Problema Solution
How many milliliters of 20% acid solution need to be added to 50mL of 60% acid solution to get a solution that is 45% acid?
Answer provided by our tutors
Let 'x' represent the milliliters of 20% acid solution.
0.20x + 0.60*50 = 0.45(x + 50)
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click here to see the solution solved for x
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x = 30 mL
30 mL of 20% acid solution is needed.