Which of the following correctly expresses a volume of 1.25 liters in milliliters?

• A. 0.125 mL
• B. 1250 mL
• C. 12.5 mL
• D. 125 mL

Answer: (B)

Verified step by step guidance

1. Recall the conversion factor between liters and milliliters: 1 liter (L) is equal to 1000 milliliters (mL).
2. Set up the conversion by multiplying the given volume in liters by the conversion factor: \$1.25 \, \text{L} \times \frac{1000 \ \text{mL}}{1 \ \text{L}}$.
3. Notice that the unit liters (L) will cancel out, leaving the volume in milliliters (mL).
4. Perform the multiplication of the numerical values: \$1.25 \times 1000$ (do not calculate the final number here, just set up the expression).
5. The result from the multiplication gives the volume in milliliters, which correctly expresses 1.25 liters in milliliters.