Answer:
To calculate the percent of copper in copper chloride, we need to know the molar mass of copper chloride and the molar mass of copper.
The molar mass of copper chloride (CuCl2) can be calculated by adding the atomic masses of its constituent elements:
molar mass of copper chloride = (atomic mass of copper) + 2*(atomic mass of chlorine)
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.
Therefore, the molar mass of copper chloride (CuCl2) is:
molar mass of CuCl2 = (63.55 g/mol) + 2*(35.45 g/mol)
= 63.55 g/mol + 70.90 g/mol
= 134.45 g/mol
Since copper chloride (CuCl2) contains one copper atom per molecule, the percentage of copper in copper chloride can be calculated as:
% copper = (molar mass of copper / molar mass of copper chloride) * 100
Using the values we have:
% copper = (63.55 g/mol / 134.45 g/mol) * 100
= 47.3%
Therefore, copper chloride contains approximately 47.3% copper.
