Question

Suppose you have a mixture of solid KCl and MgCO3. The physical and chemical properties of KCl are similar to those of NaCl, and the properties of MgCO3 are similar to those of CaCO3. Provide a flowchart showing how you would separate and recover two components of the mixture.

Answer 1

To separate and recover the components of the mixture of solid KCl and MgCO3, you can use a series of chemical reactions.

Step-by-step explanation:

To separate and recover the components of the mixture of solid KCl and MgCO3, you can use a series of chemical reactions. Here is a flowchart showing the steps:

1. Add solid calcium hydroxide (Ca(OH)2) to the mixture. This will react with the dissolved KCl to form solid KCl and aqueous calcium hydroxide (Ca(OH)2).
2. Separate the solid KCl from the aqueous calcium hydroxide by filtration.
3. Add hydrochloric acid (HCl) to the solid MgCO3. This will react to form dissolved MgCl2 and liquid water.
4. Evaporate the liquid water to recover the solid MgCl2.
5. Melt the solid MgCl2 and electrolyze it to yield liquid magnesium (Mg) metal and diatomic chlorine (Cl2) gas.