Which statement best describes the mass percent of water in an apple if the apple has a total mass of 150 g and contains 120 g of water?

• A. The mass percent of water is 80%.
• B. The mass percent of water is 150%.
• C. The mass percent of water is 20%.
• D. The mass percent of water is 12%.

Answer: (A)

Verified step by step guidance

1. Identify the total mass of the apple and the mass of water it contains. Here, the total mass is 150 g and the mass of water is 120 g.
2. Recall the formula for mass percent, which is given by: \(\text{Mass percent} = \left( \frac{\text{mass of component}}{\text{total mass}} \right) \times 100\%\).
3. Substitute the given values into the formula: \(\text{Mass percent of water} = \left( \frac{120\,\text{g}}{150\,\text{g}} \right) \times 100\%\).
4. Simplify the fraction inside the parentheses to find the ratio of water mass to total mass.
5. Multiply the simplified ratio by 100 to convert it to a percentage, which represents the mass percent of water in the apple.