the geometry of the molecule is trigonal pyramidal. The central atom of this molecule is carbon. Majorly dimethyl ether is manufactured via dehydration of methanol and the reaction goes as below: (CH3)2O is highly flammable in nature and hence can pose danger. Find the least electronegative atom and placed it at center. During chemical bonding, the 2s electrons of carbon get unpaired. This is the Lewis Dot Structure . There is no lone pair of electrons on the central C-atom in CH3Cl thus it has an AX4 generic formula. Steric number of CH3OH wrt C = ( 4 + 4 ) / 2 = 4. In this article, we will talk about how to draw the Lewis dot structure of CH3Cl, what is its molecular geometry or shape, electron geometry, bond angle, hybridization, formal charges, polar vs non-polar concept, etc. The dipole moments of these bonds point in the same direction which does not result in the cancellation of the dipole of the molecule as a whole. So, the steric number of 4 implies the Sp3 hybridization on the left side carbon atom(C1). The molecular geometry of a compound is the 3-D representation of the . Below is a step-by-step guide that you can follow to draw the Lewis dot structure of chloromethane (CH3Cl). Count total valence electrons in CH3COOH. Steric number of right side carbon atom(C2)= (Number of bonded atoms attached to C2 + Lone pair on C2). So, it needs 4 more valence electrons to complete the octet. document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ); Welcome to Techiescientist.com. So, the AXN generic formula for the carbon (C1) becomes AX4. Both oxygen atoms have attached to 2 single bonds and both contain 2 lone pairs. Hence, the valence electron for carbon is 4, for oxygen, it is 6, and for hydrogen, it is 1. All the valence electrons initially available are now used up therefore there is no lone pair of electrons on the central C-atom in the Lewis dot structure of CH3Cl. The C-X bond length is greater than a C-H bond length in halo alkanes where X is a halogen. For today's video, we are going to share our step-by-step proces. CH3OCH3 is the chemical formula for the compound Dimethyl Ether. The dipole moment of CH3F is 1. "mainEntity": [{ If you see the 4th step structure, left side carbon already completed its octet as it is attached to 4 single bonds that share 8 electrons. D) two elements react and form a new compound. The electronic configuration of carbon is 1s2 2s2 2p2. 4. Published By Vishal Goyal | Last updated: December 30, 2022, Home > Chemistry > Acetic acid (CH3COOH) lewis structure. 3. As there are a total of 14 valence shell electrons in methanol, therefore, there must be 7 electron pairs in the molecule. of bond pairs electrons and the steric number is not zero, i.e the molecule contains non-zero lone pairs in it. The nitrile functional group(CN) is polarized, because of the greater difference of electronegativity between carbon(2.55) and nitrogen(3.04), and the fact that a triple bond binds these 2 atoms. Since the steric number of the methanol molecule is 4, this means that it has tetrahedral geometry with respect to the oxygen atom as well. Ethylene, C2H4 has the Lewis Structure: The molecular shape is predicted to be trigonal planar around each carbon atom. Moreover, by sharing a bonding pair with oxygen, each hydrogen atom now has a full valence shell of two electrons. It is primary alkyl alcohol in which a methyl group is linked to a hydroxyl functional group. It has a molar mass of 46.07 g/mol and a density of 2.1146 kg/m3 as a gas at 00 C. In liquid form, it is volatile and poisonous. Required fields are marked *. My aim is to uncover unknown scientific facts and sharing my findings with everyone who has an interest in Science. To know more about methanol, it is necessary to get acquainted with its bonding characteristics. Connect outer atoms with the central atom. This is because the least electronegative atom is the one that is most likely to share its electrons with the atoms spread around it. If a compound has 4 bond pairs and no lone pairs, then it will have the tetrahedral geometry. Three of the four sp3 hybrid orbitals of carbon form C-H sigma () bonds by overlapping with the s-orbitals of the hydrogen atoms. No. The electronegativity difference in the O-H bond is 3.44 2.2 = 1.24 which makes this bond polar. Oxygen contains 6 valence electrons which form 2 lone pairs. The electronic configuration of carbon in an excited state is now 1s2 2s1 2p3 which is represented as. Check the stability with the help of a formal charge concept. There are a total of 4 single bonds in the above diagram. Acetaldehyde (IUPAC systematic name ethanal) is an organic chemical compound with the formula CH 3 CHO, sometimes abbreviated by chemists as MeCHO (Me = methyl).It is a colorless liquid or gas, boiling near room temperature. Therefore the total valence electrons are: (1*4) + (1*6) + (1*4) = 14 valence shell electrons. of valence electrons in a molecule is the sum of valence shell electrons of each element in the molecule. document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ); Welcome to Techiescientist.com. 500 sentences with 'exothermic'. The molecular geometry of CH3CN with respect to C. It is used to predict the geometry or shape of a molecule using the VSEPR concept. Shared pair electrons around carbon (one triple bond and one single bond) = 8. We aim to make complex subjects, like chemistry, approachable and enjoyable for everyone. The presence of the hydroxyl group initiates the hydrogen bonding between the methanol molecule and the water molecules when dissolved in water. 