Solubility of Phosphates and Barium

The video explores the solubility of barium phosphate (Ba3(PO4)2) in water, concluding that it is insoluble. The presenter explains the use of solubility rules and charts to determine solubility, noting that most phosphates are insoluble except for those with Group 1 elements or ammonium ions. The video demonstrates how to use a solubility chart to confirm that barium phosphate is indeed insoluble.

What is the solubility status of barium phosphate in water?

• Insoluble

• Soluble

• Partially soluble

• Highly soluble

Which ion is associated with phosphates in the solubility rules?

• PO4 2-

• PO3 3-

• PO4 3-

• PO3 4-

According to solubility rules, which group of elements can form soluble phosphates?

• Noble gases

• Group 1 elements

• Group 2 elements

• Transition metals

What is the role of the ammonium ion in phosphate solubility?

• It makes phosphates insoluble

• It reacts with phosphates to form a gas

• It has no effect on solubility

• It makes phosphates soluble

What does the solubility chart confirm about barium phosphate?

• It reacts with water

• It is partially soluble in water

• It is insoluble in water

• It is soluble in water

Where can you find barium on the solubility chart?

• In the alkaline earth metals section

• In the alkali metals section

• In the halogens section

• In the transition metals section

What is the final conclusion about barium phosphate's solubility?

• It is insoluble

• It is volatile

• It is reactive

• It is soluble