Answer-The concentrations of three acids, A, B, and C, are specified as 20%, 30%, and 40%, respectively. Th...

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Let the quantities of acids A, B, and C be 3, 5, and a units respectively. Total volume  35a8a. Total acid A 0.230.6 B 0.351.5 C 0.4a0.4a Total acid  0.61.50.4a2.10.4a Given final concentration is 30, so  2.10.4a8  a 0.3 Multiply both sides 2.10.4a  0.38a 2.40.3a 0.4a  0.3a  2.42.1 0.1a0.3 a3

The concentrations of three acids, A, B, and C, are specified as 20%, 30%, and 40%, respectively. They are blended in a ratio of 3 : 5 : a, yielding a solution with a concentration of 30%. What is the value of 'a'?

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