The molecular formula for 2, 2, 3-trimethylbutane is to be determined. Concept introduction: The molecular formula is the simplest representation of the compound that tells about the number of each atoms present in the given compound. In the IUPAC name of an organic compound, the Greek prefix represents the number of the substituent and the numbers before the Greek prefix represent the position of the substituents. The suffix for alkane is ‘ane. The number of carbon atoms in the parent hydrocarbon chain is represented by the root name. For example: ‘prop’ represent 3 carbon atoms in the main hydrocarbon chain.

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Strain Energy for Alkanes Interaction / Compound kJ/mol kcal/mol H: H eclipsing 4.0 1.0 H: CH3 eclipsing 5.8 1.4 CH3 CH3 eclipsing 11.0 2.6 gauche butane 3.8 0.9 cyclopropane 115 27.5 cyclobutane 110 26.3 cyclopentane 26.0 6.2 cycloheptane 26.2 6.3 cyclooctane 40.5 9.7 (Calculate your answer to the nearest 0.1 energy unit, and be sure to specify units, kJ/mol or kcal/mol. The answer is case sensitive.) H. H Previous Next

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Chapter 21, Problem 18E

Interpretation Introduction

Interpretation:

The molecular formula for 2, 2, 3-trimethylbutane is to be determined.

Concept introduction:

The molecular formula is the simplest representation of the compound that tells about the number of each atoms present in the given compound.

In the IUPAC name of an organic compound, the Greek prefix represents the number of the substituent and the numbers before the Greek prefix represent the position of the substituents. The suffix for alkane is ‘ane. The number of carbon atoms in the parent hydrocarbon chain is represented by the root name. For example: ‘prop’ represent 3 carbon atoms in the main hydrocarbon chain.

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Strain Energy for Alkanes Interaction / Compound kJ/mol kcal/mol H: H eclipsing 4.0 1.0 H: CH3 eclipsing 5.8 1.4 CH3 CH3 eclipsing 11.0 2.6 gauche butane 3.8 0.9 cyclopropane 115 27.5 cyclobutane 110 26.3 cyclopentane 26.0 6.2 cycloheptane 26.2 6.3 cyclooctane 40.5 9.7 (Calculate your answer to the nearest 0.1 energy unit, and be sure to specify units, kJ/mol or kcal/mol. The answer is case sensitive.) H. H Previous Next

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