Question

Calculate the number of moles of Cu present in 200 g

Answer 1

Given:

Given mass of Copper = 200g

To find:

Number of moles

Solution:

To calculate number of moles formula used-

       $Number of moles = \frac{given mass}{molecular mass }$

here, given mass = 200g

         molecular mass of Cu = 63.54 gmol⁻¹

by substituting given values in above,

          $moles = \frac{200}{63.54}$

         moles = 3.14 mole

Therefore, number of moles of Cu is 3.14mole.