1 mg is 10(exp.-3) gram.
A grain of salt does not equal 1 milligram; rather, it is approximately 58 milligrams. This discrepancy arises from the historical use of the grain as a unit of measurement in the apothecaries' system, where 1 grain is defined as 1/7000th of a pound. In contrast, the metric system defines 1 milligram as 1/1000th of a gram. Therefore, a grain of salt is significantly larger than 1 milligram.
A grain of salt or a small paperclip typically weighs around a milligram.
a single grain of salt
A grain of salt.
It would depend on the type of salt. If it's normal table salt, then no, you cannot see it with the naked eye.
There is one milligram in one milligram.
It's ubiquitous. To get the amount, look at the label, and multiply the "sodium" milligram-number by 2 and 1/2. That will give you the salt-content in milligrams.
The answer depends on the kind of salt that it refers to. A grain of table salt has a mass of a third to two-thirds milligrams. Large salt crystals, like those used in salt grinders (or for margaritas) have a mass of a milligram or more. The question is ambiguous: like "how long is a piece of string?"
1 milligram = 1,000 micrograms 1 microgram = 0.001 milligram
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