A commercial sample of hydrogen peroxide is l | vedclass

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

Question

(A) The decomposition of hydrogen peroxide is given by the equation: $2H_2O_2(aq) \rightarrow 2H_2O(l) + O_2(g)$.$1$ volume of $H_2O_2$ solution gives

Vedclass · Accepted Answer

$3$

Vedclass · Answer

(A) The decomposition of hydrogen peroxide is given by the equation: $2H_2O_2(aq) ightarrow 2H_2O(l) + O_2(g)$.$1$ volume of $H_2O_2$ solution gives $10$ volumes of $O_2$ at $STP$.$2 	imes 34 \ g$ of $H_2O_2$ produces $22400 \ mL$ of $O_2$ at $STP$.So,$22400 \ mL$ of $O_2$ is produced by $68 \ g$ of $H_2O_2$.Therefore,$1000 \ mL$ of $O_2$ (for $10$ volume) is produced by $(68 	imes 1000) / 22400 \approx 3.036 \ g$ of $H_2O_2$.Since $1000 \ mL$ of $H_2O_2$ solution weighs approximately $1000 \ g$,the percentage concentration is $(3.036 / 1000) 	imes 100 \approx 3\%$.

$A$ commercial sample of hydrogen peroxide is labeled as $10$ volume. What is its percentage concentration approximately (in $\%$)?

Similar Questions

Which of the following oxides produces $H_2O_2$ when treated with $HCl$?

In which of the following reactions,hydrogen peroxide acts as an oxidizing agent?

Strength of a $H_2O_2$ solution is labelled as $1.79 \, N$. Its strength can also be expressed as closest to $... \, \text{volume}$.

To an aqueous solution of $AgNO_3$,some $NaOH_{(aq)}$ is added until a brown precipitate is obtained. To this,$H_2O_2$ is added dropwise. The precipitate turns black with the evolution of $O_2$. The black precipitate is:

The reaction $H_2S + H_2O_2 \to S + 2H_2O$ manifests

Vedclass Test Series

Exam Paper Generator

Online Exam Module