What is the molar solubility of Mg(OH)2 in a basic solution with a pH of 12.00? Ksp for Mg(OH)2 is 5.6 × 10-12.
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Question “What is the molar solubility of Mg(OH)2 in a basic solution with a pH of 12.00? Ksp for Mg(OH)2 is 5.6 × 10-12.”
pH of 12.00? Ksp for
Mg(OH)2 is 5.6 × 10-12.
Answer
Molar solubility refers to the amount of compound or substance that can be dissolved in a liter of solution. It is dependent on the stoichiometry and can be found by the solubility products constant. The pH value is the concentration of hydrogen ions in a solution. It indicates whether the solution is acidic or basic. Solution with a high concentration of hydrogenions will have a lower pH value, while solutions with fewer hydrogen ions will have a higher pH value. Solutions with high pH values are more acidic.
Solubility product constant and molar solubility are calculated using the concentration of a compound reaction.
We can now find x, which is the molar solubility for that compound.
and _media_tag_4$
pH = 12
pOH = 14-12 = 2.
So,
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Initial | – | 0 | 0.01 M | |
Change | – | x | 2x+0.01M | |
At equilibrium | – | x | 2x+0.01M |
Expression of a Solubility Product:
Ans:
=
Conclusion
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