Question

Based on the densities listed with each material, which material(s) would float on a bath of ethanol whose density is 0.789g/mL? I. distilled water, 1.00g/mL II. octane, 0.706g/mL III. polyurethane, 1.20g/mL IV. silicon, 2.33g/mL

Answer 1

2. Octane, 0.706 g/mL. Anything with a lower density than the medium will float on top of the medium.