SOLUTION: How many liters of water must be evaporated from 10 L of a 30% salt solution to produce a 50% solution?

Algebra ->  Customizable Word Problem Solvers  -> Mixtures -> SOLUTION: How many liters of water must be evaporated from 10 L of a 30% salt solution to produce a 50% solution?       Log On

Ad: Over 600 Algebra Word Problems at edhelper.com


    

Question 462039: How many liters of water must be evaporated from 10 L of a 30% salt solution to produce a 50% solution?
Answer by solver91311(24713) About Me  (Show Source):
You can put this solution on YOUR website!


If you have 10L of 30% solution, then 3L must be salt. Since the salt stays put when you evaporate the liquid, after the evaporation, there will still be 3L of salt. In order to have a 50% solution with 3L of salt, you need 6L of salt water. 10 minus 6 is 4 Liters that need to evaporate.


John

My calculator said it, I believe it, that settles it
The Out Campaign: Scarlet Letter of Atheism