Solubility of Carbonates in Water

The video explores whether copper carbonate (CuCO3) is soluble in water, concluding that it is insoluble. It discusses methods to determine solubility, including memorizing solubility rules, using a solubility chart, and conducting a practical experiment. The video explains that most carbonates are insoluble, with exceptions for Group 1 elements and ammonium ions. It demonstrates using a solubility chart to confirm copper carbonate's insolubility and notes that while a small amount may dissolve, it is negligible. The video concludes with a practical suggestion to test solubility by observation.

What is the solubility status of copper carbonate in water?

• Insoluble

• Soluble

• Partially soluble

• Highly soluble

Which ion is primarily responsible for the insolubility of most carbonates?

• Sulfate ion

• Nitrate ion

• Chloride ion

• Carbonate ion

Which group on the periodic table contains exceptions to the insolubility of carbonates?

• Group 1

• Group 4

• Group 2

• Group 3

What charge does the carbonate ion carry?

• 2+

• 1+

• 2-

• 1-

In a solubility chart, where are the positive ions typically located?

• On the right

• On the bottom

• On the left

• On the top

What is the charge of copper in copper(II) carbonate?

• 1+

• 2+

• 3+

• 4+

What is the significance of the 'i' in the solubility chart for copper carbonate?

• Indicates it is soluble

• Indicates it is insoluble

• Indicates it is volatile

• Indicates it is reactive

What happens to copper carbonate when placed in water?

• It dissolves completely

• It forms a precipitate

• It sinks to the bottom

• It reacts with water

What is the expected behavior of copper carbonate in water based on solubility rules?

• It should react with water

• It should evaporate

• It should remain insoluble

• It should dissolve

What is a practical method to test the solubility of a compound?

• Using a magnet

• Mixing with acid

• Observing it in water

• Heating the compound