Metal Aqua Ions Flashcards
1
Q
Why do solutions of M2+ and M3+ aqua ions form acidic solutions?
A
Metal aqua ions react with water, losing a proton to the water molecule forming H3O+ ions causing acidity
2
Q
Why is the acidity of [Fe(H2O)6]3+ greater than the acidity of [Fe(H2O)6]2+?
A
The concentration of H3O+ ions is more in Fe3+ aqua ions because Fe3+ has a higher net charger and a smaller ionic radius which increases the polarisation of OH bonds which weakens them
