Question

to compound 50% solution in which proportion must 95% sol and 30% sol be mixed to make
500 ml

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Answer 1

we use the rectangle rule

95-50=45 parts of 95% solution

50-30=20 parts of 30% solution

45x+20x=500

65x=500

x=500/65

x=7.69

45x=346.15ml of 95% solution

20x=153.84ml of 30% solution

69.23% of 95% solution

and 30.77% of 30% solution