The Decomposition of N₂O₅ in Solution in Carbon Tetrachloride Proceeds

question 81

Multiple Choice

The decomposition of N₂O₅ in solution in carbon tetrachloride proceeds via the reaction 2N₂O₅ (soln) → 4NO₂ (soln) + O₂ (soln)
The reaction is first order and has a rate constant of 4.82 × 10^-3s^-1 at 64°C. If the reaction is initiated with 0.058 mol in a 1.00-L vessel, how many moles remain after 151 s?

• A)0.055
• B)0.060
• C)0.028
• D)12
• E)2.0 × 10³

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Definitions:

Carbanion

An ion that contains a negatively charged carbon atom, typically highly reactive in organic chemistry.

Carbocation

A species characterized by a carbon atom bearing a positive charge and three bonds instead of the usual four, making it highly reactive in organic reactions.

4-Phenylbutan-2-ol

An organic compound with the structure of butan-2-ol substituted with a phenyl group at the fourth carbon.

3-Phenylpropanal

An organic compound characterized by a benzene ring attached to a three-carbon chain ending in an aldehyde group.