume should you withdraw from the ampule? 3. 0.3 g of Elixophyllin has been prescribed po. 150 mg of Elixophyllin...
You wish to prepare 250.0250.0 mL of a 225.0225.0 ppm w/v Fe2+Fe2+ (MW=55.845 g/molMW=55.845 g/mol) solution. How many grams of ferrous ammonium sulfate hexahydrate (Fe(NH4)2(SO4)2⋅6H2O(Fe(NH4)2(SO4)2⋅6H2O, MW=392.14 g/molMW=392.14 g/mol) are needed to prepare this solution? Assume the final solution has a density of 1.00 g/mL.
Dugul, allu u Expressions of Concentration - 1 Answer each question based on the variables provided. Where applicable, truncate all answers to two decimal places unless otherwise stated. 5. How many grams of drug A should be used to prepare 100 mL of a 1:1250 solution? 6. If you need to dissolve 8 tablets of active ingredient B, each containing 3 mg, in 15,750 mL, what is the ratio strength (w/v)? 7. How many grams of active ingredient F should...