a rock weighing 32.0 g is placed in a graduated cylinder displacing the volume from 12.3 ml to 16.8 ml. what…

a rock weighing 32.0 g is placed in a graduated cylinder displacing the volume from 12.3 ml to 16.8 ml. what is density of the rock in g/ml? density = ? g/ml record your answer to the tenths place.

a rock weighing 32.0 g is placed in a graduated cylinder displacing the volume from 12.3 ml to 16.8 ml. what is density of the rock in g/ml? density = ? g/ml record your answer to the tenths place.

Answer

Explanation:

Step1: Calculate the volume of the rock

The volume of the rock is equal to the change in volume of the water in the graduated - cylinder. So, $V=V_2 - V_1$, where $V_2 = 16.8\ mL$ and $V_1 = 12.3\ mL$. $V=16.8 - 12.3=4.5\ mL$

Step2: Calculate the density of the rock

The density formula is $\rho=\frac{m}{V}$, where $m = 32.0\ g$ and $V = 4.5\ mL$. $\rho=\frac{32.0}{4.5}\approx7.1\ g/mL$

Answer:

$7.1$