Question

What is the percent composition of a compound if it contains 40 grams of sulfur and 60 grams of oxygen?

A) 40% sulfur and 60% oxygen
B) 50% sulfur and 50% oxygen
C) 67% sulfur and 33% oxygen
D) 33% sulfur and 67% oxygen

Answer 1

The correct answer is C.) 67% sulfur and 33% oxygen

Step-by-step explanation:

The total mass of the compound is 40 grams of sulfur + 60 grams of oxygen = 100 grams. To find the percent composition of sulfur, we divide 40 grams by 100 grams and multiply by 100:

(40 g / 100 g) * 100% = 40%

To find the percent composition of oxygen, we divide 60 grams by 100 grams and multiply by 100:

(60 g / 100 g) * 100% = 60%

So the compound contains 67% sulfur and 33% oxygen.