What is the percentage of water in #CoCl_2 * 6H_2O#?

1 Answer
anor277
Jun 5, 2016

#"%Water = " "Mass of water"/"Molar mass of cobaltous chloride hexahydrate"xx100%#

Explanation:

So, #(6xx18.01*g*mol^-1)/(237.93*g*mol^-1)xx100%~=50%#

The hexahydrate has a beautiful purple colour. The anhydrous salt, #CoCl_2#, has an equally beautiful blue colour.

Related questions
See all questions in Ionic Compounds
Impact of this question
1673 views around the world
You can reuse this answer
Creative Commons License