ethanol major y minor y concentration radius error radius error wt% angstrom angstrom 0 -- -- 10 50.65794 1 14.15083 1 20 50.77002 1 14.29224 1 30 51.71614 1 15.03056 1 40 55.04506 1 16.85496 1 50 65.01605 1 20.30309 1 60 87.10769 1 26.61565 1