The compound adrenaline contains 56.79% C, 6.56% H, 28.37% O, and 8.28% N by mass. What is the empirical formula for adrenaline?

Question

i worked the problem out and got C8O3N
but its not right..what did i do wrong?

Answer 1

(56.79/12.01) x 100
(6.56/1.01) x 100
(28.37/16) x 100

after, divide divide it by the smallest number you come up with.

Answer 2

thanks i forgot the H :)

Answer 3

Hehe. Your welcome.

Answer 4

Or you can repost your work and let us look for the error.