Dissolution of Ionic Compounds (HSC SSCE Chemistry): Quizzes
📚Quizzes
Practise the questions
10 questions from this quiz
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Practise the questions
10 questions from this quiz
What charge does the oxygen atom carry in a water molecule?
What charge does the oxygen atom carry in a water molecule?
Partial negative charge ()
What is the substance that does the dissolving called?
What is the substance that does the dissolving called?
Solvent
What type of bonds form between ions and water molecules during dissolution?
What type of bonds form between ions and water molecules during dissolution?
Ion-dipole bonds
How do water molecules orient around anions during hydration?
How do water molecules orient around anions during hydration?
Hydrogen atoms pointing toward anion
What is a hydrated cation sometimes called?
What is a hydrated cation sometimes called?
Aquo-cation
For an ionic compound to dissolve, what must be true about energy changes?
For an ionic compound to dissolve, what must be true about energy changes?
Hydration energy > lattice energy
What is the energy required to separate ions from the crystal lattice called?
What is the energy required to separate ions from the crystal lattice called?
Lattice energy
How does smaller ion size affect lattice energy?
How does smaller ion size affect lattice energy?
Creates stronger bonds, higher energy
Why do smaller ions release more hydration energy?
Why do smaller ions release more hydration energy?
Higher charge density attracts water
How does higher temperature affect dissolution of most ionic compounds?
How does higher temperature affect dissolution of most ionic compounds?
Increases rate and solubility