A solution is 5.5% (w/v) ethanol (C2H5OH, MW 46.07 g/mol). What is the molar concentration of ethanol in this solution?
2 answers
w/v of what solvent ( perhaps water).What is the density of the solution?
DrBob, Correct me please, but wouldn't 5.5% w/v => 5.5-g EtOH/100-ml soln (assuming water solvent)? => (5.5-g/46.07-g/mol) / (0.100-L) = 1.2M in EtOH (2 sig. figs.)