Sodium Acetate Solution Concepts

The video tutorial demonstrates the properties and behavior of sodium acetate in water. It explains how sodium acetate's solubility increases with heat and how it can be crystallized by cooling. The tutorial provides step-by-step instructions for preparing a sodium acetate solution, cooling it, and triggering crystallization. It also covers how to reuse the solution by reheating and adding more sodium acetate.

What happens to the water when a pinch of salt is added?

• It remains the same.

• It evaporates.

• It becomes a slush.

• It turns into ice.

What is the solution formed when sodium acetate is dissolved in water?

• A solution of sodium acetate

• A solution of sodium chloride

• A mixture of water and salt

• A mixture of water and sugar

How does the solubility of sodium acetate change with temperature?

• It decreases with temperature.

• It fluctuates with temperature.

• It remains the same.

• It increases with temperature.

What triggers the crystallization of sodium acetate in the solution?

• Stirring the solution

• Adding a small amount of solid sodium acetate

• Heating the solution

• Adding more water

What is the first step in preparing the sodium acetate solution?

• Heating sodium acetate directly

• Mixing sodium acetate with hot water

• Cooling sodium acetate

• Mixing sodium acetate with cold water

Why is it recommended to use a water bath instead of a microwave for dissolving sodium acetate?

• Microwaves are too expensive.

• Microwaves are too slow.

• Microwaves can cause uneven heating.

• Water baths are more convenient.

What should be done after the sodium acetate is completely dissolved?

• Shake the solution vigorously

• Add more sodium acetate

• Let it cool in a stable place

• Immediately use the solution

How long should the solution be left to cool?

• 30 minutes

• 2 hours

• 1 hour

• Overnight

What should be avoided to prevent premature crystallization?

• Keeping the solution in a stable place

• Adding more water

• Contaminating the solution

• Using a water bath

How can the sodium acetate solution be reused?

• By adding more sodium acetate

• By stirring it continuously

• By reheating and adding a pinch of solid sodium acetate

• By cooling it again