4. Your email address will not be published. In each of chloromethane (CH3Cl), dichloromethane (CH2Cl2), and trichloromethane or chloroform (CHCl3), a carbon (C) atom is present at the center. So, it implies tetrahedral geometry. Polarity is the concept or topic in chemistry where we talk about charge distribution inside a molecule of a compound. Its electron geometry is tetrahedral but its molecular geometry is bent as in water. For this, it is required to understand in detail the Lewis structure, VSEPR theory, the Hybridization concept as well as its polar nature. The Lewis electron dot structures of a few molecules are illustrated in this subsection. Now we need to connect the outer atoms with the central atom of the Lewis structure using single straight lines. CH3CN is a polar aprotic solvent means it doesnt have an acidic proton but has the ability to dissolve ions in water. Polar aprotic solvents contain no hydrogen atoms connected directly to an electronegative atom and they are not capable of hydrogen bonding. The electronegativity difference in the C-O bond is 3.44 2.55 = 0.89 which cannot be neglected. X denotes the bonded atoms to the central atom, three hydrogens, and one right side carbon is bonded to it, therefore. A molecule of dimethyl ether has 20 valence electrons. (C) arsenic is covalently bonded to three chlorine atoms. "@type": "Answer", Acetic acid can be made by the oxidation of acetaldehyde (CH3CHO). The VSEPR chart confirms that the molecular geometry or shape of a molecule with an AX4 generic formula is identical to its electron pair geometry i.e., tetrahedral, as we already noted down for chloromethane (CH3Cl). for one carbon atom, F.C. Both carbon atoms have attached to 4 single bonds and zero lone pairs on it, hence, their formal charge will also be the same, so, just count F.C. The exception, of course, being the hydrogen's. They follow the duet rule (2 electrons). 5. Check the stability of the CH3ClLewis structure using the formal charge concept. Lewis Structure of CO2. The VSEPR model assumes that electron pairs in the valence shell of a central atom will adopt an arrangement that . Request PDF | On Mar 1, 2023, Chengcheng Chen and others published Theoretical design and experimental study of pyridine-incorporated polymeric carbon nitride with an optimal structure for . So, just count F.C. I have also written an article on ethanol. To summarise, CH3OH is a polar and a neutral compound that has a tetrahedral geometry and bent and tetrahedral shapes with respect to the oxygen and carbon atoms respectively. When we are drawing a CH3OCH3 molecule, we must remember that it consists of the ether (R-O-R, here R=R) group. It can also cause chronic health conditions in the central nervous system, severe headaches, and numbness, etc. Step 2: Find for how many more valence . The elements present in group 1 to group 17 of the periodic table show a tendency to achieve octet valence shell configuration of the noble gas elements like Ne, Ar, and so on. As per the VSEPR chart, if a central atom is attached with four bonded atoms and has no lone pair then the molecular geometry with respect to that central atom is tetrahedral in nature, and electron geometry is also tetrahedral. Carbon 2 is only attached to the three atoms and it does also not contain any lone pair of electrons, hence, as per VSEPR theory, this atom holds the electron and molecular geometry of trigonal planar. You'll get a detailed solution from a subject matter expert that helps you learn core concepts. To combine with three hydrogen atoms and one hydroxyl group, carbon will be required to extend its octet by exciting one of its valence electrons in the 2s orbital to the 2p orbital. Its electron geometry and its molecular geometry are both tetrahedral as in methane. In the CH3COOH molecule, three types of atoms are present hydrogen, oxygen, and carbon. Required fields are marked *. Now, we have to check the formal charge values for these atoms inside the molecule. An octet means having 8 valence electrons in the outermost shell of an atom. and the next thing you notice is that this is for an ion. We have fulfilled the octet rule and used all the 20 valence electrons. In contrast to that, a Cl-atom needs a total of 8 valence electrons to achieve a stable octet electronic configuration. All the 4 electron density regions are comprised of bond pairs thus there is no lone pair of electrons on the central C-atom in CH3Cl. The molecular shape of a molecule is not the same as its molecular geometry if the difference between the no. There are a total of 12 valence electrons in this Lewis structure i.e., 12/2 = 6 electron pairs. The Lewis structure of CH3Cl consists of a carbon (C) atom at the center which is bonded to three hydrogens (H) atoms and one atom of chlorine (Cl). 