Solubility of Iron II Phosphate

The video tutorial explores the solubility of iron II phosphate (Fe3(PO4)2) in water, concluding that it is insoluble. The instructor explains this using solubility rules, a solubility chart, and practical observation. Most phosphates are insoluble, with few exceptions, and iron II phosphate is not one of them. The solubility chart confirms this, showing that iron II phosphate does not dissolve in water, although a minimal amount may dissolve. The video concludes with a practical suggestion to observe the solubility by adding iron II phosphate to water.

What is the solubility status of Iron II Phosphate in water?

• Soluble

• Partially soluble

• Highly soluble

• Insoluble

According to solubility rules, which of the following is true about phosphates?

• Phosphates dissolve in all conditions

• All phosphates are soluble

• Most phosphates are insoluble

• Phosphates are always exceptions

Why is Iron II Phosphate considered insoluble according to solubility rules?

• It does not fall under any exceptions

• It dissolves completely

• It reacts with water

• It is an exception to the rules

What does the 'I' in the solubility chart indicate for Iron II Phosphate?

• Iron II Phosphate is highly reactive

• Iron II Phosphate is partially soluble

• Iron II Phosphate is insoluble

• Iron II Phosphate is soluble

How does Iron II Phosphate behave when placed in water according to the solubility chart?

• It floats on the surface

• It reacts violently

• It sinks to the bottom

• It dissolves completely

What is the significance of a small amount of Iron II Phosphate dissolving in water?

• It indicates a chemical reaction

• It is still considered insoluble

• It makes it soluble

• It changes the water color

What practical method can be used to test the solubility of Iron II Phosphate?

• Heating it

• Mixing it with acid

• Placing it in water

• Exposing it to sunlight

What would you expect to observe if you placed Iron II Phosphate in water?

• It sinks to the bottom

• It dissolves completely

• It floats on the surface

• It remains unchanged