What is the equivalent weight of the metal

What is the equivalent weight of the metal

 

 

0.5 g of a metal on oxidation gave 0.79 g of its oxide.

The equivalent weight of the metal is

a) 10

b) 14

c) 20

d) 40

 

-----------------------------------------

 

0.79 – 0.5 = 0.29

M : O = 0.5 : 0.29 = x : 8

x = 0.5 × 8 / 0.29 = 13.79

 

 

답: b) 14

 

 

[ 관련 예제 http://ywpop.tistory.com/5591 ]

 

 

[키워드] g당량수, g당량, 당량무게