* Density is key: Mass and volume are related through density. Density is the mass per unit volume (Density = Mass/Volume).
* Constant Density: If the density of the substance remains constant, then tripling the volume will also triple the mass. This is because you're essentially adding more of the same material.
* Changing Density: If the density changes, the relationship between mass and volume becomes more complex. Here are some examples:
* Compressing a gas: Compressing a gas increases its density (more mass in the same volume). Tripling the volume of a compressed gas while keeping its mass constant would decrease the density.
* Adding a different substance: If you add a less dense substance to a mixture, the overall density will decrease. Tripling the volume might not triple the mass.
In summary:
* To determine the change in mass, you need to know how the density changes.
* If the density stays constant, tripling the volume will triple the mass.
* If the density changes, the relationship between mass and volume is not straightforward.
