Solubility of Hydroxides and Ions

The video explores the solubility of chromium-3 hydroxide in water, concluding it is insoluble. It reviews solubility rules, noting that most hydroxide salts are slightly soluble except for certain group 1 elements and ammonium ions. Chromium-3 hydroxide is not an exception, thus considered insoluble. Experimental data confirms this finding, aligning with the solubility rules discussed.

What is the solubility status of chromium-3 hydroxide in water?

• Insoluble

• Soluble

• Highly soluble

• Partially soluble

Which group of elements is generally very soluble in water?

• Noble gases

• Group 2 elements

• Transition metals

• Group 1 elements

What is the solubility status of most hydroxide salts?

• Insoluble

• Highly soluble

• Slightly soluble

• Completely insoluble

Which ion is mentioned as being very soluble in water?

• Ammonium ion

• Nitrate ion

• Carbonate ion

• Sulfate ion

What does the experimental data confirm about chromium-3 hydroxide?

• It is insoluble

• It is reactive with water

• It is highly soluble

• It is slightly soluble