메탄올의밀도는15도:0.79577,20도:0.7917입니다.18도라고했으므로,(0.79577-0.7917)*(3/5)=0.002442,여기서,0.79577-0.002442=0.793328이되겠습니다.(추정계산)
당신은 어느 그룹입니까?