Solubility of Ammonium Phosphate

The video tutorial discusses whether ammonium phosphate (NH4)3PO4 is soluble in water. It confirms that it is soluble and explains three methods to determine this: memorizing solubility rules, using a solubility chart, and conducting a practical experiment. The video details how ammonium ions and phosphate ions dissociate in water, making the compound aqueous. Dr. B concludes by affirming the solubility of ammonium phosphate in water.

What is the solubility status of ammonium phosphate in water?

• Insoluble

• Soluble

• Partially soluble

• Depends on temperature

Which ion in ammonium phosphate makes it soluble according to solubility rules?

• Ammonium ion

• Sodium ion

• Chloride ion

• Phosphate ion

What is the purpose of a solubility chart?

• To calculate molecular weight

• To measure temperature

• To check the solubility of compounds

• To determine the pH level

What does the 'S' on a solubility chart indicate?

• Suspended

• Saturated

• Soluble

• Solid

What happens to ammonium phosphate when it dissolves in water?

• It forms a precipitate

• It dissociates into ions

• It remains unchanged

• It evaporates

How many ammonium ions are produced when ammonium phosphate dissociates?

• One

• Four

• Two

• Three

What is the practical method to confirm the solubility of ammonium phosphate?

• Mixing it with oil

• Dissolving it in water

• Freezing it

• Heating it

What conclusion can be drawn from the solubility test of ammonium phosphate?

• It reacts with water

• It is partially soluble

• It is soluble

• It is insoluble