SOLUTION: During Chemistry class, Tamika plans to mix a bottle containing 50ml of 10% HCL solution with a bottle containing 25% HCL solution. If she wants a 20% solution. How much 25% HCL mu

Question 519698: During Chemistry class, Tamika plans to mix a bottle containing 50ml of 10% HCL solution with a bottle containing 25% HCL solution. If she wants a 20% solution. How much 25% HCL must be added?
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
let = ml of 25% HCL solution to be added
In words:
( final ml of HCL ) / ( final ml of total solution ) = 20%
given:
ml of HCL in 10% solution
ml of HCL in 25% solution
-----------------------------

100 ml of 25% HCL solution are needed
check:

OK
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