Question

A rock weighing 75.0g is placed in a graduated cylinder displacing the volume from 31.4 ml to 36.5ml. What is the density of the rock in grams /cubic centimeter.

Answer 1

Answer:

14.71 g/cm³

Explanation:

The density of a substance can be found by using the formula

$density = \frac{mass}{volume}$

volume = final volume of water - initial volume of water

volume = 36.5 - 31.4 = 5.1 mL

But

1 mL = 1 cm³

5.1 mL = 5.1 cm³

From the question we have

$density = \frac{75}{5.1} \\ = 14.705882..$

We have the final answer as

14.71 g/cm³

Hope this helps you