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3 years ago

10

A unit dose of Levalbuterol HCL contains 3.0 mL in a 0.0417% concentration. How many unit doses are needed in order to obtain 10

mg of the active ingredient?

1 answer:

sergejj [24]3 years ago

7 0

Answer:

8 unit doses

Step-by-step explanation:

A 0.0417% concentration means that 100 mL of solution contains 0.0417 grams = 41.7 mg of the active ingredient.

Cross-multiplying

100 mL ------- 41.7 mg

x mL------- 10 mg

100/x = 41.7/10 --------> x = 1000/41.7 = 23.9808 = 24 mL rounding to the nearest integer.

As a unit dose of Levalbuterol HCL contains 3.0 mL,

we need 24/3 = 8 unit doses to obtain 10 mg of the active substance.

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