Powered by Blogger.

Breaking News

Formulir Kontak



Showing posts with label chemistry. Show all posts
Showing posts with label chemistry. Show all posts

12/18/16

#9 Qualitative and Quantitative Analysis.


◇Qualitative Analysis:- It reveals the identity of elements and Compounds in a Sample such As Salt analysis. For this purpose low accuracy is required. ◇Quantitative Analysis:- It indicates the amount of each substance in sample. E.g In NaCl 'one mole of NaCl contains 1 mole of Na and 1 mole Of Cl.For this purpose High accuracy is requied.  ●Qualitative Analysis is Always Done Before...

12/15/16

#8 Capillary Action


The rise or fall Of a liquid in a capillary tube is related to the surface tension of a liquid whether a liquid rise in a capillary like water or depressed like mercury. It depends on the relative magnitude of cohesive and adhesive forces.These forces determine the contact angle which the liquid make with the walls Of the tube. If the contact angle is less than 90° it is said to wet surface and...