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After making an ester by heating a carboxylic acid with alcohol in the presence of concentrated sulfuric acid, water is added to the mixture and the ester seperates out as oily lay
Explain the Liquid Water aspect of using phase rule? For a single phase of pure water, P equals 1. If we treat the water as the single species H 2 O, s is 1 and r is 0. The pha
The frequency of strong yellow light in the spectrum of sodium is 5.09•10*14s calculated the wavelength of light
Q. What are Independent and dependent variables? An experiment is a set of controlled explanation that tests a hypothesis. In a research a scientist will set up and change on
The amount of energy released when one mole of bonds are formed among the corresponding gaseous atoms is known as Bond energy.
The structure of external most shell of inert gases is; (1) s 2 p 3 (2) s 2 p 6 (3) s 1 p 2 (4) d 10
diagram
Coordination number and geometry Binary compounds are ones with two different elements present. 'Simple' crystal structures can be classed as ones in which each atom (or
The electronic configuration of copper (29 cu) is: (1)1s 2 , 2s 2 , 2p 6 , 3s 2 , 3p 6 , 3d 9 , 4s 2 (2) 1s 2 , 2s 2 , 2p 6, 3s 2 , 3p 6 , 3d 10 , 4s 1 (3) 1s 2 , 2s
Q. What are Hexahalides? Hexahalides: S, Se-and Te react with excess of fluorine to give the corresponding hexafluorides. Fluorine being the most electronegative oxidises the
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