Question

2.50 g CuCl2 equals how many moles

Answer 1

The molar mass of CuCl2 is 134.45 g/mol; therefore, you divide 2.5 g of CuCl2 by 134.45 g of CuCl2 leaving you with 0.019 moles

Answer 2

Explanation:

Number of moles is defined as the mass of substance given in grams divided by the molar mass of substance.

It is given that mass of $CuCl_{2}$ is 2.50 g and molar mass of $CuCl_{2}$ is 134.45 g/mol.

Therefore, calculate number of moles as follows.

      Number of moles of $CuCl_{2} = \frac{mass}{molar mass}$

                                        = $\frac{2.50 g}{134.45 g/mol}$

                                         = 0.0186 mol

                                         = 0.019 mol (approx)

Thus, we can conclude that 2.50 g CuCl2 equals 0.019 moles (approx).