25 volume hydrogen peroxide means | vedclass

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

Question

(B) The term '$25$ volume' $H_2O_2$ means that $1 \, L$ of this solution will give $25 \, L$ of $O_2$ gas at $STP$ upon decomposition.$2H_2O_2(aq) \ri

Vedclass · Accepted Answer

$1 \, L$ marketed solution contains $75 \, g$ of $H_2O_2$.

Vedclass · Answer

(B) The term '$25$ volume' $H_2O_2$ means that $1 \, L$ of this solution will give $25 \, L$ of $O_2$ gas at $STP$ upon decomposition.$2H_2O_2(aq) ightarrow 2H_2O(l) + O_2(g)$From the stoichiometry,$2 	imes 34 \, g$ of $H_2O_2$ produces $22.4 \, L$ of $O_2$ at $STP$.So,$22.4 \, L$ of $O_2$ is produced by $68 \, g$ of $H_2O_2$.Therefore,$25 \, L$ of $O_2$ is produced by $\frac{68}{22.4} 	imes 25 \approx 75.89 \, g$ of $H_2O_2$.Rounding to the nearest value,$1 \, L$ of the solution contains approximately $75 \, g$ of $H_2O_2$.

$A$. Peroxide	$1$. $C_3O_2$
$B$. Superoxide	$2$. $PbO_2$
$C$. Dioxide	$3$. $KO_2$
$D$. Suboxide	$4$. $H_2O_2$

$25$ volume hydrogen peroxide means

Similar Questions

Which of the following acts as both an oxidizing agent and a reducing agent?

The volume strength of $1 \, M \, H_2O_2$ is : (Molar mass of $H_2O_2 = 34 \, g \, mol^{-1}$)

Match List $I$ with List $II$ and select the correct answer using the codes given below the lists:
$A$. Peroxide $1$. $C_3O_2$
$B$. Superoxide $2$. $PbO_2$
$C$. Dioxide $3$. $KO_2$
$D$. Suboxide $4$. $H_2O_2$

Which of the following properties is/are $TRUE$ for hydrogen peroxide?
$(i)$ Mild disinfectant $(ii)$ Rocket propellant
$(iii)$ Bleaching agent $(iv)$ Oxidising agent

Hydrogen peroxide acts both as an oxidising and as a reducing agent depending upon the nature of the reacting species. In which of the following cases $H_2O_2$ acts as a reducing agent in acidic medium?

Vedclass Test Series

Exam Paper Generator

Online Exam Module