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If a chemist needs to make 60 ml of a solution using 5% solution of acid and has 3% and 8% acid how much would she need of each to make 5% solution of acid

 Feb 5, 2020

Best Answer 

 #1
avatar+21931 
+2

Total soln = 60ml    0f 5 %   

 

 

Volume of 3% = x      then the remainder,   60-x   is the 8% solution

      total of constituents = total of final solution

 

.03 x    +  .08 (60-x)   = .05 (60)        solve for x the amount of 3% needed.....then the amount of 5% needed is 60 - x   cheeky 

 Feb 5, 2020
 #1
avatar+21931 
+2
Best Answer

Total soln = 60ml    0f 5 %   

 

 

Volume of 3% = x      then the remainder,   60-x   is the 8% solution

      total of constituents = total of final solution

 

.03 x    +  .08 (60-x)   = .05 (60)        solve for x the amount of 3% needed.....then the amount of 5% needed is 60 - x   cheeky 

ElectricPavlov Feb 5, 2020

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