Solubility of Copper(II) Fluoride

The video explores the solubility of copper(II) fluoride (CuF2) in water. It begins by examining the limitations of standard solubility rules, which do not list fluoride or copper. The video then demonstrates how to use a solubility table to determine that CuF2 is slightly soluble, meaning only a small amount will dissolve in water. The video concludes by noting that other fluorides, such as strontium, barium, zinc, and lead fluorides, also exhibit slight solubility.

What is the main challenge in determining the solubility of copper(II) fluoride using solubility rules?

• Fluoride and copper are not listed in the solubility rules.

• Copper(II) fluoride is highly soluble.

• Solubility rules are only for organic compounds.

• Copper(II) fluoride is a gas.

Which tool is suggested to determine the solubility of copper(II) fluoride?

• Solubility table

• Periodic table

• Chemical equation

• Molecular model

What is the charge on the copper ion in copper(II) fluoride?

• Cu4+

• Cu3+

• Cu2+

• Cu+

What does the solubility table indicate about copper(II) fluoride?

• It is slightly soluble.

• It is insoluble.

• It is a gas.

• It is highly soluble.

Which of the following is NOT mentioned as a slightly soluble fluoride?

• Strontium fluoride

• Sodium fluoride

• Barium fluoride

• Zinc fluoride

Why is it important to refer to a solubility table for copper(II) fluoride?

• To find its melting point

• To calculate its molecular weight

• To identify its color

• To determine its solubility in water