.5 grams of pure copper sulfate powder and 2L of water were used to create a copper sulfate solution with a concentration .5ppm. How was this done?
To create a copper sulfate solution with a concentration of 0.5 ppm using 0.5 grams of pure copper sulfate powder and 2 liters of water, follow these steps:
1. Calculate the amount of copper sulfate needed:
- Since the concentration is given in ppm (parts per million), 0.5 ppm means 0.5 mg of copper sulfate per liter of solution.
- Convert 0.5 ppm to grams by dividing it by 1000 (1 mg = 0.001 grams):
0.5 ppm / 1000 = 0.0005 grams
2. Add the calculated amount of copper sulfate to the water:
- Dissolve the 0.5 grams of copper sulfate powder in a small amount of water, ensuring it completely dissolves. Then, transfer the resulting solution to a larger container (which can hold 2 liters of liquid).
3. Dilute the solution to the desired volume:
- Since we have 2 liters of water, add additional water to the copper sulfate solution until the total volume reaches 2 liters.
4. Mix the solution well:
- Stir or shake the container thoroughly to ensure the copper sulfate is evenly dispersed in the water.
By following these steps, you will create a copper sulfate solution with a concentration of 0.5 ppm using 0.5 grams of pure copper sulfate powder and 2 liters of water.