How would I get the volume needed of the .40 M CuSO4 in the table? If you could

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How would I get the volume needed of the .40 M CuSO4 in the table? If you could just show me how to set up problem and answer for 0.08 concentration that would be great. Thanks! 5. Obtain around 35 mL of 0.40 M CuSO, stock solution and around 30 mL distilled water in separate beaicers. Label these beakers even if is just water. This will be your stock materials and your will be using them for preparing the standard solution in step 6 . Label five clean and dried test tubes with the corresponding concentrations to be prepared. Appropriate labeling of test tubes should include the name of the reactant and the concentration (ex. Standard Sol. Cusos 0.08M). See table bellow for reference. Record and complete Table 1 in your notebook. Note: You must have this calculations before the lab. Test tube Standard Solution Volume needed of the numberConcentration (M) 0.40M CusO4 (mL) 0.08 0.24 0.32 0.40 7. In the pre-lab assignment you calculated how much of the 0.40M Cusos solution you need in order to prepare 10mL of each of the standard solutions. Record Table 1 into your notebook with the

Explanation / Answer

Conc of stock solution = 0.40 M

In order to prepare a solution of conc 0.16 M, the dilution factor is:

d = 0.40/0.16 = 2.5

So,

Volume of stock needed = Volume of final solution/d = 10/2.5 = 4 mL

Similarly, for preparing solutions of conc 0.24 M, 0.32 M and 0.40 M, we need 6 mL, 8 mL and 10 mL of the stock solution.

Hope this helps !

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