If a cough syrup contains 0.24gm of codeine in 120ml, how many mg are contained in each teaspoonful?

Answer 1

"teaspoonful" is not a metric unit of measurement.
One has to know how many ml are in a teaspoonful

Once you have looked that up, set up a ratio.
24g/120 ml = x g/"teaspoonful" ml

cross-multiply and solve for x

Answer 2

so one teaspoon = 5ml
my answer is 1gr?

Answer 3

.24g/120 ml = x g/"teaspoonful" ml, sorry I dropped the decimal in front of 24 g
....

x = .01 g

I leave it up to you to convert .01 g to mg.

Answer 4

A physician precribes tetracycline suspension for a patient who is to take 2 teaspoofuls four times a day for 4 days, then 1 teaspoonful four times a day for 2 days. How many mls of the suspension should be dispensed?