Solubility and Solution Concepts

The video tutorial guides chemistry students through an online virtual solubility lab. It covers key concepts such as solubility, solvents, and solutes, and explains how temperature affects solubility. Students are instructed to form a hypothesis, conduct experiments by adding solutes to solvents, and record data. The tutorial emphasizes the importance of understanding saturated and unsaturated solutions and provides detailed steps for conducting the experiment and analyzing results.

What is the substance called that is being dissolved in a solution?

• Solvent

• Solution

• Solute

• Compound

What generally happens to the solubility of a solid when the temperature of the solvent increases?

• It evaporates

• It increases

• It remains the same

• It decreases

What is a saturated solution?

• A solution that has dissolved all the solute it can hold at a given temperature

• A solution that can dissolve more solute

• A solution with no solute

• A solution that evaporates quickly

What is the first step in the virtual lab procedure?

• Add solute to the solvent

• Graph the results

• Make a hypothesis about temperature and saturation

• Test the solubility of a compound

How do you know when a solution has reached saturation in the virtual lab?

• The solute dissolves completely

• The solution changes color

• The temperature of the solution increases

• Undissolved compound appears at the bottom

What should you do if you add too much solute and the solution becomes oversaturated?

• Add more solvent

• Stir the solution

• Remove the last spoonful of solute

• Increase the temperature

At what temperature was ammonium chloride found to be saturated with 31 grams?

• 20 degrees Celsius

• 100 degrees Celsius

• 60 degrees Celsius

• 0 degrees Celsius

What is the final step after completing the solubility tests in the virtual lab?

• Write a report

• Graph the results and analyze data

• Clean the lab equipment

• Submit the lab results

Why is it important to use different colors when graphing the results?

• To easily track different compounds

• To make the graph look attractive

• To highlight the most soluble compound

• To differentiate between temperatures

What should you do after graphing your results?

• Submit the graph

• Answer questions using the graph

• Discuss with classmates

• Repeat the experiment