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A chemist has 10 liters of 20% acid. How many liters of pure acid (100%) must be added for a 40% solution?
A chemist has 10 liters of 20% acid. How many liters of pure acid (100%) must be added for a 40% solution?
A chemist has 10 liters of 20% acid. How many liters of pure acid (100%) must be added for a 40% solution?