# How much water must be evaporated from 100 gallons of a 10% brine (saltwater) solution to get a 40% brine (saltwater)?

##### 1 Answer

Oct 18, 2015

75 gallons of water

#### Explanation:

Let

Mass of brine in volume of

Mass of brine in 100 gallons of 10 % brine solution =

Mass of brine in volume of

Total mass of the salt is constant due to evaporation

0.4

Volume of water evaporated =

Volume of water evaporated = 100-25 = 75 gallons