Question 686511
What quantity of pure acid must be added to 600mL of 30% acid solution to produce a 65% acid solution?
x = amount of 100% acid
0.3*600 + 1.0*x = 0.65*(600 + x)
------

 So far I have tried 
0.30(600)=.65(600+x) 
However it doesn't seem to get me the right answer