Arock weighing 15.0g is placed in a graduated cylinder, displacing the volume from 25.0 ml to 36.2 ml. what is the density of the rock in grams/cubic centimeter?

Answer : The density of the rock is,

Explanation : Given,

Mass of the rock = 15 g

Initial volume = 25 ml

Increased volume = 36.2 ml

First we have to calculate the volume of the rock.

Volume of rock = Increased volume of water - Initial volume of water

Volume of rock = 36.2 ml - 25 ml = 11.2 ml

Now we have to calculate the density of rock.

Formula used :

Now put all the given values in this formula, we get the density of the rock.

Conversion :

Therefore, the density of the rock is,

the density(ratio between mass and volume as m/v) decreases from top to bottom in periodic table group as the size increases and nuclear charge decreases. but in periods density increases from left to right as atom size decreases and nuclear charge increases.