Question

what is the solubility order of CaF2 SrF2 BaF2 BeF2 MgF2
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Answer 1

Answer:

Explanation:

Order of solubility MgF2 < CaF2 < SrF2 < BeF2

BeF2 has highest solubility as Be+2 have high hydration energy

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Answer 2

correct order is

BeF2 < MgF2< CaF2<SrF2<BaF2 I have seen 100% telling copy paste answer MgF2<CaF<SrF2<BeF2 this nonsense order is comming from Topper website ‍♂️now I will take my opinion here as per many websites I read In the case of small anions such as F- and OH-, the lattice energy dominates with small cations example Li+,Be²+,Mg2+,Na+ note in most of case you have to mismatch the size of cation and anion more the size mismatch more will be solubility in the question the lattice energy order is BeF2 >MgF2> CaF2>SrF2>BaF2 so solubility order will be reversed one more thing we know decrease in the size of cation is more will hydration energy and more will solubility yes this is true but it's better applicable with large or moderate size anion in case of small anion apply above rule