There are 1000ug in a milligram. Therefore 3/1000 is the dilution you need. Decide on the volume, divide by 1000, multiply by 3 and that is the volume of stock that you need.
There are 1000 micrograms in one milligram.
1000mcg per milligram.
1 milligram = 1,000 micrograms 1 microgram = 0.001 milligram
There are 1000mcg (micrograms) per milligram.
0.001 a milligram is 1,000 of a gram, 1 microgram is 1,000,000th of a gram.
There are 1,000 micrograms (mcg) per milligram. So, multiply milligrams by 1,000 to get micrograms.
This question doesn't make sense. This is because the term parts per million means either weight per weight i.e. micrograms per gram or milligrams per kilograms, or weight per volume, i.e. milligrams per litre or micrograms per millilitre.
There are 1000 micrograms in a milligram. Therefore 2000 micrograms is 2 milligrams.
1000. This is because ppm commonly means milligram per litre to a chemisty. There are 1000 micrograms per litre in 1 ppm.
There are 1000 micrograms in every milligram, so you divide the amount in micrograms by 1000 to get the amount in milligrams. Think about it this way: A milligram is bigger, so there has to be more micrograms to make up for this. Also remember, that mcro, by SI convention means 0.000001, or a millionth (of a gram) and milli means 0.001. 0.001/0.000001 is 0.001. So this means a microgram is 0.001 milligrams, 0.001 milligrams to get this to 1 milligram, you have to multiply by 1000. Therefore you have 1 milligram equals 1000 micrograms.
mcg is an abbreviation of microgram, so 1 mg = 1000 microgram = 1000 mcg.
There are 1000mcg (micrograms) per milligram. * So, mg x 1,000 = mcg