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Magnesium hydroxide is used in several antacid formulations. When it is added to water it dissociates into magnesium and hydroxide ions. Mg(OH) 2(s) ⇄ Mg2+(aq) + 2OH−(aq)
The equilibrium constant at 25°C is 8.9 × 10−12. One hundred grams of magnesium hydroxide is added to 1.00 L of water and equilibrium is established. What happens to the solution if another 10 grams of Mg(OH) 2 are now added to the mixture?
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