'hygroscopic' in a sentence. 3. ) In this tutorial, we will discuss CH3CN lewis structure, molecular geometry, polar or nonpolar, hybridization, etc. Why CH3CN is polar? A Provide the best Lewis structure for the azide anion N3 show the valence electrons for each atom and indicate the formal charge and the atom that bears the formal charge 6 pts B Add formal charges to each resonance structure of HCNO 3 pts Circle the structure that is the most stable 3 pts. All hydrogen atoms in the CH3COOH Lewis diagram have zero formal charges, just count the F.C. This is because noble gases are considered to be stable in nature. I am Savitri,a science enthusiast with a passion to answer all the questions of the universe. So, the above CH3CN lewis structure is the most stable and better, as a formal charge of each atom and overall formal charge in the above structure is zero. Bent b. Tetrahedral c. Trigonal planar d. Pyramidal e. Linear; In the Lewis structure that obey the octet rule (duet rule for H), drawn for a H_2CO molecule, what hybridization would the C atoms adopt? Hence, as per VSEPR theory, this carbon 1 holds the electron and molecular geometry of tetrahedral. Hydrogen (E.N = 2.20) is less electronegative than carbon (E.N = 2.55) but it cannot be chosen as the central atom because a hydrogen (H) atom can accommodate only 2 electrons so it can form a bond with a single adjacent atom only. CH3OCH3 has its use as propellants in aerosol products like hair sprays. The following table shows the respective hybridization of each steric number value. Also, it can cause eye irritation, blurring of vision, and anesthesia. But we dont have any remaining valence electrons as we already used them all in the 4th step structure. All rights Reserved, How to draw lewis structure for CH3COOH (Acetic acid), Follow some steps for drawing the lewis dot structure of CH3COOH (Acetic acid). It has an AX3 generic formula. Wedge-shaped lines to represent bonds . Now, By looking at the image we can see that both the arrows depicting the direction of the dipole moment is pointed towards the oxygen atom. on carbon and oxygen atoms. And the total bonded pair of electrons in the acetic acid (CH3COOH) lewis structure is 16 (8 single bonds). Thus, we do not need to make any changes with regard to the hydrogen atoms in this structure. What is the molecular geometry of PBr3? Either way, we can conclude that the oxygen atom has sp3 hybridization. bond, 1 C-O bond, 1 O-H bond and 1 C-C bond. I also go over hybridization, shape, sigma, pi bonding and bond angles. For this, we have to know what the VSEPR model is. It is calculated by the following formula; Formal charge of an element = (Valence electrons) ((bonding electrons)/2) (Non bonding electrons), 1) Calculation of total valence electrons in methanol. As less electronegative atoms are more prone to share more electrons with surrounding atoms, hence in lewiss diagram, the least electronegative atom always holds the place of the central position. Acetic acid exists as a polar or protic solvent in its liquid form. CH3Cl belongs to the haloalkane family. The team at Topblogtenz includes experts like experienced researchers, professors, and educators, with the goal of making complex subjects like chemistry accessible and understandable for all. The four atomic orbitals; one 2s and three 2p orbitals mix with each other to form four sp3 hybrid orbitals which can be seen in the following image. 3. A shortcut to finding the electron and the molecular geometry of a molecule is by using the AXN method. The steric number of CH3OH according to the VSEPR theory is calculated as follows: 1) Calculating the steric number of methanol with Carbon as the central atom. The chemical equation and the structural equation of a molecule are the two most important factors in . Draw the Lewis diagram for this molecule, give the hybridization of each carbon atom, and describe the p orbitals and the number of electrons that occupy each one. How does Charle's law relate to breathing? Steric number is the addition of a total number of bonded atoms around a central atom and the lone pair present on it., Steric number of left side carbon atom(C1)= (Number of bonded atoms attached to C1 + Lone pair on C1). Valence shell electron-pair repulsion theory (VSEPR theory) enables us to predict the molecular structure, including approximate bond angles around a central atom, of a molecule from an examination of the number of bonds and lone electron pairs in its Lewis structure. N denotes the lone pair on the central atom, according to the CH3CN lewis structure, No lone pair is present on the right side carbon. In VSEPR