SOLUTION: a lab technician has 8 liters of a 15 percent solution of acid. How much distilled water must be added to reduce the concentration of acid to 10 percent?

Question 92567: a lab technician has 8 liters of a 15 percent solution of acid. How much distilled water must be added to reduce the concentration of acid to 10 percent?
Answer by ankor@dixie-net.com(22740) (Show Source): You can put this solution on YOUR website!
a lab technician has 8 liters of a 15 percent solution of acid. How much distilled water must be added to reduce the concentration of acid to 10 percent?
:
Let x = amt of distilled water, (0% solution)
:
Write a % solution equation:
.15(8) + 0(x) = .10(x+8)
:
1.2 + 0 = .10x + .8
:
1.2 - .8 = .10x
:
.4 = .10x
:
x = .4/.1
:
x = 4 liters of distilled water required
RELATED QUESTIONS
how many liters of distilled water must be added to 80% liters of 60% acid solution to... (answered by Alan3354)

How many milliliters of distilled water must be added to 30 milliliters of a 46% acid... (answered by nerdybill)

How many milliliters of distilled water must be added to 50 milliliters of a 40% acid... (answered by Alan3354)

how many liters of water must be added to 8 liters of a 40 percent acid solution to... (answered by checkley71)

A lab technician has 40 gallons of a 15% iodine solution. How many gallons of the 40%... (answered by lwsshak3)

how much water should be added to 30 liters of a 40 percent acid solution to reduce it to (answered by stanbon)

How many liters of distilled water must be added to 140 liters of an 80 percent alcohol... (answered by mananth)

A chemist has 24 liters of 9 percent sulfuric acid solution. How much pure water (in... (answered by checkley71)

how much water must be added to 14 liters of a 90% acid solution to abtain a 40% acid... (answered by stanbon)