The element cobalt can form compounds in two different oxidation states, +2 and +3.
The +2 state is more common.
The ion Co2+ (aq) is pink.
Other compounds of cobalt(II), which include both anhydrous Co2+ and complex ions, are commonly blue.
If an aqueous solution contains both cobalt(II) and chloride ions, the blue ion CoCl42- forms, in equilibrium with the pink Co2+ (aq) ion.
<span>CoCl42- (aq) <===========> Co2+ (aq) + 4Cl1-(aq)</span>
Explanation:
Sol. 450 ml there is LiCl 200 g
Sol. 1000 ml there is LiCl 200/450×1000
= 444.44 g
Molar = g/molar mass = 444.44/42.394 = 10.48 M
Under normal conditions, when salt is added to water THE SALT DISSOLVES IN THE WATER THEREBY INCREASING THE BOILING POINT OF THE WATER.
When salt is added to water, the sodium and the chlorine ions in the salt separate and attach themselves to water molecules, this leads to the dissolution of the salt. Dissolving salt in water automatically increase the temperature at which the water will boil; the temperature will be greater than 100 degree Celsius. <span />
Because energy need to be Times 4. Not sure if I helped you
