Solubility of Copper II Phosphate

The video tutorial discusses the solubility of copper II phosphate (Cu3(PO4)2) in water, concluding that it is insoluble. It explains how to determine solubility using solubility rules and charts, highlighting that phosphates are generally insoluble except for a few exceptions, which do not include copper. The tutorial also suggests practical testing by adding copper II phosphate to water to observe its insolubility.

What is the solubility status of copper II phosphate in water?

• Soluble

• Insoluble

• Partially soluble

• Highly soluble

Which ion is primarily responsible for the insolubility of copper II phosphate?

• Cl-

• Cu2+

• PO4 3-

• Na+

According to solubility rules, which of the following is generally insoluble?

• Chlorides

• Phosphates

• Sulfates

• Nitrates

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

• Partially soluble

• Insoluble

• Soluble

• Highly soluble

How can the solubility of copper II phosphate be confirmed using a chart?

• By checking the solubility of Cu2+ with PO4 3-

• By looking for a 's' symbol

• By finding the solubility of Na+ with Cl-

• By checking the solubility of Cu2+ with Cl-

What happens when copper II phosphate is placed in water?

• It remains mostly undissolved

• It dissolves partially

• It dissolves completely

• It reacts violently

What is the significance of the small amount of copper II phosphate that dissolves in water?

• It indicates high solubility

• It suggests a chemical reaction

• It is negligible and considered insoluble

• It shows partial solubility