In the first determination, a student heated the solution of hydrogen peroxide a

Question

In the first determination, a student heated the solution of hydrogen peroxide and sulfuric acid before titration. Later the student discovered that the percent H2O2 derived from this determination was less than the percents obtained from the second and third determinations, both performed at room temperature. Briefly explain. In the first determination, a student heated the solution of hydrogen peroxide and sulfuric acid before titration. Later the student discovered that the percent H2O2 derived from this determination was less than the percents obtained from the second and third determinations, both performed at room temperature. Briefly explain. In the first determination, a student heated the solution of hydrogen peroxide and sulfuric acid before titration. Later the student discovered that the percent H2O2 derived from this determination was less than the percents obtained from the second and third determinations, both performed at room temperature. Briefly explain.

Explanation / Answer

Solution :-

After heating the solutions the H2O2 may get decomposed to form water and O2 gas therefore its percentage is decreases

following is the reaction equation for the decomposition of the H2O2

2H2O2 -------- > 2H2O + O2

Therefore by the heating the solution the H2O2 concnetration decreases because of the decomposition hence it leads to the lower percentage of the H2O2

Related Questions

Navigate

• Browse (All)
• Browse I
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.