Question

Two samples contain sulfur and
oxygen in the amounts shown in the
data table. What is the mass percent
of sulfur in compound B?
Sample Mass S (g) Mass 0 (g)
A
32.0
48.0
B
30.0
30.0

Answer 1

Answer: 50.0% (to 3 sf)

Explanation:

$\frac{30.0}{30.0+30.0}=\boxed{50.0 \%}$