Q:

How many teaspoons are equal to 25 milligrams?

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Quick Answer

Teaspoons are a measurement of volume, and milligrams are a measurement of mass, so before one can calculate the teaspoons that are equivalent to 25 milligrams of a substance, one must know the density of that substance and divide 25 milligrams by the density in milligrams per teaspoon. Since milligrams per teaspoon is not a standard form of measurement for density, as milligrams are part of the metric system and teaspoons are part of the imperial system, some simple conversions must take place.

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Full Answer

If one is calculating the number of teaspoons in 25 milligrams of lead, for example, the density is 11.34 grams per cubic centimeter. There are 1,000 milligrams in a gram and 4.93 cubic centimeters in a teaspoon, so the density is 2,300.2 milligrams per teaspoon. Dividing the 25 milligrams of lead by the 2,300.2 milligrams per teaspoon provides a result of roughly 0.1 teaspoon.

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