1The group 2 ions have more hydration energy than gruop 1 ions (may be 5 times).This is due to smaller size. So Ca+2 more hydrated than Na+1.
1. The ionic radii of Ca2+ and Na+ ions are about the same yet calcium ions are more hydrated than sodium ions. Suggest an explanation for this.
-
UP 0 DOWN 0 0 7
7 Answers
1
1hydration energy of Na+ is - 435 KJ mol-1 while that of Ca +2 is - 1577 KJ /mol. so calcium ions are more hydrated than sodium ions [1]
3CALCULATE E/Z FOR THE TWO......AND SMALLER ONE HAS LOWER VALUE FOR E/Z ...SO IT IS MORE EASILY HYDRATED
3@MANMAY HERE REASON IS ASKED....IT IS ALREADY KNOWN THAT calcium ions are more hydrated than sodium ions
29Ca2+ has more charge density than Na+ ..that's the reason why calcium ions are more hydrated than sodium ions....
1if u c thru z/e ratio then more is itzz value so less is the size........since size is less so d ion has higher charge density n its attraction force gets comparitively higher than larger size atoms so all together it aatracts more H2O molecules forming BIGGER HYDRATED SIZE.........
1ya agree with govind..
both size and the charge has to be considered.