Question

2. A student wishes to find the density of an irregularly shaped rock. He finds the mass to be 12.34

g. He fills a graduated cylinder to the 50.0 mL mark and drops in the rock. The fluid level rises to
54.5 mL. What is the density of the rock? (Show all work, with units, for credit.)

Answer 1

The answer is

2.74 g/mL

Step-by-step explanation:

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

`density = (mass)/(volume)`

From the question

mass of rock = 12.34 g

volume = final volume of water - initial volume of water

volume = 54.5 mL - 50 mL = 4.5 mL

So the density is

`density = (12.34)/(4.5) \\ = 2.744444444...`

We have the final answer as

2.74 g/mL

Hope this helps you