Assume the recommended single dose of an antihistamine for a child weighing between 18-23 lbs is 0.75 teaspoons (tsp). if 1.00 tsp contains 12.5 mg/5 ml of the active ingredient in the antihistamine, how many milligrams of active ingredient does the recommended dose for a child weighing between 18-23 lbs contain? assume that 1.00 tsp = 5 ml

Question

Darren

Chemistry

8 December, 21:07

Assume the recommended single dose of an antihistamine for a child weighing between 18-23 lbs is 0.75 teaspoons (tsp). if 1.00 tsp contains 12.5 mg/5 ml of the active ingredient in the antihistamine, how many milligrams of active ingredient does the recommended dose for a child weighing between 18-23 lbs contain? assume that 1.00 tsp = 5 ml

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Cailyn Sellers · Answer 1

We are given that 1 teaspoon is equivalent to 5 mL, therefore 0.75 teaspoon is:

0.75 teaspoon * (5 mL / 1 teaspoon) = 3.75 mL

So the mass is density times volume:

mass = (12.5 mg/5 ml) * 3.75 mL

mass = 9.375 mg