Question

The equivalent mass of a certain bivalent metal is 20. The molecular mass of its anhydrous chloride is?​

Answer 1

Explanation:

The equivalent mass of a certain bivalent metal is 20. The molecular mass of bivalent metal will be double of the equivalent mass. It will be

2

×

20

=

40

.

The metal is bivalent. So 1 mole of metal atoms will combine with 2 moles of chlorine atoms.

M

+

C

l

2

→

M

C

l

2

The atomic mass of chlorine is 35.5 g/mol.

The molecular mass of its anhydrous chloride will be

40

+

2

(

35.5

)

=

111

g/mol.