Chapter 15.8, Problem 9P

Draw the corresponding resonance hybrid for the three structures.

What is the difference between the hybridization of carbon atoms' valence orbitals in saturated and unsaturated hydrocarbons?

Draw the expanded structural formula for 1,3-dichlorocyclopentane.An expanded structural formula shows all the atoms of the molecule and all the bonds between the atoms in the molecule.

Explain the Properties of the Carbon–Carbon Double Bond ?

How do you find the hydridization of the carbon atoms in the resonance hybrid of benzene?

What will be the formula and electron dot structure of cyclopentane?

Click the "draw structure" button to launch the drawing utility. The curved arrow notation is a powerful method used by organic chemists to show the movement of electrons not only in resonance structures, but also in chemical reactions. Since each curved arrow shows the movement of two electrons, following the curved arrows illustrates the bonds that are broken and formed in the reaction. Consider the following reaction. Use the curved arrows drawn in the reaction to draw the structure of X. X is converted in the following step to phenol and HCI. HO H CF + H-CF phenol

How come the structure labeled as 1 has 8 pi electrons? If the double bond has 2 pi electrons, and you count the lone pairs, wouldn't it have 6 pi electrons?  Why does the structure labeled as 2 has aromaticity? If the pi bond has 2 pi electrons and then you coun the lone pairs, wouldn't it only have 5 pi electrons?

a) Calculate the heat evolve when the ethanol was combusted b) Calculate the enthalpy change of combustion per mole of ethanol