Just need to double check. How many micrograms are there in 100 grams?

Question

* There are 1000 micrograms in 1 milligram
* There are 1000 milligrams in 1 gram

How many micrograms in 100 grams?

PS - I am sure its pretty easy to calculate, I have worked it out, but just need to double check that my answer is correct.

Cheers!

Answer 1

uhm...

100 x 1,000,000

100,000,000

Answer 2

1 gram has a million micrograms and so 100 grams have 10 raised to 8 micrograms.

Answer 3

There are always one million (1 000 000) micro-anythings in a whole one.

So there would be 100 000 000 microgrammes in 100 grammes. (That's 1.0 * 10**8 in scientific notation).

Incidentally, most calculators have a button labelled "ENG" (short for "engineering units") which scales the mantissa so as to make the exponent a multiple of 3. So if you start with 1.0 * 10**8 and press "ENG", it will change to 100 * 10**6. Another press will change it to 100 000 * 10**3. Pressing the "inverse" button first makes it adjust in the opposite direction, from 1.0 * 10**8 to 0.1 * 10**9 to 0.000 1 * 10**12.

The reason for this is simply that all powers of 1000 have named prefixes: milli-, micro-, nano-, pico- and so on going down and kilo-, mega-, giga-, tera- and so on going up.

Answer 4

100 grams = 100 000 000 micrograms