Question

You weigh out a sample of 2.45 grams of fluorine. How many atoms are in your sample?
My answer: 1.554*10^23 atoms of F

Answer 1

what do ya'll think @texaschic101 @phi @Luigi0210

Answer 2

@yrelhan4

Answer 3

pleaseeeeeeeeeeeeeeee

Answer 4

2.45g/18.99g.mol = 0.129mol x (6.02x10^23) - 7.77x10^22 atoms of Fluorine
I think this might be it.. I'm not sure I haven't taken chemistry in over 3 years >.<

Answer 5

Yup, that should be right. ^

Answer 6

basically number of atoms = moles*avagadros number
and atomic mass of Fluorine is 18.99
so 2.45/18.99 gives you the moles and avagadros number of 6.022*10^23..

Answer 7

thank you for the assurance @yrelhan4 :)

Answer 8

:)

Answer 9

ty!!!!!!!!!!!!!!!!