How many grams are in 3CuCl2

To determine the number of grams in 3CuCl2, we need to know the molar mass of CuCl2. We can calculate this by adding up the atomic masses of copper (Cu) and chlorine (Cl), then multiplying by the respective number of atoms in the compound.

The atomic mass of copper (Cu) is approximately 63.55 g/mol, and the atomic mass of chlorine (Cl) is approximately 35.45 g/mol.

The formula for copper chloride, CuCl2, indicates that there are 2 chloride ions for every copper ion. Therefore, we need to consider the combined mass of 2 chlorine atoms.

So, calculating the molar mass of CuCl2:
Molar mass = (atomic mass of Cu) + (2 * atomic mass of Cl)
= 63.55 g/mol + (2 * 35.45 g/mol)
= 63.55 g/mol + 70.90 g/mol
= 134.45 g/mol

Now that we know the molar mass of CuCl2 is 134.45 g/mol, we can calculate the number of grams in 3 moles by multiplying the molar mass by 3:

Mass (g) = molar mass (g/mol) * moles
= 134.45 g/mol * 3 mol
= 403.35 g

Therefore, 3 moles of CuCl2 is equal to 403.35 grams.