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C. Presence of a Catalyst In general, catalyst, are chemical compounds that increase reaction rates (decrease the time) by decreasing the activation energy (E.) of a chemical reaction but are not consumed within the chemical reaction. Hydrogen peroxide [H,O-] degrades in aqueous solutions into water and molecular oxygen [O,]. The molecular oxygen is observable in the reaction as gaseous bubbles. Generally, this reaction is very slow taking days to complete. 2H,02(aq)2H0()+0(g) Parameters of the experiment: two test tubes are collected where one test tube contains a 3% solution of hydrogen peroxide. Another test tube is made consist 3% hydrogen peroxide solution where small crystals of Manganese (IV) Oxide [MnO] are added. Lab Data (Observation): Test-A (3% H;02): No bubbles are observed over a period of 20 minutes. Test-B (3% H2O2 and MnO2 crystals): Bubbles are observed immediately in an almost explosive manner. Question-7 Based on the observation above does MnOz act as a catalyst in the degradation of hydrogen peroxide to molecular oxygen.

C. Presence of a Catalyst In general, catalyst, are chemical compounds that increase reaction rates (decrease the time) by decreasing the activation energy (E.) of a chemical reaction but are not consumed within the chemical reaction. Hydrogen peroxide [H,O-] degrades in aqueous solutions into water and molecular oxygen [O,]. The molecular oxygen is observable in the reaction as gaseous bubbles. Generally, this reaction is very slow taking days to complete. 2H,02(aq)2H0()+0(g) Parameters of the experiment: two test tubes are collected where one test tube contains a 3% solution of hydrogen peroxide. Another test tube is made consist 3% hydrogen peroxide solution where small crystals of Manganese (IV) Oxide [MnO] are added. Lab Data (Observation): Test-A (3% H;02): No bubbles are observed over a period of 20 minutes. Test-B (3% H2O2 and MnO2 crystals): Bubbles are observed immediately in an almost explosive manner. Question-7 Based on the observation above does MnOz act as a catalyst in the degradation of hydrogen peroxide to molecular oxygen.

Chemistry
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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C. Presence of a Catalyst In general, catalyst, are chemical compounds that increase reaction rates (decrease the time) by decreasing the activation energy (E.) of a chemical reaction but are not consumed within the chemical reaction. Hydrogen peroxide [H,O] degrades in aqueous solutions into water and molecular oxygen [0]. The molecular ozygen is observable in the reaction as gaseous bubbles. Generally, this reaction is very slow taking days to complete. 2H,0() + 0,(g) Parameters of the experiment: twD test tubes are collected where one test tube contains a 3% solution of hydrogen peroxide. Another test tube is made consist 3% hydrogen peroxide solution where small crystals of Manganese (IV) Oxide [MnO] are added. Lab Data (Observation): Test-A (3% H,0,). No bubbles are observed over a period of 20 minutes. Test-B (3% H202 and MnO2 crystals). Bubbles are observed immediately in an almost explosive manner. Question-7 Based on the observation above does MnO, act as a catalyst in the degradation of hydrogen peroxide to molecular oxygen.
Transcribed Image Text:C. Presence of a Catalyst In general, catalyst, are chemical compounds that increase reaction rates (decrease the time) by decreasing the activation energy (E.) of a chemical reaction but are not consumed within the chemical reaction. Hydrogen peroxide [H,O] degrades in aqueous solutions into water and molecular oxygen [0]. The molecular ozygen is observable in the reaction as gaseous bubbles. Generally, this reaction is very slow taking days to complete. 2H,0() + 0,(g) Parameters of the experiment: twD test tubes are collected where one test tube contains a 3% solution of hydrogen peroxide. Another test tube is made consist 3% hydrogen peroxide solution where small crystals of Manganese (IV) Oxide [MnO] are added. Lab Data (Observation): Test-A (3% H,0,). No bubbles are observed over a period of 20 minutes. Test-B (3% H202 and MnO2 crystals). Bubbles are observed immediately in an almost explosive manner. Question-7 Based on the observation above does MnO, act as a catalyst in the degradation of hydrogen peroxide to molecular oxygen.
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