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Answer :
Final answer:
The percentage of copper in a sample of CuCl₂ is calculated by dividing the atomic mass of copper by the molar mass of CuCl₂, then multiplying by 100. This gives us a percentage of approximately 47.21%.
Explanation:
To calculate the percentage of copper in a sample of CuCl₂, first, determine the molar mass of the compound. The molar mass of CuCl₂ is calculated by adding the atomic mass of copper (Cu=63.5u) to two times the atomic mass of chlorine (Cl=35.5x2u) which gives us 134.5u. Then, divide the atomic mass of copper by the molar mass of CuCl₂ and multiply by 100 to get the percentage.
So, it will look like:
(63.5u / 134.5u ) x 100 = 47.21%
Therefore, the percentage of copper in CuCl₂ is approximately 47.21%.
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