That would be 5.0 times ten to the negative five grams, of 0.00005 grams (if we presume the 50 figure was an exact number or ignore issues of representing the percision of a value). You're gonna need twice that for a good acid trip though, so I'd save it up for when you get more.
To convert grams to micrograms, multiply by a million.
50mcg equals 0.05mg (There are 1,000 micrograms (mcg) per milligram)
.0025 Grams
3.5e-5 grams
50 mcg stands for 50 micrograms. It is a unit of measurement used to express the amount of a substance, such as medication or nutrients, in very small quantities.
50 mcg = .0000017636981 (1.7636981 × 10-6) ounces
2.4 grams equal 2400 mg
25mg (Milligrams) is the equivalent of .025g (Grams).
.0005 g
1 gram = 1,000,000 micrograms so 10 grams = 10,000,000 mcg. Simple!
100 µg = 0.0001 g
Four million micrograms.