A dilute solution has a concentration of 5%. How many grams of solute are there in 200 mL of this solution?

A dilute solution has a concentration of 5%. How many grams of solute are there in 200 mL of this solution?

• A. 5 grams
• B. 10 grams
• C. 15 grams
• D. 20 grams

Answer: (B)

To determine the amount of solute in a dilute solution, you can use the formula that connects concentration, volume, and mass. In this case, a 5% concentration means there are 5 grams of solute in every 100 mL of solution. First, find out how many grams of solute are in 200 mL. Since 200 mL is double the amount of 100 mL, you can multiply the amount of solute in 100 mL by 2. Therefore: 5 grams (in 100 mL) x 2 (for 200 mL) = 10 grams of solute. This calculation shows that in 200 mL of a 5% solution, there are 10 grams of solute. Hence, the correct answer reflects the accurate relationship between the concentration of the solution and the volume, leading to the conclusion that there are 10 grams of solute in the specified volume.

To determine the amount of solute in a dilute solution, you can use the formula that connects concentration, volume, and mass. In this case, a 5% concentration means there are 5 grams of solute in every 100 mL of solution.

First, find out how many grams of solute are in 200 mL. Since 200 mL is double the amount of 100 mL, you can multiply the amount of solute in 100 mL by 2. Therefore:

5 grams (in 100 mL) x 2 (for 200 mL) = 10 grams of solute.

This calculation shows that in 200 mL of a 5% solution, there are 10 grams of solute. Hence, the correct answer reflects the accurate relationship between the concentration of the solution and the volume, leading to the conclusion that there are 10 grams of solute in the specified volume.