SOLUTION: Suppose you work in a lab. You need a 15% acid solution for a certain test, but your supplier only ships a 10% solution and a 30% solution. Rather than pay the hefty surcharge to h
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-> SOLUTION: Suppose you work in a lab. You need a 15% acid solution for a certain test, but your supplier only ships a 10% solution and a 30% solution. Rather than pay the hefty surcharge to h
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Question 635395: Suppose you work in a lab. You need a 15% acid solution for a certain test, but your supplier only ships a 10% solution and a 30% solution. Rather than pay the hefty surcharge to have the supplier make a 15% solution, you decide to mix 10% solution with 30% solution, to make your own 15% solution. You need 10 liters of the 15% acid solution. How many liters of 10% solution and 30% solution should you use? Answer by ewatrrr(24785) (Show Source):
Hi,
needing 10 liters of the 15% acid solution...
How many liters of 10% solution and 30% solution should you use?
Note: y = 10L - x
.30x + .10(10-x) = .15·10 |May multiply thru by 100 first, if one wishes
.20x = .5
x = 2.5L of the 30% and 7.5L of the 10%
and...
