BRAINCAKETrends in Solubility of the Hydroxides
Magnesium hydroxide has very low solubility in water.
Calcium hydroxide is only slightly soluble in water. The product is called limewater and is used as a test for carbon dioxide.
The solubility of group 2 hydroxides increases down the group.
Magnesium hydroxide is only slightly soluble in water with a pH of about 10. Barium hydroxide is much more soluble with a pH of about 13.
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More in Group 2
- Reactions with Chlorine
- Reactions with Water
- Magnesium and Steam
- Reactions of Oxides with Water
- Uses of the Hydroxides
- Reactions of the Oxides and Hydroxides with Acids
- Trend in Solubility of Sulfates
- Thermal Stability of Nitrates
All 16 lessons in Group 2 · All Edexcel AS-level Chemistry topics