Question

how to make 2M from 4M copper sulphate solution 10ml​

Answer 1

Answer:

How would you prepare 0.2 M solution of CuSO4?

If we want 100ml of a 0.2M solution of CuSO4, we need to calculate how many grams of CuSO4. 5H2O are needed. So you would dissolve approximately 5g of the Copper Sulfate (hydrate form) crystals in 100ml of water to make a 0.2M solution. 100ml of solution allows for about 15ml in each of your 6 test tubes.