SOLUTION: how much water must be added to 12 grams of a 90% acid solution to produce a 25% acid solution?
Algebra.Com
Question 253228: how much water must be added to 12 grams of a 90% acid solution to produce a 25% acid solution?
Answer by drk(1908) (Show Source): You can put this solution on YOUR website!
This is a mixture problem. Here is the table based on the information given. Remember that water is 0% acid.
solution . . . . .% . . . . . gram . . . . . %gram
acid . . . . . . .90 . . . . .12 . . . . . . .1080
water . . . . . . 0 . . . . . .X . . . . . . .0
mixture . . . . . 25 . . . . .12 + X . . . . .300 + 12X
We can now set
1080 + 0 = 300 + 12X.
Solving for X< we get
780 = 12X
X = 65 grams of water.
RELATED QUESTIONS
how much water must be added to 12 grams of 90% iodine solution to produce a 25% iodine... (answered by checkley71)
How much water must be added to 180 grams of a solution that is 35% acetic acid to... (answered by stanbon)
how much water must be added to 500g of 30 acid solution in order to produce a 20% acid... (answered by stanbon)
how many grams of water must be added to 50 grams of a 30% acid solution in order to... (answered by ad_alta)
how much water must be added to 14 liters of a 90% acid solution to abtain a 40% acid... (answered by stanbon)
How much water must be added to 14 liters of a 90% acid solution to obtain a 40% acid... (answered by richwmiller)
How many liters of a 85% acid solution must be added to 12 liters of a 25% acid solution... (answered by stanbon,lwsshak3,richwmiller)
How many liters of a 80% acid solution must be added to 12 liters of a 25% acid solution... (answered by Alan3354)
40 grams of a 50% acid solution. How much water must be added to make a 10%... (answered by checkley77)