Question

4g of chloride and
anilysis found to contain
1. 800 g of cu and 2.1 logel chlorin. the
mole culag mass of that compound is 134. SJ
calculate the moleculas formula of a given compounet :​

Answer 1

Explanation:

ANSWER

Mass of copper in copper chloride =1.89 g (given)

Mass of Chlorine in Copper Chloride =2.11 g

% age of Cu in 4 g of copper chloride =

4

1.89

×100=47.25%

% age of Cl in 4 g of copper chloride =

4

2.11

×100=52.75%

∴ In 100 g of sample:

Mass of Cu=47.25 g

Mass of Cl=52.75 g

Moles of Cu=

63.5

47.25

=0.74

Moles of Cl=

35.5

52.75

=1.48

So, ratio of moles of Cu and Cl =

1.48

0.74

=

2

1

Thus, the empirical formula of the compound is CuCl

2