M&S Inv 3-4 Quiz Review

Which definition best matches the term "concentration" as it is used in the following sentence.

After comparing the weights of the four solutions the group had determined that solution 4 was the most concentrated.

• The solution with the lowest ratio of solute to solvent

• The mixture with the lowest ratio of solute to solvent

• The mixture with the highest ratio of solute to solvent

• The solution with the highest ratio of solute to solvent

Which definition best matches the term "dilute" as it is used in the following sentence.

After comparing the weights of the four solutions the group had determined that solution 2 was the most dilute.

• The solution with the lowest ratio of solute to solvent

• The mixture with the lowest ratio of solute to solvent

• The mixture with the highest ratio of solute to solvent

• The solution with the highest ratio of solute to solvent

Which one of the following statements is true?

• A dilute solution has a small amount of solute dissolved in a small amount of solvent.

• A concentrated solution has a large amount of solute dissolved in a large amount of solvent.

• A concentrated solution has a small amount of solute dissolved in a large amount of solvent.

• A dilute solution has a small amount of solute dissolved in a large amount of solvent.

Fill in the blanks:
A solution can be made more concentrated by adding more __________ or by removing some _________.

• suspension, solvent

• solute, solvent

• solvent, solute

• solute, suspension

When sugar is dissolved in water, sugar is known as....?

• The suspension

• The solute

• The solution

• The solvent

A lab called for the following citric acid solutions to be made.

Solution 1: 50 g citric acid and 100 mL water

Solution 2: 25 g citric acid and 100 mL water

Solution 3: 150 g citric acid and 100 mL water

Which choice below shows the correct ratio of solution 3.

• 50 : 100

• 150 : 100

• 100 : 150

• 25 : 100

You are making lemonade for you and your friends. You google "how to make great tasting lemonade?" and you get the following top search result. To make the best lemonade you need to have 35g of lemonade mix per every 200 mL of water.

Unfortunately, this will not make enough for you and all your friends. You guess you will need 1,000 mL to have enough for everyone. Which ratio below matches the desired amount based on the original recipe?

• 40 : 1,000

• 1,000 : 175

• 35 : 200

• 175 : 1,000

Based on the image, which solutions have the same concentration?

• Solutions 1 & 2

• Solutions 1 & 3

• Solutions 2 & 4

• Solutions 3 & 4

Epsom salts dissolves in water. People use a solution of Epsom salts and water to soak their sore feet. The Epsom salts is absorbed into the feet to soothe sore muscles. 100 g of Epsom salts was added to 1,000 mL of water to make a solution. How much Epsom salts would need to be added to 2,500 mL of water to make a solution of the same concentration?

• 100 g

• 200 g

• 250 g

• 300 g

A student makes a solution using 150 mL of water and 4 spoons of solid. One spoon of solid has a mass of 10 g. The student lets the solution sit until all the water evaporates. What is the mass after all the water has evaporated?

• 150 g

• 190 g

• 10 g

• 40 g