SOLUTION: How many liters of a 10% solution of acid should mixed with 60% solution of acid to obtain a 20 liters of 50% solution?
Please show me a step by step guide through because I wa
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Question 815286: How many liters of a 10% solution of acid should mixed with 60% solution of acid to obtain a 20 liters of 50% solution?
Please show me a step by step guide through because I want understand the material to pass a quiz on these types of questions.
Answer by josgarithmetic(39617) (Show Source): You can put this solution on YOUR website!
100*{amount of pure acid}/{amount of solution}={percentage concentration}
Let u = how many liters of the 10% acid
Let v = how many liters of the 60% acid
Wanting 20 liters of acid solution, .
Using the percentage concentrations,
is how much of the actual pure acid; this is in scaled-up form, since the percent concentrations are 100 times larger than their fractional meanings.
and ;
Solve the system for u and v.
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