Question

A solution consisting of 208 mg of dopamine in 32 mL of solution is administered at a rate of 12 mlht. Complete parts (a) and (b) below! a What is the flow rate in mg of dopamine per hour? mg/hr (Type an integer or decimal rounded to the nearest thousandth as needed) Enter your answer in the answer box and then click Check Answer

Answer 1

Rate of flow of dopamine = 78 mght

Explanation:

Given,

total amount of solution = 32 ml

total amount of dopamine in 32 ml solution = 208 mg

`=>\textrm{total amount of dopamine in 1 ml solution }= (208)/(32)`

`=\ (13)/(2)\ mg`

`=>\ \textrm{ amount of dopamine in 12 ml solution }=\ (208)/(32)* 12`

`=\ (13)/(2)* 12\ mg`

= 78 mg

Since, the rate of flow of solution = 12 mlht

That means 12 ml of solution is flowing in 1 unit time and 12 ml of solution contains 78 mg of dopamine, so the rate of flow of dopamine will be 78 mght.

Answer 2

78 mg/hr

Explanation:

Data provided in the question;

Amount of dopamine contained in solution = 208 mg

Volume of solution = 32 mL

Dosage = 12 mL/h

Concentration of dopamine in solution =
`\frac{\textup{Amount of dopamine}}{\textup{Volume of solution}}`

or

Concentration of dopamine in solution =
`\frac{\textup{208 mg}}{\textup{32 mL}}`

or

Concentration of dopamine in solution = 6.5 mg/mL

Now,

The flow rate = Concentration × Dose

or

The flow rate = ( 6.5 mg/mL ) × ( 12 mL/hr )

or

The flow rate = 78 mg/hr