Ametal object has a mass of 8.37g. when it was in a graduated cylinder containing 20.0 ml of water, the water level rose to 23.1 ml. what is the density and identity of the metal

The density and identity of the metal would be 2.7 g/ml and aluminum respectively

Mathematically, density = mass/volume

Mass of the object = 8.37 g

Volume of the object = 23.1 - 20

                                 = 3.1 ml

Density of object = 8.37/3.1

                               = 2.7 g/ml

Thus, the density of the object is 2.7 g/ml and the object is most likely an aluminum metal.

More on density can be found here: link

Mass of metal is 8.37 g, volume of water in graduated cylinder is 20 mL. After adding the metal, water level increases to 23.1 mL. The volume of metal is equal to the increase in water level.

The increase in water level can be calculated by taking difference of final and initial level of water.

Thus,

Density of metal is defined as mass per unit volume of metal. It can be calculated as follows:

This value corresponds to the density of aluminum.

Therefore, density is 2.7 g/mL and metal is aluminum.

i just learnt this recently but i need to look through my notes again

shield volcanos are angry and get mad over the smallest things so much that there heads erupt   pahoehoe and a'a lava. a composite volcano is the poller opposite of a shield volcano. its   peaceful thing and knows how to control its emotions.