The answeres to the previous post was not what I am looking for...so please try to help me.....

How can I make various concentrations of CuSO4(this is a blue solution)?

I know that to make 0.1M you would fill the copper solution up to 10mL in the graduated cylinder and then add water to the rest..but how can you prepare a 0.01M? 0.001? 0.0001?..........using water and graduated cylinder?

If you have .1M, and want .01M, that is a dilution of 10. One part .1M silution, nine parts water. One part=10/10 ml

.0001 from .1M, that is a thousand dilution, 1 part .1M, and 999 parts water. One part=10ml/1000

To prepare various concentrations of CuSO4 using a water and graduated cylinder method, you will need to know the desired molar concentration and the volume you want to make. Here is a step-by-step explanation on how to prepare different concentrations:

1. Start with the molar concentration you want to prepare, for example, 0.01M.

2. Calculate the number of moles of CuSO4 needed based on the desired concentration and the volume you want to make. For example, if you want to make 100 mL of 0.01M CuSO4, you would need 0.01 moles of CuSO4 (0.01 mol/L x 0.1 L).

3. Convert the moles of CuSO4 needed into grams using the molar mass of CuSO4 (Cu: 63.55 g/mol, S: 32.07 g/mol, O: 16.00 g/mol). For example, if you need 0.01 moles of CuSO4, you would need 0.01 moles x (63.55 g/mol + 32.07 g/mol + 4 x 16.00 g/mol) = 0.01 moles x 160.55 g/mol = 1.6055 grams of CuSO4.

4. Weigh out the calculated mass of CuSO4 using an analytical balance. Make sure the balance is calibrated and that you use appropriate safety precautions.

5. Transfer the weighed CuSO4 into a clean graduated cylinder.

6. Add distilled water to the graduated cylinder while swirling gently to dissolve the CuSO4 completely. Keep adding water and swirling until the solution reaches the desired volume. In this case, since you want to make 100 mL of solution, add water up to the 100 mL mark on the graduated cylinder.

7. Once the CuSO4 is completely dissolved, transfer the solution to a clean, labeled container for storage or further use.

8. You can repeat this process for other desired concentrations, adjusting the molar concentration and volume accordingly.

Remember to take safety precautions when handling chemicals and always follow proper lab procedures.