Question

High-density liquid (d = 2.32 g/cm3) was measured to occupy a volume of 49.4ml using a graduated cylinder. report the mass of the liquid with correct precision. is this result in accordance with the rules for significant figures

Answer 1

The formula of the density is given as:

`density = (mass)/(volume)`

Rearranging the formula as:

`mass = density * volume`

Substituting the values in the above formula:

`mass = 2.32 g/ml * 49.4 ml`

`mass = 114.608 g`

No, the result is not in the accordance with the rules for significant figures. As the mass of the liquid have 6 significant figures whereas if the rules of significant figures are applied then the mass must be in 3 significant figures.