glass jar

Spinach leaves, pestle and mortar, 80% acetone, calcium carbonate, Buchner funnel, beaker, measuring cylinder, glass jar with a tight cork. Whatmann No.1, filter paper, petroleum ether, acetone, hook, micropipett..

Electric bell suspended inside an airtight glass bell jar An electric bell is suspended inside an airtight glass bell jar connected with a vacuum pump. As the electric bell circuit is completed, the sound is heard. Now if the air is slowly removed from th..

Take 50 g of fresh spinach laves in a pestle and mortar. Crush them with 20 ml of 80% acetone. Add a pinch of calcium carbonate and again crush. Filter the extract on a Buchner filter. The deep green coloured filtrate containing chlorophylls and carotenoids is obtained. Evaporate the extract to co..

Take a bell jar. Towards its rounded end, fix a 'Y' shaped glass tube and on the open ends of the two branches tie a balloon each. On its open end tie a thin rubber sheet. The cavity of the bell jar acts as the thoracic cavity, the "Y" shaped tube as the trachea that ..

Take a bell jar. Towards its rounded end, fix a 'Y' shaped glass tube and on the open ends of the two branches tie a balloon each. On its open end tie a thin rubber sheet. The cavity of the bell jar acts as the thoracic cavity, the "Y" shaped tube as the trachea that ..

A liquid (water), having boiling point about 20 to 30C higher than that of the given liquid (whose molecular mass is to be determined) is poured into the outer jacket so as to fill its bulb up to one-third its capacity. Cleaned and dried Victor Meyer's tube is suspended into the outer copper jacke..