An element X reacts with oxygen to form a compound X2O3.if the atomic mass of  X is 91.5 the equivalent mass of X? 

Asked by amitjena226 | 30th Nov, 2017, 10:29: AM

Expert Answer:

An element X reacts with oxygen to form a compound X2O3.From this we can calculate the valency of X by cris-cross method.
So, velency of X is 3.
 
Equivalent space mass space equals space fraction numerator Atomic space mass space over denominator Valency end fraction

space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space equals space fraction numerator 91.5 over denominator 3 end fraction

Equivalent space mass space space equals space space 30.5

Answered by Varsha | 30th Nov, 2017, 12:19: PM