(C) The formula of the oxide is $M_2O_3$. In $M_2O_3$,the valency of metal $M$ is $3$ (since oxygen has a valency of $2$).Atomic mass of $M = \text{Eq

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(C) The formula of the oxide is $M_2O_3$. In $M_2O_3$,the valency of metal $M$ is $3$ (since oxygen has a valency of $2$).Atomic mass of $M = \text{Equivalent mass} \times \text{Valency} = 9 \times 3 = 27 \ g/mol$.The molecular mass of $M_2O_3 = (2 \times \text{Atomic mass of } M) + (3 \times \text{Atomic mass of } O)$.Molecular mass $= (2 \times 27) + (3 \times 16) = 54 + 48 = 102 \ g/mol$.

Class 11 Chemistry Some Basic Concepts of Chemistry Atomic, Molecular and Equivalent masses

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The oxide of a metal has the molecular formula $M_2O_3$. If the equivalent mass of the metal is $9$,what is the molecular mass of the oxide?

A
$27$
B
$75$
C
$102$
D
$18$

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Class 11

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Some Basic Concepts of Chemistry

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Atomic, Molecular and Equivalent masses

In the chemical scale,the relative atomic mass of the naturally occurring isotopic mixture of oxygen atoms $({}^{16}O, {}^{17}O, {}^{18}O)$ is taken as:

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The equivalent mass of iodine in the following reaction is $I_2 + 2S_2O_3^{2-} \longrightarrow 2I^{-} + S_4O_6^{2-}$

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If $1.2 \, g$ of a metal displaces $1.12 \, L$ of hydrogen at $STP$,the equivalent weight of the metal would be:

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

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Write about Formula Mass.

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The oxide of a metal has the molecular formula $M_2O_3$. If the equivalent mass of the metal is $9$,what is the molecular mass of the oxide?

Similar Questions

In the chemical scale,the relative atomic mass of the naturally occurring isotopic mixture of oxygen atoms $({}^{16}O, {}^{17}O, {}^{18}O)$ is taken as:

The equivalent mass of iodine in the following reaction is $I_2 + 2S_2O_3^{2-} \longrightarrow 2I^{-} + S_4O_6^{2-}$

If $1.2 \, g$ of a metal displaces $1.12 \, L$ of hydrogen at $STP$,the equivalent weight of the metal would be:

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

Write about Formula Mass.

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