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Different Methods of Filtration | Difficult Meanings

Fluted Filter Paper The rate of filtration through the conicalتکون نما funnel can be considerablyمناسب increased using a Fluted Filter Paper. For the preparation of such a paper ordinaryعام filter paper is folded in such a way that a fan like an arrangement with alternateمتبادل elevationsاتار and depressionsنیچا at various folds is obtained.حاصل شدہ Filtration Through Filter Crucibles Another convenientآسان way to filter a precipitateرسوب is by suctionکھینچنا through a crucible. Two types of crucibles are generally used. Gooch Crucible It is made of porcelainایک قسم کا میٹیریل having a perforatedمسام دار bottom which is covered with paper pulp or a filter paper cut to its size. Quick filtration can be done by placing the Gooch crucible in a suction filtering apparatus. It is useful for the filtration of precipitates, which need to be ignitedبھڑکانا at high temperature. If its perforations are covered with asbestos mat then it may be used to filter solutions that react with paper e.g. ...
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Size and Mass of an atom

Here we discuss the size and mass of an atom. Size of atom: First, we discuss the size of an atom. It has been observed by the x-ray work in the 20th century,  that size of atoms is so small that it can be imagined by the following calculations. a) The diameter of the atom is of the is of the order 2 multiply 10 over raised power -10 m . in nanometers 0.2 nanometer. b) A man breathes approximately 10 power raised to 5 million atoms in a deep breath. c) If atoms are joined together in a line, two million atoms will be required to cover a full stop.    
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Can we see an atom

Can we see an atom It is not possible to see the atoms, but the nearest possibility is its direct evidence with the help of the following techniques: Electron Microscope: An ordinary optical microscope is used to see the object of the size up to 500 nm. This microscope uses visible light.  The electron microscope uses beams of electrons. So it can measure the object of size nearly to the size of an atom. It can measure the size of an object more than 15 million times. X-Ray X-Ray diffraction pattern obtained from diffractometer has made us able to believe the existence of the atom Further study: Click it Get True Knowledge
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