Question

What is the gram equivalent weight of hydrogen peroxide as reductant?

Answer 1

We know that hydrogen peroxide is a chemical compound that has formula ${H_2}{O_2}$. It appears as pale blue liquid, and has higher viscosity when compared to water. The simplest peroxide is hydrogen peroxide and we can use it as a bleaching agent, antiseptic, and oxidizer. A reactive oxygen species is concentrated hydrogen peroxide and is utilized as propellant in rockets.

Complete step by step answer:
Equivalent weight (otherwise called gram equivalent) is the mass of one same that is the mass of a given substance which will join with or uproot a fixed amount of another substance. Equivalent weight has the measurements and units of mass, in contrast to nuclear weight, which is dimensionless. Equivalent weights were initially controlled by analysis, however presently gotten from molar masses.
When hydrogen peroxide is employed as reductant, it is oxidized to oxygen. We can write the chemical equation as,
${H_2}{O_2} \to {O_2}$
In this reaction, the change in oxidation number is two.
The molar mass of hydrogen peroxide is $34g$.
So, the gram equivalent weight of hydrogen peroxide is calculated using the molar mass and change in oxidation number.
Gram equivalent weight of hydrogen peroxide=$\dfrac{{34}}{2}$
Gram equivalent weight of hydrogen peroxide=$17g$
The gram equivalent weight of hydrogen peroxide as reductant is $17g$.
Therefore, the equivalent weight is $152g$ .

Note: We know that hydrogen peroxide is not highly stable and it gets slowly decomposed in the availability of light. Due to its instability, we can store hydrogen peroxide with a stabilizer in a weakly acidic solution which is dark colored. We can also find hydrogen peroxide in biological systems that also includes the human body. Peroxidases are the name of enzymes that are used in the decomposition of hydrogen peroxide.