Question

Solutions, Acids, and Bases Online Practice
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Question
In a solution, which pair of actions could combine to keep a concentration constant?(1 point)
Responses

adding water, then removing solution
adding water, then removing solution

adding solute, then removing solution
adding solute, then removing solution

adding solute, then evaporating water
adding solute, then evaporating water

adding water, then adding solute

Answer 1

wrong it was "adding water, then adding solute"

Answer 2

To keep the concentration of a solution constant, you need to balance the changes in volume or amount of solute.

The best option among the provided responses is:

**adding solute, then removing solution**

This action adds more solute to the solution while simultaneously reducing the volume of the solution itself, helping to maintain a constant concentration.

The other options either dilute the solution or change the concentration.

Answer 3

I apologize for the confusion. Let's clarify:

- **Adding water, then adding solute** can indeed maintain the same concentration depending on the amounts added. If you add equal proportions of solute and solvent, the overall concentration can remain consistent.

Thank you for the correction! If you have more questions or need further clarification on this topic or any others, feel free to ask!