Answer:
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Answer:
Element Symbol # of Atoms
Iron Fe 2
Oxygen O 12
Sulfur S 3
Alkaline Earth Metals and Alkali Reactive metals because they need more electrons to acquire octet.
The first thing we need to remember is that:
We have 7.54g of CuCl2 so we need to express this amount in moles dividing by the molar mass of CuCl2.
This is:
And, also remember that 65.0mL equals 0.065L.
Now, replacing in the molarity equation:
Thus the answer is 0.862M.