Answer:
≈ 2.74 mol
(I rounded to 3 sig figs because the starting amount has 3 sig figs.)
Explanation:
2.73736313184 mol ≈ 2.74 mol
Hope this helps!
3) electronegativity difference
Explanation:
The degree of polarity of a bond is indicated by the electronegativity difference between the atoms that forms the bond.
Electronegativity is the of atoms in a bond to attract the valence electrons in chemical bond more closely to themselves.
- An atom with a high electronegative value often pulls the electron to itself more.
- If the elecronegativity difference between the two species is between 0.4 and 1.7, they are polar covalent bonds.
- If is is greater than 1.7, they are ionic bonds.
- If less than 0.4, then a non-polar covalent bond must have formed.
learn more:
Covalent bonds brainly.com/question/5258547
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CuCl2 is Dichloride Copper, or Copper II Chloride.
In this Molecule, there is 1 atom of Copper for every 2 atoms of Chlorine.
If you go to the periodic table, you'll see that copper has a mass of 63.5 amu, and the chlorine 35.45 amu.
Which mean that the mass of CuCl2 is 63.5 + 35.45*2 = 63.5 + 70.9 = 134.4 g/mol.
Then, you find the ration of the mass of each atom and multiply by 100.
Ratio of Copper:
and you get about 47.2%
Ration of chlorice (Cl2):
and you get about 52.8%.
So, the percent composition of CuCl2 is 47.2% of Copper and 52.8% of chlorine.
Hope this Helps :)