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Chapter 2: Problem 6

Write molecular formulas for each bicycloalkane, given its number of carbon atoms. (a) Hydrindane ( 9 carbons) (b) Decalin (10 carbons) (c) Norbornane ( 7 carbons)

Short Answer

Expert verified
Answer: The molecular formulas of hydrindane, decalin, and norbornane are C9H14, C10H16, and C7H10, respectively.

Step by step solution

01

1. Determine the molecular formula of Hydrindane

Hydrindane has 9 carbon atoms. We can use the general formula for bicycloalkanes CnH(2n-4) to determine the molecular formula. C9H(2 * 9 - 4) = C9H14; Hence, the molecular formula of Hydrindane is C9H14.
02

2. Determine the molecular formula of Decalin

Decalin has 10 carbon atoms. We can use the general formula for bicycloalkanes CnH(2n-4) to determine the molecular formula. C10H(2 * 10 - 4) = C10H16; Hence, the molecular formula of Decalin is C10H16.
03

3. Determine the molecular formula of Norbornane

Norbornane has 7 carbon atoms. We can use the general formula for bicycloalkanes CnH(2n-4) to determine the molecular formula. C7H(2 * 7 - 4) = C7H10; Hence, the molecular formula of Norbornane is C7H10.

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Most popular questions from this chapter

Following are the alternative chair conformations for trans-1,2-dimethylcyclohexane. (a) Estimate the difference in free energy between these two conformations. (b) Given your value in (a), calculate the percent of each chair present in an equilibrium mixture of the two at \(25^{\circ} \mathrm{C}\).

Following are structural formulas for 1,4 -dioxane and piperidine. 1,4-Dioxane is a widely used solvent for organic compounds. Piperidine is found in small amounts in black pepper (Piper nigrum). C1CCNCC1 1,4-Dioxane Piperidine (a) Complete the Lewis structure of each compound by showing all unshared electron pairs. (b) Predict bond angles about each carbon, oxygen, and nitrogen atom. (c) Describe the most stable conformation of each ring and compare these conformations with the chair conformation of cyclohexane.

Each of the following compounds is either an aldehyde or a ketone (Section 1.3C). Which structural formulas represent the same compound and which represent constitutional isomers? (a) CCC(C)=O (b) O=C1CCCC1 (c) CCC(=O)CC (d) CC(C)C=O (e) CCCC=O (f) CCCC(C)=O (g) O=C1CCCCC1 (h) O=CC1CCCC1

For 1,2-dichloroethane: (a) Draw Newman projections for all eclipsed conformations formed by rotation from \(0^{\circ}\) to \(360^{\circ}\) about the carbon-carbon single bond. (b) Which eclipsed conformation(s) has (have) the lowest energy? Which has (have) the highest energy? (c) Which, if any, of these eclipsed conformations are related by reflection?

Following are the structural formulas and names of four bicycloalkanes. Write the molecular formula of each compound. Which of these compounds are constitutional isomers?
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