SOLUTION: 320ml of 30% alcohol soln, convert this to 50% alcohol soln by adding 70% alcohol soln.

SOLUTION: 320ml of 30% alcohol soln, convert this to 50% alcohol soln by adding 70% alcohol soln.

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Question 157679: 320ml of 30% alcohol soln, convert this to 50% alcohol soln by adding 70% alcohol soln.
Answer by Fombitz(32388) (Show Source): You can put this solution on YOUR website!
Adding x ml of 70% solution, the balance equation becomes,

Solve for x.

Add 320 ml of 70% solution.
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