Question

4gram of copper chloride on analysis was founded to contain 1.890gram of copper and 2.110gram of chlorine.
What is the empirical formula of copper chloride??
(cu=63.5u,cl=35.5u)
Please jisko aata jo vo hi dena
Please answer it​

Answer 1

Answer

Four gram of copper chloride contain 1.890 g of copper and 2.110 g of chlorine. find it's empirical formula 4.4/594

Given,mass of copper in copper chloride = 1.89 g

mass of chlorine in copper chloride = 2.11 g

Percentage of copper in 4g

copper chloride = (1.89/4) x 100 = 47.25%

Percentage of chlorine in 4 g copper chloride = (2.11/4) x 100 = 52.75 %

Therefore, in a 100 g sample:

mass of copper = 47.25g

moles of copper = 47.25/63.5 = 0.74mass of chlorine = 52.75 g

moles of chlorine = 52.75/35.5 = 1.48

Ratio of moles of copper and chlorine = 0.7

4:1.48= 1 : 2

Thus, the empirical formula of the compound = CuCl2

Answer 2

Answer:

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