Question
Asked Sep 29, 2019
12 views

Suppose you forget to take into account the presence of unshared pair of electrons on oxygen atom of ethanol. What would you then predict for the C-O-H bond angles and the geometry of ethanol?

check_circle

Expert Answer

Step 1

Ethanol is a an alcohol bearing two carbon atoms and a hydroxyl group. Both the carbons are bonded to four other elements and hence, both the carbon atoms form only sigma bonds. 

The structure of ethanol is as below:

 

help_outline

Image Transcriptionclose

На с ОН Hс

fullscreen
Step 2

As per structure, carbon number 1 is bonded to two hydrogens (-C-H bond), one carbon (-C-C-) and a hydroxyl group (-C-O-H). Carbon number 1 is sp3 hybridized.

Actually, oxygen atom is also sp3 hybridized. Two of the hybridized orbitals are involved in formation of sigma bonds with C and H respectively while the other two contain a lone pair each.

The C-O-H bond with O as central atom can be shown as:

The bonds and lone pairs are oriented with lone pair-lone pair repulsions being more prominant than lone pair-bond pair repulsions which decreases the C-O-H bond angle being less than regular tetrahedral angle.

help_outline

Image Transcriptionclose

На Hас — с C

fullscreen
Step 3

If lone pairs are not to be included, then oxygen is involved in only two bonds i.e. C-O and O-H. As lone pairs are not involved, there are only two bond pairs .

So, to keep the bond pairs apart and to mi...

help_outline

Image Transcriptionclose

На Hас — о—н

fullscreen

Want to see the full answer?

See Solution

Check out a sample Q&A here.

Want to see this answer and more?

Solutions are written by subject experts who are available 24/7. Questions are typically answered within 1 hour.*

See Solution
*Response times may vary by subject and question.
Tagged in

Science

Chemistry

Related Chemistry Q&A

Find answers to questions asked by student like you
Show more Q&A
add
question_answer

Q: Determine the ∆Hvap for a compound that has a measured vapor pressure of 24.3 torr at 273K and 135 t...

A: Click to see the answer

question_answer

Q: Sort the intermolecular forces by increasing strength of interaction: Ion-dipole, Dipole-dipole, H b...

A: The forces which provide interaction including force of repulsion and attraction acting between the ...

question_answer

Q: A solid mixture consists of 30.9 g of KNO3 (potassium nitrate) and 5.2 g of K2SO4 (potassium sulfate...

A: As the given mass of the following salts is:-KNO3 = 30.9 gK2SO4 = 5.2 gThese salts are dissolved in ...

question_answer

Q: Determine the number of K+K+ and F−F− ions required to form a neutral ionic compound.

A: The compounds which consists of ions and are held together by electrostatic forces of attraction are...

question_answer

Q: On my lab, involving extraction, it says “wash the organic layer with 1.0 mL of 1 M aqueous sodium b...

A: From two immiscible substances, the desired product is extracted by liquid-liquid extraction process...

question_answer

Q: Explain the difference between “true” molar mass and “equivalent” molar mass.

A: True molar mass:Mass of one mole of a substance is known as its true molar mass. The unit for true m...

question_answer

Q: Write the net ionic equation for the following molecular equation. CrI2(aq) + Na2CO3(aq)CrCO3(s) ...

A: The given reaction is

question_answer

Q: Write the atomic symbol for each of the following a. an atom with 47 protons and mass number of 107 ...

A: The atomic symbol for each of the following are,The representation of any atom is given by its atomi...

question_answer

Q: Calculate the probability that a particle will be found in a tiny slice of space between 0.49L and 0...

A: Probability of particle in a length L is equal to,