Finding exact atomic weight of bromine

[xiphoid]

A sample of carbon tetrabromide CBr₄ contains 96.38% bromine and 3.62% carbon by weight, using the atomic weight of C as 12amu, find the exact atomic weight of bromine

 

[pa5tabear]

This is a math problem.

Let "x" represent the total weight.

Let "y" represent the weight of four bromine atoms.

0.0362 * x = 12

0.9638 * x = y

y = 4*(bromine atomic weight)

Solve for the atomic weight of bromine.