Chemistry, asked by aanchaldhiman8908, 1 year ago

Q2)Calculate the percentage of copper in a sample of CuCl2 (atomic mass of Cu=63.5u Cl=35.5u)

Answers

Answered by Aman63345
45
CuCl2 = 63.5+71= 134.5
percentage= 63.5×100÷134.5= 47.2℅
hope it will help..
Answered by kobenhavn
19

Answer:  The mass percent of copper in CuCl_2 is 47.23 %.

Explanation:

In CuCl_2, there are 1 copper atom and 2 chlorine atoms.

To calculate the mass percent of element in a given compound, we use the formula:

\text{Mass percent of copper}=\frac{\text{Mass of copper}}{\text{Molar mass of copper chloride}}\times 100

Mass of copper = 63.5 g

Mass of copper chloride = 134.5 g

Putting values in above equation, we get:

\text{Mass percent of copper}=\frac{63.5}{134.5}}\times 100=47.23\%

Hence, the mass percent of copper in copper chloride is 47.23 %.

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