The equation is: anhydrous cobalt (II) chloride + water hydrated cobalt (II) chloride. AnhydrousHydratedcobalt (II) chloride+ Water->cobalt (II) chloride(Blue)(pink)CoCl2(s)+ 5H2O (l) ->CoCl2.5H2O(s)Burning a candle in airMost organic substances/. This test is usually done using cobalt chloride paper. You can use the papers to test for the presence of water, where the colour changes from blue to pink. The sample problem below demonstrates the procedure. Using cobalt (II) chloride: Cobalt (II) chloride turns blue to pink on the addition of water. This resource provides instructions for preparing your own cobalt chloride indicator papers. Le Chteliers Principle lab explores the reversible chemical reaction. It is useful to know the percent of water contained within a hydrate. The blue colour is the result of cobalt chloride complex ions (CoCl42) in less. The formula for water is set apart at the end of the formula with a dot, followed by a coefficient that represents the number of water molecules per formula unit. Question: The net ionic equation for the reaction of cobalt(II) chloride and potassium phosphate in an aqueous solution is O Co2+ (aq) + K+ (aq) + PO43- (aq.
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