Convert your densities to kg or L and compare these with values with those in g or mL?

Answer 1

Density is given by mass over volume.

Consider the example:

1. Given, density = 5 kg/m3 = [kilogram per cubic metre or kilogram per metre cubed].

Volume = 10 m3

To find mass:

Density = Mass/Volume. => Mass = Density X Volume = 5 X 10 = 50 kg

To compare this with value in g, know that 1 kg = 1000 g. ==> 50 kg = 50 X 1000 = 50000 g

2. Given, density = 3 kg/l = [kilogram per cubic litre]

Mass = 81 kg

To find volume:

Density = Mass/Volume => Volume = Mass/Density = 81 / 9 = 27 L

Length = cube root of volume = cube root of 27 = 3

To compare this with a value in mL, know that 1 L = 1000 mL => 3 L = 3 X 1000 = 3000 mL

Answer 2

To convert densities given in g/mL to kg/L, you need to divide by 1000. For example, 1 g/mL is equal to 0.001 kg/L. When comparing densities, the numerics will remain the same between g/mL and kg/L, but the units will be different - g/mL versus kg/L.