Solubility of Calcium Hydroxide

The video explores whether calcium hydroxide (Ca(OH)2) is soluble in water. It is slightly soluble, meaning some of it dissolves, but not much. The solubility can be determined using solubility rules, charts, or practical experimentation. Calcium hydroxide dissociates into calcium ions and hydroxide ions in water, forming lime water. The video concludes that Ca(OH)2 is slightly soluble.

What is the solubility status of calcium hydroxide in water?

• Slightly soluble

• Insoluble

• Highly soluble

• Completely insoluble

According to solubility rules, how do most metal hydroxides behave in water?

• Completely insoluble

• Highly soluble

• Slightly soluble

• Insoluble

Which of the following is NOT an exception to the solubility rule for hydroxides?

• Sodium

• Potassium

• Calcium

• Ammonium

What does the 'ss' symbol indicate on a solubility chart?

• Completely soluble

• Insoluble

• Highly soluble

• Slightly soluble

In a solubility chart, where are the positive ions located?

• At the bottom

• On the right

• On the left

• At the top

When calcium hydroxide dissolves in water, what ions are formed?

• Ca2+ and OH-

• Ca+ and OH-

• Ca+ and O2-

• Ca2+ and H+

How many hydroxide ions are produced for each calcium ion when calcium hydroxide dissociates?

• One

• Three

• Two

• Four

What is the common name for the solution formed when calcium hydroxide is dissolved in water?

• Mineral water

• Lime water

• Salt water

• Sugar water

What is a practical method to determine the solubility of calcium hydroxide?

• Heating it

• Mixing it with oil

• Stirring it in water

• Freezing it

What is the solubility status of calcium hydroxide when observed practically?

• Highly soluble

• Slightly soluble

• Completely insoluble

• Insoluble