Question

A rock has a mass of 12.947g. A graduated cylinder has 41.3 mL of water. The rock is placed in the water, and now the volume reads 46.2mL. What is the density of the rock?

Answer 1

Density = 2.64 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 = 12.947 g

Volume of rock = final volume of water - initial volume of water

Volume = 46.2 mL - 41.3 mL = 4.9 mL

Substitute the values into the the above formula and solve for the density

That's

`Density = (12.947)/(4.9) \\ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: = 2.642244`

We have the final answer as

Density = 2.64 g/mL

Hope this helps you