+ A https? www-awh.aleks.com/alekscgi/x/1sl.e O ADVANCED MATERIAL Identifying in

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+ A https? www-awh.aleks.com/alekscgi/x/1sl.e O ADVANCED MATERIAL Identifying inl ediates in a reaction mechanism Consider the following mechanism for the formation of dinitrogen pentoxide: (1) NO2(g) + ?3(9) NO (9) + NO2(9) NO3(g) + O2(g) N2Os(9) Write the chemical equation of the overall reaction: Are there any intermediates in this mechanism? O yes O no If there are intermediates, write down their chemical formulas. Put a comma between each chemical formula, if there's more than one. Explanation Check

Explanation / Answer

1)
Overall reaction can be obtained by adding both steps

After adding the both steps, the reaction becomes:
NO3 (g) + 2 NO2 (g) + O3 (g) —> NO3 (g) + O2 (g) + N2O5 (g)

Remove the common compounds from both side:
2 NO2 (g) + O3 (g) —> O2 (g) + N2O5 (g)

This is the answer

2)
Yes there is intermediate

3)
NO3 is intermediate
Because this is produced in step 1 and used again in step 2

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