Question

What is the molar mass of CuCl₂? How many moles are in 79.8 grams of CuCl₂?

Answer 1

What is the molar mass of CuCl₂? 134,4524 gr/mol

How many moles are in 79.8 grams of CuCl₂? 0,5935 moles of CuCl₂

Step-by-step explanation:

• What is the molar mass of CuCl₂?

Atomic weight of each element:

Cu = 63.546 * 1 = 63.546 gr/mol

Cl₂ = 35.4532 * 2 = 70,9064 gr/mol

The molar mass of CuCl₂ = 63.546 gr/mol + 70,9064 gr/mol

The molar mass of CuCl₂ = 134,4524 gr/mol

• How many moles are in 79.8 grams of CuCl₂?

`79.8\,grams\, \,of\, \,CuCl_2*(1 mol\,CuCl_2)/(134.4524\,grams\,\,of\,CuCl_2) \approx 0,5935\,\, mol \,of \,CuCl_2`