Chemical Equivalents

The equivalent weight of phosphoric acid $({\mathrm{H}}_3{\mathrm{PO}}_4)$ in the given reaction is:

$\mathrm{NaOH}+{\mathrm{H}}_3{\mathrm{PO}}_4\to {\mathrm{NaH}}_2{\mathrm{PO}}_4+{\mathrm{H}}_2\mathrm{O}$

${\mathrm{I}}_2+10{\mathrm{HNO}}_3 \to 2{\mathrm{HIO}}_3+10{\mathrm{NO}}_2+4{\mathrm{H}}_2\mathrm{O}$

The equivalent wt. of ${\mathrm{HNO}}_3$ is?
(molar mass of ${\mathrm{HNO}}_3=\mathrm{M}$)

Metal to metal displacement method is used to find the equivalent masses of which iron, if a calcium nitrate solution is given to us.

In metal to metal displacement method, the ratio of equivalent masses of the less electropositive to a more electropositive metal is equal to the ratio of the masses of less electropositive metal displaced to a more electropositive metal added.

Metal to metal displacement method can be used to find the equivalent masses of which metal if calcium nitrate solution is given to us.

In metal to metal displacement method, the ratio of equivalent masses of the less electropositive to a more electropositive metal is equal to

Describe the principle involved in the determination of the equivalent mass of an element by metal to metal displacement method.

In oxide formation method, the mass of the element which combines with $35.5 \mathrm{g}$ of chlorine is the equivalent mass of the element.

The chloride of a metal contains $71\%$ chlorine by mass. What is the equivalent mass of the metal?

In chloride formation method, the equivalent mass of element

The equivalent mass of an element combines with what mass of chlorine?

Describe the principle involved in the determination of the equivalent mass of an element by the chloride formation method.

In oxide formation method, the mass of the element which combines with $16 \mathrm{g}$ of oxygen is the equivalent mass of the element.

A metal oxide is reduced by heating it in a stream of hydrogen. It is found that after complete reduction, $5.55 \mathrm{g}$ of the oxide yielded $1.85 \mathrm{g}$ of the metal. Therefore, we can conclude that :

In oxide formation method, the equivalent mass of element$=$

When a metal is burnt, its mass is increased by $24\%$. The equivalent mass of the metal will be

Describe the principle involved in the determination of the equivalent mass of an element by the oxide formation method.

The hydrogen displacement method can be used to determine the equivalent mass of metals such as magnesium, zinc and aluminium.

According to hydrogen displacement method, equivalent mass of a metal$=$