What is the mass of a glass plate with a volume of 15 dm3?

Given:

V = 15 dm3 (cubic decimeter) – the volume occupied by the glass plate;

ro = 2500 kg / m3 (kilogram per cubic meter) – glass density.

It is required to determine m (kilogram) – what is the mass of a glass plate of volume V.

Let’s translate the units of measurement of volume in the SI system:

V = 15 dm3 = 15 * 10-3 = 15/1000 = 0.015 m3 (cubic meter).

Then, to determine the mass of the plate, you must use the following formula:

m = ro * V = 2500 * 0.015 = 37.5 kilograms.

Answer: a glass plate with a volume of 15 dm3 will have a mass equal to 37.5 kilograms.