Specific gravity for mercury is 13.6 g/mL. Take the specific gravity and multiply by the volume. In this case our units for specific gravity are in metric (and will be 99% of the time) so we will convert gallons (english system) to the metric system. 3.785 liters are in 1 gallon and 1000 milliliters (mL) are in 1 liter. Therefore, 3785 mL * 13.6 g/mL = 51476 g which can be simplified to 51.467 kilogram (kg). Conversion to pounds; there are 2.205 pounds per 1 kg therefore

2.205 * 51.467 = 113.5 pounds (lbs). Hope this helps.

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2.205 * 51.467 = 113.5 pounds (lbs). Hope this helps.

Any other questions or clarifications refer to my profile for contact information.