Calculating Grams of Oxygen Combined with Iron to Form Iron Oxide
Question:
11.1 grams of iron combine chemically with oxygen to form 15.9 g of the compound, iron oxide. How many grams of oxygen were combined?
Answer:
4.8 grams of oxygen were combined with iron to form the compound iron oxide. The correct answer is 4.8 g.
Explanation:
To determine the amount of oxygen combined with iron, we need to calculate the difference in mass between the compound (iron oxide) and the initial mass of iron.
Given:
Mass of iron = 11.1 g
Mass of iron oxide = 15.9 g
Calculations:
Mass of oxygen = Mass of iron oxide - Mass of iron
Mass of oxygen = 15.9 g - 11.1 g
Mass of oxygen = 4.8 g
Therefore, 4.8 grams of oxygen were combined with iron to form the compound iron oxide. The correct answer is 4.8 g.