theory, we deal with AXnEx notations where: A stands for the central atom, here we have the oxygen to be the central atom, X stands for the surrounding atoms, therefore the value of n is 2 ( if we consider the C atoms or the CH3 groups). As we can observe, methanol has three C-H bonds, one C-O bond, and one O-H bond. bonded atoms and lone pairs electrons. },{ "acceptedAnswer": { In drawing the Lewis structure for C 2 H 2 (also called ethyne) you'll find that you don't have enough valence electrons available to satisfy the octet for each element (if you use only single bonds). Here, the valence electrons are represented by small dots and since a single bond consists of two bonding electrons, the two dots between two atoms are represented by a line instead, which represents a bond between them. Lewis Structure Examples. With two bonding pairs and two lone pairs, the oxygen atom has now completed its octet. He holds a degree in B.Tech (Chemical Engineering) and has four years of experience as a chemistry tutor. Acetic acid has a net dipole moment of 1.74 D which is close to water, hence, it forms hydrogen bonds easily in water which shows its true polar nature. Therefore, the net charge on methanol molecule is; This means that methanol is a neutral compound that has 2 lone pairs situated on the oxygen atom and its final lewis structure will look something like as can be seen in the following image; It is however agreeable that a Lewis structure gives a lot of information about a certain compound, although it is difficult to tell a compounds geometry and hybridization exactly by this concept. Structure of Amines 13.7 Method of Preparation of Diazonium 13.2 Classification Salts . For completing the lewis diagram, the last step is to calculate the formal charge. It is an aliphatic nitrile and a volatile organic compound. ", We completed the lewis structure of acetic acid but we needed to check its stability with the help of the formal charge concept. I quickly take you through how to draw the Lewis Structure of CH3CHO (ethanal). It has a molar mass of 46.07 g/mol and a density of 2.1146 kg/m3 as a gas at 00 C. In liquid form, it is volatile and poisonous. for the steric number of 4, we get Sp3 hybridization according to the VSEPR theory. In the Lewis structure of CH3Cl, Carbon is at the central position and all the other atoms around it. C-H, C-H, and C-H and C-Cl bond pair-bond pair repulsive effect exist which makes the bonded electron pairs occupy the four corners of a tetrahedron, as shown in the figure below. Both structures have 4 bonded atoms and no lone pairs on the central S atom. 66475 views Required fields are marked *. This first carbon atom is joined to the three hydrogen atoms and one right side carbon, so, the total number of attached atoms is four and it contains zero lone pairs. The 2s orbital and three half-filled 2p atomic orbitals of carbon consequently hybridize to yield four sp3 hybrid orbitals. The octet rule states for every element to obtain a noble gas configuration i.e to have a total of 2 electrons (in the case of H and He) or a total of 8 electrons in their valence shells. Acetonitrile is not capable of hydrogen bonding in water, still, it is highly polar in nature with a dipole moment higher than 3.5 Debye. Formal Charge of each C atom = 4 0.5*8 0 = 0. Valence electrons are the electrons that are present in the outermost shell of the atom. These electrons form groups ( the lone pairs and the bonded pairs) and we consider the central atom only in VSEPR theory for ease of calculation. But we describe molecular . Definitions . There are only three bonds around boron atom and no lone pairs on boron atom. Lets complete its desire in the next step-, 5. The difference is around 0.89 which results in the formation of polar bonds. Published By Vishal Goyal | Last updated: December 30, 2022, Home > Chemistry > CH3CN lewis structure and its molecular geometry. Hybridization: sp3 How to tell if a molecule is polar or nonpolar? Mastering all the usages of 'hygroscopic' from sentence examples published by news publications. * Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project The outer atom in the CH3CN molecule is hydrogen and nitrogen, since, hydrogen atom only needs two electrons for completing the octet and it has already two electrons because of the single bond attached to it. Acetic acid is a simple organic or monocarboxylic acid made up of two carbon, two oxygen, and four hydrogens with the chemical formula CH3COOH. 3) Placing the valence electrons around individual atoms. The total no. We have utilized 16 of our valence electrons to form 6 C-H and 2 C-O bonds. A total of 8 lone pairs of electrons and 16 bonded pairs of electrons are present in the CH3COOH Lewis structure. document.getElementById("ak_js_1").setAttribute("value",(new Date()).getTime()); Topblogtenz is a website dedicated to providing informative and engaging content related to the field of chemistry and science. Now right side carbon atom is also completed