AlanB.519691

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Using a double equation system;Let x be the 10% soln,so y is the 50% soln Vol.Eqn1: x+y = 10L, then Volx[conc]Eqn2:0.1x+0.5y= 0.35(10) Eqn2-(Eqn1x0.5) gives xL Therefore: 0.1x + 0.5y = 3.5 -0.5x + 0.5y = 5.0 -0.4x =-1.5 x = 1.5/0.4L= 3.75L Therefore y is...