Question

How many moles of bromine (Br) atoms are in a sample of 2.03 × 10^24 atoms?

0.297 mol Br

3.37 mol Br

12.3 mol Br

1.22 × 1047 mol Br

Answer 1

Avogadro

Answer 2

what? lol

Answer 3

Avogadro's number

Answer 4

never hear of it ha ?

Answer 5

*heard

Answer 6

lol, i am terrible at chemistry and im just trying to get my class over with. so no :/

Answer 7

Avogadro's number : 6.022 x 10^23 atoms/mol

Answer 8

okay, see if u can figure out the rest using above unit conversion

Answer 9

Avogadro's number tells us how many atoms are there in 1 mol

Answer 10

using that can u figure out how many moles can the 2.03 × 10^24 atoms make