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How Much 0.075 M NaCl Solution Can Be Made by Diluting 450 mL of 9.0 M NaCl?

Introduction:

Solutions play a crucial role in various scientific and everyday applications. One common task is to dilute a concentrated solution to a desired concentration. In this article, we will explore how much 0.075 M NaCl solution can be made by diluting 450 mL of 9.0 M NaCl. We will also provide a step-by-step guide to calculate the volume and discuss the importance of understanding solution dilution.

Calculating the Volume of 0.075 M NaCl Solution:

To calculate the volume of 0.075 M NaCl solution that can be made, we need to apply the dilution formula:

C1V1 = C2V2

Where C1 and V1 are the initial concentration and volume of the solution, and C2 and V2 are the final concentration and volume after dilution.

Given:

C1 = 9.0 M (initial concentration)

V1 = 450 mL (initial volume)

C2 = 0.075 M (final concentration)

Let’s substitute the values into the formula and solve for V2:

(9.0 M)(450 mL) = (0.075 M)(V2)

V2 = (9.0 M)(450 mL) / (0.075 M)

V2 = 6000 mL

Therefore, by diluting 450 mL of 9.0 M NaCl solution, we can obtain 6000 mL (or 6.0 L) of 0.075 M NaCl solution.

Step-by-Step Guide for Dilution:

1. Gather the necessary materials: a concentrated NaCl solution (9.0 M), a volumetric flask or container, a pipette or graduated cylinder for accurate measurements, and distilled water.

2. Start by measuring 450 mL of the 9.0 M NaCl solution using a pipette or graduated cylinder.

3. Transfer the measured solution into a clean and dry volumetric flask or container.

4. Slowly add distilled water to the flask while gently swirling until the total volume reaches 6000 mL (6.0 L).

5. Ensure proper mixing of the solution by inverting the flask several times.

6. The resulting solution will be a 0.075 M NaCl solution, ready for use in various applications.

FAQs:

Q: What is the significance of dilution in solution preparations?

A: Dilution allows us to control the concentration of a solution according to our needs. It is particularly useful when working with highly concentrated solutions that may be too strong for certain experiments or applications. Dilution helps create solutions with desired concentrations, making them safer and more suitable for a wide range of purposes.

Q: Can any solvent be used for dilution?

A: No, not all solvents are suitable for dilution. It is essential to choose a solvent that is miscible with the solute and does not react chemically with it. In the case of NaCl, distilled water is commonly used as it is a safe and compatible solvent.

Q: What precautions should be taken during the dilution process?

A: It is essential to handle concentrated solutions with care, as they can be harmful. Always wear appropriate protective equipment, such as gloves and safety glasses, when working with chemicals. Additionally, ensure accurate measurement of volumes using calibrated instruments to obtain precise dilutions.

Q: Can the dilution be reversed if the desired concentration is not achieved?

A: Yes, it is possible to adjust the concentration by further diluting or concentrating the solution. To increase the concentration, additional solute can be added to the solution, or the solution can be evaporated to remove the solvent. Conversely, to decrease the concentration, more solvent can be added.

Conclusion:

Dilution is a fundamental process in solution preparations. By diluting 450 mL of 9.0 M NaCl solution, we can create 6000 mL (or 6.0 L) of 0.075 M NaCl solution. This article has provided a step-by-step guide to calculate the volume and emphasized the importance of understanding solution dilution. Dilution allows us to tailor the concentration of solutions to meet specific requirements in various scientific and everyday applications.

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