Click to Chat
1800-1023-196
+91-120-4616500
CART 0
Use Coupon: CART20 and get 20% off on all online Study Material
Welcome User
OR
LOGIN
Complete Your Registration (Step 2 of 2 )
Why do solubility of hydroxides of second group elements increase down the group?
When we look at factors solubility of elements there are two factors they depend on, namely: Lattice energyEnthalpy of hydration So, in group II as we go down the elements have higher ionic radius and meaning high charge density. Greater charge density meaning the cation is easily able to hydrate and dissolve in water due to greater attraction with polar water molecules. (The higher charge density also means the more exothermic the hydration enthalpy) Example: Magnesium requires steam to react vigorously as it will react very slowly with cold water. It will form its oxide and hydrogen. Strontium and Barium are more reactive than Calcium. Thanks & Regards, Vasantha Sivaraj, askIITians faculty
When we look at factors solubility of elements there are two factors they depend on, namely:
So, in group II as we go down the elements have higher ionic radius and meaning high charge density. Greater charge density meaning the cation is easily able to hydrate and dissolve in water due to greater attraction with polar water molecules. (The higher charge density also means the more exothermic the hydration enthalpy)
Example: Magnesium requires steam to react vigorously as it will react very slowly with cold water. It will form its oxide and hydrogen. Strontium and Barium are more reactive than Calcium.
Thanks & Regards,
Vasantha Sivaraj,
askIITians faculty
Find solution of question on doubt solving app Instasolv
Post Question
Dear , Preparing for entrance exams? Register yourself for the free demo class from askiitians.
points won -