Dilution is the process of reducing the concentration of a solute in a solution, usually by adding more solvent. The key principle behind dilution calculations is that the number of moles of solute remains constant. We use the formula $M_1V_1 = M_2V_2$, where $M_1$ and $V_1$ represent the initial molarity and volume, and $M_2$ and $V_2$ represent the final molarity and volume after dilution. Make sure your volume units are consistent!
Remember that dilution simply spreads the solute molecules further apart without changing the total number of solute molecules present. This concept is fundamental to many lab procedures in chemistry and biology.
Match the term with its definition:
| Term | Definition |
|---|---|
| 1. Solute | A. The substance in which a solute dissolves |
| 2. Solvent | B. A solution with a relatively low concentration of solute |
| 3. Solution | C. The substance that dissolves in a solvent |
| 4. Concentrated Solution | D. A homogeneous mixture of solute and solvent |
| 5. Dilute Solution | E. A solution with a relatively high concentration of solute |
Match the correct terms with their definitions:
Complete the following paragraph using the words: moles, molarity, volume, dilution, constant.
________ is the process of reducing the concentration of a solution by adding more solvent. During a ________, the number of ________ of solute remains ________. The formula $M_1V_1 = M_2V_2$ relates initial and final ________ and ________.
Why is it important to use volumetric glassware when preparing solutions for quantitative analysis, especially when performing dilutions? Explain the potential impact of using non-volumetric glassware on the accuracy of your results.
Please log in to post your answer.
Log InEarn 2 Points for answering. If your answer is selected as the best, you'll get +20 Points! 🚀