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Chapter 24: Problem 26

Give the general formula for any cyclic alkene, that is, a cyclic hydrocarbon with one double bond.

Short Answer

Expert verified
The general formula for any cyclic alkene, a cyclic hydrocarbon with one double bond, is \(C_nH_{2n-2}\).

Step by step solution

01

Identify the type of hydrocarbon

A cyclic alkene is a type of hydrocarbon with a cyclic structure and only one double bond in the molecule. The presence of a double bond means that alkenes are unsaturated hydrocarbons.
02

Determine the basic formula for unsaturated hydrocarbons

The general formula for alkenes (unsaturated hydrocarbons) is \(C_nH_{2n}\), where n represents the number of carbon atoms in the molecule.
03

Adjust the formula for a cyclic structure

In a non-cyclic alkene, there are two additional hydrogen atoms due to the free ends of the chain. However, in a cyclic structure, these free ends are closed to form a ring, meaning that there will be two fewer hydrogen atoms in the molecule. So, we must subtract 2 from the number of hydrogen atoms in the general alkene formula. The adjusted formula becomes \(C_nH_{2n-2}\), where n represents the number of carbon atoms in the cyclic alkene molecule.
04

Final Answer

The general formula for any cyclic alkene, a cyclic hydrocarbon with one double bond, is \(C_nH_{2n-2}\).

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Most popular questions from this chapter

Can a DNA strand bind to a complementary RNA strand? Explain.

Give the name or condensed structural formula, appropriate: (a) CCCCC(C)CC(C)C (b) 2,2 -dimethylpentane (c) 4 -ethyl-1,1-dimethylcyclohexane (d) \(\left(\mathrm{CH}_{3}\right)_{2} \mathrm{CHCH}_{2} \mathrm{CH}_{2} \mathrm{C}\left(\mathrm{CH}_{3}\right)_{3}\) (e) \(\mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{CH}\left(\mathrm{C}_{2} \mathrm{H}_{5}\right) \mathrm{CH}_{2} \mathrm{CH}_{2} \mathrm{CH}_{2} \mathrm{CH}_{3}\)

Write the condensed structural formulas for as many alkenes and alkynes as you can think of that have the molecular formula \(\mathrm{C}_{6} \mathrm{H}_{10}\)

Write the structural formulas for as many alcohols as you can think of that have empirical formula \(\mathrm{C}_{3} \mathrm{H}_{6} \mathrm{O}\).

The standard free energy of formation of solid glycine is \(-369 \mathrm{~kJ} / \mathrm{mol},\) whereas that of solid glycylglycine is \(-488 \mathrm{~kJ} / \mathrm{mol}\). What is \(\Delta G^{\circ}\) for the condensation of glycine to form glycylglycine?
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