A chemical supply company has 60 liters of a 30% HNO3 solution.
A chemical supply company has 60 liters of a 30% HNO3 solution. How many liters of pure undiluted HNO3 must the chemists add so that the resultant solution is a 50% solution?
Answer/Solution
24
Steps/Work
60 liters of a 30% HNO3 solution means HNO3 = 18 liters in 60 liters of the solution.
Now, let x be the pure HNO3 added.
As per question,
18 + x = 50% of (60 + x)
or x =24. Hence, D
Now, let x be the pure HNO3 added.
As per question,
18 + x = 50% of (60 + x)
or x =24. Hence, D