A mL sample of an aqueous solution requires exactly mL of for complete redox oxidation in an acidic — Redox Reactions and Volumetric Analysis Chemistry Question

💡 Solution & Explanation

According to the Universal Law of Equivalence, milli-equivalents of $H_2O_2$ = milli-equivalents of $KMnO_4$ . Solving: $N \times 10.0 = 25.0 \times 0.2 \Rightarrow 10N = 5.0 \Rightarrow N = 0.5$ Normal. The volume strength of any $H_2O_2$ solution is directly related to its normality by the standard equation: Volume strength = $5.6 \times N$ . Therefore, Volume strength = $5.6 \times 0.5 = 2.8 V$ .