Question

Specific heat of an unknown metal is 0.08 cal. g-
1.6 1. If the equivalent mass of metal is 13 then the
exact atomic mass will be
(1) 78
(2) 80
(3) 52
(4) 10.4​

Answer 1

Answer:

78

Explanation:

follow this method

1. find Approx atomic weight by formula

Approx atomic weight×specific heat=6.4

specific heat in Cal/g K

2.Then find valency by formula

Valency=Approx atomic weight/Equivalent weight

3. Then find actual weight

Actual weight =Equivalent weight × Valency