Hỗn hợp ethanol/methanol được đem đi chưng cất trong thiết bị dạng tháp với lưu lượng 100 kg/h và thành phần của ethanol chiếm 40 %. Sản phẩm đỉnh có thành phần methanol
là 90 % và 80 % methanol được thu hồi. Hãy xác định thành phần của methanol trong sản
phẩm đáy

Which statement describes both homogeneous mixtures and heterogeneous mixtures?

1. suppose a reaction mixture, when diluted with water, afforded 300 ml of an aqueous solution of 30 g of the reaction product malononitrile [ch2(cn)2], which is to be isolated by extraction with ether. the solubility of malononitrile in ether at room temperature is 20.0 g/100 ml, and in water is 13.3 g/100 ml. what weight of malononitrile would be recovered by extraction with (a) three 100-ml portions of ether and (b) one 300-ml portion of ether? suggestion: for each extraction, let x equal the weight extracted into the ether layer. in part (a), the concentration in the ether layer is x/100 and in the water layer is (30 x)/300; the ratio of these quantities is equal to k 20/13.3.

Can someone me with 6 to 10 plz this is for masteries test.