How to Prepare a 10% Sodium Chloride (NaCl) Solution
Preparing a 10% sodium chloride (NaCl) solution is a common task in various scientific and industrial applications. This solution is widely used in medical settings, laboratories, and even in household cleaning products. A 10% NaCl solution consists of 10 grams of sodium chloride dissolved in 100 milliliters of water. In this article, we will guide you through the steps to prepare a 10% NaCl solution accurately and safely.
Materials Needed
Before you start, gather the following materials:
– Sodium chloride (NaCl) powder
– Distilled water
– Measuring scale or balance
– Measuring cylinder or graduated cylinder
– Beaker or flask
– Stirring rod or spoon
– Safety goggles and gloves (optional but recommended)
Step 1: Measure the Sodium Chloride
Using a measuring scale or balance, weigh out 10 grams of sodium chloride. Be precise with your measurements, as the concentration of the solution depends on this ratio.
Step 2: Pour Distilled Water into the Beaker
Pour 100 milliliters of distilled water into a beaker or flask. Distilled water is preferred to avoid any impurities that may affect the solution’s concentration.
Step 3: Add Sodium Chloride to the Water
Slowly add the 10 grams of sodium chloride to the beaker containing the distilled water. Stir the mixture gently with a stirring rod or spoon to ensure that the salt dissolves completely.
Step 4: Continue Stirring
Continue stirring the solution until the sodium chloride is fully dissolved. It may take a few minutes for the salt to dissolve, so be patient and ensure that no undissolved salt remains at the bottom of the beaker.
Step 5: Verify the Solution’s Concentration
To ensure that your solution is indeed a 10% NaCl solution, you can use a refractometer or a hydrometer. These devices measure the solution’s refractive index or specific gravity, respectively, which are directly related to its concentration.
Step 6: Clean Up and Store the Solution
Once you have prepared the 10% NaCl solution, clean up your workspace by disposing of any waste materials properly. Store the solution in a labeled container with a tight-fitting lid to prevent contamination and evaporation.
By following these steps, you can prepare a 10% sodium chloride solution accurately and safely. Remember to always prioritize safety and handle chemicals with care.
