Question

Zinc reacts with cuso4 according to the equation zn+cuso4----> znso4+cu.if excess of zinc is added to 100 ml of 0.05 m cuso4 the amount of copper formed

Answer 1

Answer:

Explanation:

If we take the equation of formation of zinc sulphate and copper we see that the reaction is completely balanced and each of them have 1 moles of stoichiometry.

Zn  +  CuSO4  -> ZnSO4  +  Cu

Since, the above equation is balanced, so we know that one mole CuSo4 will give us 1 mole copper.

Hence, the moles of CuSO4 taken is same as that of the number of moles of Cu.

So, the number of moles of CuSO4 = molarity x volume

                           =  0.05 x 0.1

                           = 0.005

Thus, 0.005 moles of copper is formed.

Then the amount of copper formed will be= 0.005 x 63.5 =0.3175