Which of the following is the correct way to express 500 milliliters using SI units?

• A. 50 L
• B. 500 L
• C. 0.5 L
• D. 5 L

Answer: (C)

Verified step by step guidance

1. Understand that the SI unit for volume is the liter (L).
2. Recognize that 'milli' is a prefix meaning one-thousandth (1/1000) of the base unit.
3. Convert 500 milliliters (mL) to liters (L) by using the conversion factor: \(1\ \text{mL} = 0.001\ \text{L}\).
4. Set up the conversion: \(500\ \text{mL} \times \frac{0.001\ \text{L}}{1\ \text{mL}}\).
5. Perform the multiplication to express 500 mL in liters, which will give the volume in SI units.