# The temperature of a sample of water changes from 10°C to 20°C when the water absorbs 420 joules of heat. What is the mass of the sample?

##### 1 Answer

Mar 2, 2016

#### Explanation:

The problem can be solved using the formula:

where:

Some data are provided in the problem like

and the

All you have to do is to rearrange the original formula to isolate

until you have the desired unit.