Question

500 gram iron ore sample was determined to contain 242 grams of iron. What is the mass percent of iron in the ore

Answer 1

Answer:

48.4%

Explanation:

Mass percent is calculated by the equation:

mass of element / total mass * 100%

Plugging in the figures of the problem: 242g / 500g * 100% = 48.4% (grams are in the numerator and denominator, so they cancel out)