Question

What is the gram molecular weight (GMW) of CuCl2?

Answer 1

The gram molecular weight or molar mass of CuCl2 is 134.45 g/mol, calculated by summing the atomic mass of Copper (63.55 g/mol) and twice the atomic mass of Chlorine (35.45 g/mol each).

Step-by-step explanation:

The gram molecular weight (GMW) of CuCl2, also known as its molar mass, can be calculated by summing the atomic mass of Copper (Cu) and twice the atomic mass of Chlorine (Cl) since the chemical formula indicates there are two Chlorine atoms for every Copper atom in the compound.

To find the molar mass of CuCl2, we use the atomic masses from the periodic table:

• Atomic mass of Cu = 63.55 g/mol
• Atomic mass of Cl = 35.45 g/mol

Thus, the molar mass of CuCl2 is:

(1 x 63.55 g/mol) + (2 x 35.45 g/mol) = 134.45 g/mol

This calculation shows the molecular weight of copper(II) chloride (CuCl2) which can be used to convert between moles and grams.

Answer 2

The molar mass of CuCl2 is 134.452 g/mol. Each element's molar mass can be found in its designated box on the periodic table.