Calculate the mass of a rectangular solid that has a density of 2.53 g/cm3 and which measures 25 mm by 1.80 cm by 3.0

To calculate the mass of a rectangular solid, the volume of the solid is multiplied by its density. The volume of the solid is found by multiplying its length, width, and height. 25mm is also equivalent to 0.25 cm. The volume of the solid is
V = 0.25cm * 1.80 cm * 3.0 cm
V= 1.35 

In getting the mass,
mass = volume * density
mass = 1.35  * 2.53 
mass = 3.4155 g

The mass of the solid is 3.4155 grams.