Question

a solution of water alcohol contains 30 gram of water 60 gram of alcohol what is a concentration of solution​

Answer 1

Concentration = Wt.(solute) / Wt.(solution)

Wt.(solute) = 60 gms

Wt.(solution) = 30 + 60 = 90 gms

therefore Conc. = 60/90 = 2/3 = 66.66%