2) Dissolve 0.250 g of CuSO4. 5H2O(s) in deionized water, add to a 5.000 L volumetric flask, dilute to the mark with deionized water and mix well.

3) Dissolve 1.248 g of CuSO4. 5H2O(s) in deionized water, add to a 5.000 L volumetric flask, dilute to the mark with deionized water and mix well.

4) Dissolve 0.0636 g of copper metal in nitric acid, add to a 5.000 L volumetric flask, dilute to the mark with deionized water and mix well.

-Butane can be used as a fuel. How many moles of oxygen are needed to completely react with 6.0 moles of butane?

The unbalanced reaction equation is given below:

C4H10(g) + O2(g)–>CO2(g) + H2O(g)