How much base should we add to 20 gallons of 60% acid solution to dilute it to a concentration of 50%?

- 5 gallons
- 6 gallons
- 4 gallons
- 3 gallons

CORRECT ANSWER : 4 gallons

Write your comments


Enter the code shown above:
(Note: If you cannot read the numbers in the above image, reload the page to generate a new one.)