(a)
Interpretation:
The overall reaction of the given mechanism has to be identified.
Concept Introduction:
The elementary reactions are categorized according to their molecularity. The term molecularity is referred to the number of reacting species which can be molecules, ions or atoms in an elementary reaction. The species in the reaction mechanism is referred to as the reaction intermediate which does not participate in the overall reaction of the proposed mechanism.
(b)
Interpretation:
The rate law for each step of the given mechanism and the molecularity of each step has to be determined.
Concept Introduction:
Same as part (a).
(c)
Interpretation:
The reaction intermediate in the given proposed reaction mechanism has to be determined.
Concept Introduction:
Same as part (a).
(d)
Interpretation:
The catalyst in the given proposed reaction mechanism has to be determined.
Concept Introduction:
Same as part (a).
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CHEM PRINCIPLES LL W/ACHIEVE ONE-SEM
- The label on a bottle of 3% (by volume) hydrogen peroxide, H2O2, purchased at a grocery store, states that the solution should be stored in a cool, dark place. H2O2decomposes slowly over time, and the rate of decomposition increases with an increase in temperature and in the presence of light. However, the rate of decomposition increases dramatically if a small amount of powdered MnO- is added to the solution. The decomposition products are H2O and O2. MnO2 is not consumed in the reaction. Write the equation for the decomposition of H2O2. What role does MnO2 play? In the chemistry lab, a student substituted a chunk of MnO2 for the powdered compound. The reaction rate was not appreciably increased. WTiat is one possible explanation for this observation? Is MnO2 part of the stoichiometry of the decomposition of H2O2?arrow_forward. Account for the increase in reaction rate brought about by a catalyst.arrow_forwardIodomethane (CH3I) is a commonly used reagent in organic chemistry. When used properly, this reagent allows chemists to introduce methyl groups in many different useful applications. The chemical does pose a risk as a carcinogen, possibly owing to iodomethanes ability to react with portions of the DNA strand (if they were to come in contact). Consider the following hypothetical initial rates data: [DNA]0 ( mol/L) [CH3I]0 ( mol/L) Initial Rate (mol/Ls) 0.100 0.100 3.20 104 0.100 0.200 6.40 104 0.200 0.200 1.28 103 Which of the following could be a possible mechanism to explain the initial rate data? MechanismIDNA+CH3IDNACH3++IMechanismIICH3ICH3++ISlowDNA+CH3+DNACH3+Fastarrow_forward
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