Refer to the Mass Spectrum of 2-Methylbutane Shown Below to Answer

question 19

Short Answer

Refer to the mass spectrum of 2-methylbutane shown below to answer the following question(s). Spectrum obtained from: SDBSWeb: http://www.aist.go.jp/RIODB/SDBS/
-The peak at a m/z of _____ represents the following species. $\mathrm{CH}_{3} \stackrel{+}{\mathrm{C}} \mathrm{HCH}_{3}$

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Definitions:

Closing Entries

Journal entries made at the end of an accounting period to transfer the balances of temporary accounts to permanent accounts, thereby preparing the books for the next period.

Adjusted Trial Balance

A list of all the accounts and their balances after adjusting entries are made, used for preparing financial statements.

Revenue Accounts

Accounts used in accounting to record the company's income from its operations or activities.

Expense Accounts

Expense accounts track the costs incurred by a business in the course of its operations, such as utilities, rent, and payroll.