Question

2. An insoluble, nonreactive solid metal sphere weighing 21.52 g is added to 28.7 mL of water in a graduated cylinder. The water level rises to 32.8 ml. Calculate the density of the metal.

Answer 1

mass of the sphere m =21.52 g

volume of water only V₁ =28.7 ml

volume of water +sphere V₂ =32.8 ml

therefore volume of sphere only V = (volume of water +sphere)-volume of water only

=V₂ -V₁

_{=32.8ml -28.7 ml}

V=4.1 ml

density =mass/volume =m/v =21.52 g/4.1 ml

density =5.248 g/ml