2.5 billion
= 200 x 109 micrograms
25 micrograms = 25.10-9 kg
no; the kilogram is bigger: 1 kg=109 micrograms.
10.5 what? micrograms? pounds? kilograms?
00038 kilograms = 38000000000 micrograms
1kilograms=1000grams=10000milligrams. =>0.002kilograms(as I understand your writing)=2grams=20milligrams.
0.025 mg = 25 mcg
There are 1,000,000,000 micrograms in a kilogram. You have to multiply by a billion here. 4.23x1,000,000,000 gives you 4,230,000,000 micrograms.
25 dag is 0.25 kilograms.
0.002087 kilograms = 2087000 micrograms
There are 1000 micrograms in one milligram. Therefore, 25 milligrams is equal to 25 x 1000 = 25000 micrograms.
Since 1 kilonewton (kN) is equal to 1000 kilograms, 25 kilonewtons would be equal to 25,000 kilograms.