Question

Sprint Read the problems below, and record your answers in a Word document. Be sure to show your work! 4:15 PM . Questions 1 and 2: You must prepare 400mL of a solution that requires a 1:8 concentration of drug. Sterile water is the diluent you should use How much drug do you need for this medication? How much diluent do you need?

Answer 1

The amount of drug required = 44.44 mL

Diluent needed = 355.56 mL

Explanation:

Data provided in the question:

Total volume of solution = 400 mL

Concentration of drug = 1 : 8

Now,

The ratio is interpreted as 1 part of drug and 8 part of diluent

Thus,

The amount of drug required =
`(1)/(1+8)*\textup{Total volume of solution}`

or

The amount of drug required =
`(1)/(1+8)*\textup{400 mL}`

or

The amount of drug required = 44.44 mL

and,

Diluent needed =
`(8)/(1+8)*\textup{400 mL}`

or

Diluent needed = 355.56 mL