Question

2. If the penicillin dosage is weight dependent, a new born that weighs 9.2 Kg should receive how much penicillin in the IV uid if the proper drug dose is 5 mg/Kg? If the drug is provided at 2 mg/mL, how much should be used to treat this new born infant?

3. You need to make up at cell culture solution that contains protein X. The concentration of the protein in the cell culture solution needs to be 50μg/mL. The total volume of the cell culture media to be made up is 0.5L. How much of the protein X must be added to the cell culture media to end up with a 50μg/mL protein culture solution? Please provide you answer in mg (milligram).

4. You need to make up 50mL of 3% NaCl solution. Determine the amount of NaCl and the approximate amount of H2O needed to make up this solution.

5. A package of phosphate bu er mix contains 20g of bu er powder. You need to make up a 10% phosphate bu er solution. How much H2O will you need to make up your 10% bu er solution using the entire package at once?

Answer 1