600mg
One grain of morphine equals about 60 milligrams
180 milligrams of anything is the same as 180,000,000 nanograms of the same substance.
there are 1,000 milligrams in every gram so in 20 grams there are 20,000 milligrams.
20 milligrams is heavier. 300mcg (micrograms) = 0.3 milligrams.
There are 10 milligrams in one centigram. Therefore, 20 milligrams is equal to 20/10 = 2 centigrams.
Some idiot deleted my answer..Anyways.. Use google for stuff like that :).. Its VERY helpful!20 micrograms = 0.02 milligrams
60 milligrams
There are 1000 micrograms in a milligram. Here, you need to divide by 1000. 20/1000 is 0.02 milligrams.
A millilitre (mL) is a unit of volume. A milligram (mg) is a unit of mass."20 mL" of morphine would imply that the morphine is suspended in a liquid, and depending on morphine's solubility in this liquid and so forth, there can be a different amount of morphine per mL. Usually a liquid suspension like this will be "X mg per mL" or "X mg/mL" as labelled on an ampoule or something similar.For example, you one may find an ampoule that contains 4 mg/mL of morphine (in which case the answer would be 80 mg) or one that contains 20 mg/mL (in which case the answer would be 400 mg), etc.There is no fixed answer, *but* you should know that a morphine dose is measured in mg and not mL, so if all you know is the amount of mL, it's not safe to measure out a dose.
There are roughly 100 milligrams in 20 drops of water.
One kilogram is equal to 1000 x 1000 = 1000000 milligrams. Therefore, 20 milligrams is equal to 20/1000000 = 0.00002 kilograms.