A student left some crushed fruit mixture with water for some days. He found the mixture had fermented. He concluded that the mixture was contaminated with water and ethanol with boiling point of 100oC and 78oC respectively. The set-up of apparatus below are used to separate the mixture. (i) Name the piece of apparatus labelled W (1mk) condenser……………………………………………………………………………………………………... (ii) What is the purpose of the thermometer in the set-up? (1mk) ……………………………………………………………………………………………………………… iii) At which end of the apparatus W should tap water be connected? (1mk) ……………………………………………………………………………………………………………… (iv) Which liquid was collected as the first distillate? Explain (2mks) ……………………………………………………………………………………………………………… (v) What is the name given to the above method of separating mixture? (1mk) fractional distillation ………………………………………………………………………………………………………………. (vi) State two applications of the above method of separating mixtures (2mks) …………………………………………………………………………………………………………….... (vi) What properties of the mixture makes it possible for the component to be separated by the above methods? (1mk)
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