Determine the volume of a 0.800 m k2cr2o7 solution required to completely react with 4.24 g of cu.

The volume of solution required is 0.0275 L.

Explanation:

To calculate the number of moles, we use the equation:

Given mass of copper = 4.24 g

Molar mass of copper = 63.55 g/mol

Putting values in above equation, we get:

The chemical equation for the reaction of potassium dichromate and copper follows:

By Stoichiometry of the reaction:

3 moles of copper reacts with 1 mole of potassium dichromate.

So, 0.067 moles of copper will react with = of potassium dichromate

To calculate the volume of potassium dichromate, we use the equation:

We are given:

Moles of potassium dichromate = 0.022 mol

Molarity of solution = 0.800 M

Putting values in above equation, we get:

Hence, the volume of solution required is 0.0275 L.