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0.15 mg Remember, take amount of micrograms and divide by 1000 to get milligrams.
Three milligrams.* There are 1000mcg per milligram: 300mcg = 300/1000 = 3mg
Vitamin B-12 is a big, fat vitamin molecule. It has a formula of C63H88CoN14O14P and a molecular mass of 1355.37 g/mol. Notice that there is only one atom of cobalt (Co) in that molecule. There is only a single atom of phosphrus (P), too, for what that's worth. The 1355.37 g/mol means that there are 1355.37 grams in a mole of that substance (B-12). Cobalt has a molecular mass of 58.93 g/mol. If we set up a ratio of cobalt to B-12, we will get 58.93 : 1355.37 as the cobalt to B-12 ratio. See that the ratio? That's cobalt to B-12, and if we take the same ratio and extend it to the 1000 micrograms (1000mcg) in the vitamins, we'll get about 43.5 micrograms cobalt to 1000 micrograms of B-12. We've got about 43.5 micrograms of cobalt per 1000 micrograms of B-12.
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There are 1000 micrograms in a milligram. Therefore, you multiply by 1000 here. 5 milligrams is 5x1000 or 5,000 micrograms.
There are 1,000,000 micrograms in a gram. Therefore you have to divide 5000 by 1,000,000. 5000/1000000 is 0.005 grams.
1,000 micrograms (mcg) per milligram.
You have to convert milligrams to micrograms here. Therefore 0.02mg is 20 micrograms. There are 5 x 0.02mg in 100 micrograms.
There are 1000 micrograms in a milligram. So you need to multiply by 1000 here. 0.3x1000 is 300 micrograms.
2,000 mcg.
You would have to take 25 - 400 microgram pills to equal a dose of 10 milligrams.I am curious why you want to take so much? Daily folic acid requirement is about 1000 micrograms (or 2 1/2 of the 400 micrograms pills). 1 milligram = 1000 micrograms.
The difference between milli and micro is an order of magnitude -- a factor of 1000. In other words, one milligram equals 1000 micrograms. Hence, 0.25 mg -- that is, a quarter of a milligram -- is equal to 250 micrograms.
If you take all of that solid and dissolve it in 0.5 millilitres, you get the same concentration. This is because 1ml/200ug, x100ug is 0.5ml.
Depending on your age, the dosage of B12 per day can vary anywhere between .4 micrograms and 2.8 micrograms.
1.5 - 2 micrograms is the recommended daily dose.
When a woman is pregnant she should take 800 micrograms a day in order to prevent birth defects