The alkaline pH of Ca(OH)2 suspensions is greater than what value?

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Multiple Choice

The alkaline pH of Ca(OH)2 suspensions is greater than what value?

Explanation:
Calcium hydroxide acts as a strong base, releasing hydroxide ions when it dissolves in water. That abundance of OH− drives the pH well into the basic (alkaline) range. In an aqueous Ca(OH)2 suspension, the pH is typically about 12 to 12.5 at room temperature, which means it is clearly greater than 12. While the pH scale can approach 14 for very concentrated bases, the solubility and buffering limits of Ca(OH)2 in water keep its suspension from reaching that level. So the value it surpasses is 12.

Calcium hydroxide acts as a strong base, releasing hydroxide ions when it dissolves in water. That abundance of OH− drives the pH well into the basic (alkaline) range. In an aqueous Ca(OH)2 suspension, the pH is typically about 12 to 12.5 at room temperature, which means it is clearly greater than 12. While the pH scale can approach 14 for very concentrated bases, the solubility and buffering limits of Ca(OH)2 in water keep its suspension from reaching that level. So the value it surpasses is 12.

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