The equivalent weight of a certain trivalent | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(C) Let the trivalent element be $M$. Since it is trivalent,its valency is $3$.
The formula of its oxide is $M_2O_3$.
The equivalent weight of $M$ i

Vedclass · Accepted Answer

$168$

Vedclass · Answer

(C) Let the trivalent element be $M$. Since it is trivalent,its valency is $3$.
The formula of its oxide is $M_2O_3$.
The equivalent weight of $M$ is $20$.
Atomic weight of $M = 	ext{Equivalent weight} 	imes 	ext{Valency} = 20 	imes 3 = 60$.
The molecular weight of the oxide $M_2O_3$ is calculated as:
$2 	imes (	ext{Atomic weight of } M) + 3 	imes (	ext{Atomic weight of } O) = 2 	imes 60 + 3 	imes 16 = 120 + 48 = 168$.

The equivalent weight of a certain trivalent element is $20$. The molecular weight of its oxide is:

Similar Questions

Oxygen contains $90\%$ of $^{16}O$ and $10\%$ of $^{18}O$. Its atomic mass is

Naturally occurring boron has $20\%\, _5B^{10}$ and $80\%\, _5B^{11}$. The atomic weight of boron is :-

If $A$,$E$,$M$,and $n$ represent atomic mass,equivalent mass,molecular mass,and valency of an element respectively,which of the following relations is correct?

Atomic weight of an element is $x$. The actual mass of one atom of that element is

Many atoms have non-integral atomic masses because

Vedclass Test Series

Exam Paper Generator

Online Exam Module