Question

1. suppose you want to make the lemonade sweeter. describe how you would change the concentration of the solution. what solute or solvent would you add? 3. sep plan an investigation. you want to find out the quickest way to dissolve salt in water by changing temperature, surface area of the solute, or agitating. plan an investigation that will help you determine how to increase the rate of dissolution.

Explanation:

2.

Step1: Increase solute amount

To make the lemonade sweeter (increase the concentration of the solution), you would add more sugar (solute). Sugar is what gives the sweet - taste in lemonade.

Step1: Prepare materials

Gather salt (solute), water (solvent), containers, a thermometer, a stirring rod, and stop - watch.

Step2: Set up control and variable experiments

Have multiple containers with the same amount of water. In one container (control), dissolve salt without changing any other factors. In other containers, change one variable at a time: increase the temperature of water in one, increase the surface area of salt (crush it) in another, and stir the solution in another.

Step3: Measure dissolution rate

Use a stop - watch to measure the time it takes for the salt to completely dissolve in each container. The faster the salt dissolves, the higher the dissolution rate. Analyze how each factor (temperature, surface area, agitation) affects the dissolution rate.

Answer:

You would add more sugar (solute) to make the lemonade sweeter.

3.