Math
posted by Glenn
Professor Beaker has a 50milliliter solution containing 60% acid. How many milliliters of pure water should he add to this solution to produce a solution containing 40% acid?

Steve
see related questions below.

Glenn
I've tried looking at similar problems but I'm still confused.

Steve
the amount of acid in the parts must add up to the amount in the final mix. If x ml of water (0% acid) are added, then you need
.60*50 + 0x = .40(50+x)
Now just solve for x. This assume you know what "%" means ...
Respond to this Question
Similar Questions

Algebra 2
How much pure acid must be added to 6 milliliters of a 5% acid solution to produce a 40% acid solution? 
algebra
A chemist mixes some 20% acid solution with pure 100% acid to increase the concentration. How much pure acid and acid solution should be mixed to form 100 milliliters of 40% acid solution? 
algebra 2
A chemist mixes some 20% acid solution with pure 100% acid to increase the concentration. How much pure acid and acid solution should be mixed to form 100 milliliters of 40% acid solution? 
math
60 ml of solution A is mixed with 120 ml of solution B to produce solution C which contains 8% of pure acid. If 80ml of solution A is mixed with 40ml of solution B, a solution D containing 10% of pure acid can be produced. find the … 
chemistry
A student is given 3 beakers: Beaker 1 50.0 ml of a solution produced by dissolving 6.00 grams of a weak monoprotic acid ,HX, in enough water to produce 1 liter of solution. The empirical formula of HX is CH2O. The solution contains … 
Math
Professor Baird wants to mix a solution containing 10% acid with one containing 15% acid to obtain a 20 ounce solution containing 12% acid. How many ounces of the 10% solution should the professor use? 
Chemistry
Suppose you have 1 l of acid solution. With a pH of 2" , you add 1 l of pure water to it, wat happens to the pH of the solution? 
Algebra
100mL of a solution contains 30 mL of acid; this is called a 30% acid solution because part 30  =  = 0.30. whole 100 How many milliliters of acid x would need to be added to the solution to turn it into a 50% solution ? 
HELP MATH PLEASE
You have two beakers of acid solution. One beaker contains a 17% acid solution, and the other beaker contains a 91% ACID SOLUTION. How many liters of the 17% acid solution must you mix with the 91% acid solution to make 2 liters of … 
Algebra
A chemist wishes to mix a solution that is 4% acid. She has on hand 66 liters of a 2% acid solution and wishes to add some 8% acid solution to obtain the desired 4% acid solution. How much 8% acid …