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Two liters of a 30%  acid solution are mixed with three liters of a 20% acid solution. What percent of the mixture is acid?

 Apr 7, 2021
 #1
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The mixture is (30% + 20%)/2 = 25% acid.

 Apr 7, 2021
 #2
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Not quite exactly, the amounts of the solutions are different. 

30% of 2 liters is .6 liters. 

20% of 3 liters is .6 liters. 

Total 1.2 liters of acid and 5 liters of total mixture 

1.2/5 = 24%

 

I hope this helped. :))

 

=^._.^=

catmg  Apr 7, 2021
 #3
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.30 (2)    +    .20 (3)     = x ( 2+3)

1.2 / 5 = .24  = x      or   24 % final solution

 Apr 7, 2021

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