Which of the following is the approximate density of liquid water at room temperature (25°C)?

• A. 0.50 g/cm^3
• B. 10.0 g/cm^3
• C. 2.00 g/cm^3
• D. 1.00 g/cm^3

Answer: (D)

Verified step by step guidance

1. Recall that density is defined as mass per unit volume, expressed as \(\text{density} = \frac{\text{mass}}{\text{volume}}\).
2. Understand that the density of liquid water at room temperature (25°C) is a well-known standard value used as a reference in many chemistry problems.
3. Remember that the commonly accepted approximate density of water at 25°C is about 1 gram per cubic centimeter (\$1.00\ \text{g/cm}^3$).
4. Compare the given options to this known value: 0.50, 10.0, 2.00, and 1.00 g/cm\(^3\).
5. Identify that the value closest to the known density of water at room temperature is \$1.00\ \text{g/cm}^3$, which is the correct choice.