How many kilograms are in 25 femtograms?

Answer 1

Femto is the SI prefix standing for 10-15, kilo is the prefix for 103.

so the difference between kilo and femto is 3-(-150) or 3+15 = 18.

So there are 1018 fg in one kg. That is 1 000 000 000 000 000 000 femtogram.

Answer 2

Alright start with your given over 1.

25 femto(g) x 1 g x 1 kg = 2.5 x 10-17 kg

1 1 x 1015 femto(g) 1 x 103 g

Answer 3

25g into Kg