What is the density of 10 gallons of a liquid?

Answer 1

Depends on the liquid. Also depends (at least a little) on the temperature and pressure of the liquid, although much less so than a gas. For example, at typical room temperature and pressure, Mercury has a density of approximately 13,534 kg/cubic meter. Water at the same temperature and pressure has a density of approximately 998 kg/cubic meter.

Also, the density doesn't depend on how much of a liquid you have. Density is mass over volume; that is, it's expressed in unit volume, so the density of 10 gallons of a particular liquid is the same as the density of 1 gallon or 100 gallons.

Answer 2

To calculate the density of 10 gallons of a liquid, you need to know the mass of the liquid. Density is defined as mass per unit volume. Without the mass of the liquid, you cannot determine its density.