The mass of propylene glycol will be equal to 69.4 g.
- What the mass of 1 mL of that substance is;
- What the volume of 1 g of that substance is.
Propylene glycol has a density of 1.036 g/mL at
This means that every mililiter of propylene glycol has a mass of 1.036 g. Subsequently, you get
This means that each gram of propylene glycol occupies a volume of 0.9653 mL.
Since you have 67.0 mL, the mass of the sample will be
For example, if they give 67.0 g of propylene glycol, and ask you what volume the sample occupies, you can use