its octet as it has 8 electrons to share(one triple bond contains 6 electrons). All four electron density regions are comprised of bond pairs. We must first draw the Lewis structure of acetic acid. Hence, their formal charge will also same. VSEPR stands for Valence Shell Electron Pair Repulsion theory. Copyright 2023 - topblogtenz.com. Check the stability with the help of a formal charge concept, To determine the formal charge on an atom. Hello everyone, welcome back to Geometry of Molecules, where we make chemistry fun and easy. How many lone pair and bond pair electrons are present in the CH3CN lewis structure? Vishal Goyal is the founder of Topblogtenz, a comprehensive resource for students seeking guidance and support in their chemistry studies. The lesser the electronegativity of an atom more is the ability to share electrons, hence, the least electronegative always takes the central place in the lewis diagram. As the Carbon (C) atom has a lower value, so it will be the central atom. It is naturally present in the atmosphere as well as released into the air via its usage as an industrial chemical and a refrigerant. It is a colorless liquid and has a fruity odor. So, we have the AX2E2 notation for the methoxymethane molecule. For bent molecular geometry when the electron-pair geometry is tetrahedral the bond angle is around 105 degrees. Here, Oxygen with the highest electronegativity value has taken the central position. Are you wondering how we place these atoms in random positions in the above structure? This means all three H-atoms already have a complete duplet in the Lewis structure drawn till yet. Now, you may have a look at the VSEPR chart below. A) two atoms exchange electrons and the ions are attracted to one another. The total number of valence electrons available for drawing, The bonded atoms form a mutual bond angle of 109.5 in the tetrahedral CH, The C-H bond is stronger and has a bond length of 107 pm while the C-Cl bond length is 134 pm in CH, Zero formal charges present on all the bonded atoms in the CH. Now, there is 1 carbon atom, 1 oxygen atom, and 4 hydrogen atoms in one CH3OH molecule. If a compound has two nonbonded pairs of electrons in its Lewis structure, what is its molecular geometry? Carbon 2 belongs to the carboxylic functional group which is attached to the 3 atoms and it also contains no lone pair of electrons. The carbon atom belongs to the 14th periodic group, nitrogen to the 15th group, and hydrogen to the 1st periodic group. Simply put the single bond in between each atom in 2nd step structure. The steric number is a certain value assigned to each type of geometry according to the VSEPR theory which can be calculated by the following formula: Steric number (S) = ( X + M + |a| b )/2, X = no. Total number of valence electron available for the lewis structure of CH3COOH = 4(2) + 6(2) + 1(4) =24 valence electrons. As per the Lewis structure of CH. We know that methanol has three C-H bonds, one C-O bond, and one O-H bond. Since the steric number of the methanol molecule is 4, this means that it has tetrahedral geometry with respect to the carbon atom. Solution Step 1. Other than this, it has applications in varied areas like oxygen-blown gasifiers, welding and soldering industries, diesel engines, printing, and polymerization. Lewis structure of CH3COOH is not much difficult to draw as you might think. This atom has three atoms directly attached and no lone pairs. The structure on the right is the Lewis electron structure, or Lewis structure, for H 2 O. Now we will draw the lewis structure of acetic acid step by step with all possible explanations. AXN is a simple formula to represent the number of atoms bonded to the central atom in a molecule and the number of lone pairs present on it. The following shows how the valence electrons are placed around the respective atoms. Draw the molecule by placing atoms on the grid and connecting them with bonds. For organic molecules, we will observe the same types of geometry - linear, trigonal planar, tetrahedral, trigonal pyramid, and bent. By looking at the table, we can tell that the hybridization of methanol is sp3 wrt to both carbon and oxygen as the central atoms since both of them makes the steric number of the molecule equivalent to 4. Out of these 6 electron pairs, there are 4 bond pairs and 2 lone pairs. Molecular geometry, also known as the molecular structure, is the three-dimensional structure or arrangement of atoms in a molecule. Understanding the molecular structure of a compound can help determine the polarity, reactivity, phase of matter, color, magnetism, as well as the biological activity. When two elements forming a bond have a certain degree of difference in their electronegativity values (usually above 0.4), we get charges at the two poles making the bond polar in nature. (1 0 2/2) = 0 formal charge on all hydrogen atoms. Answered: HC CH3 HC CH CH3. CH3COOH molecule contains a functional group that is also called the carboxylic group(COOH). on carbon atom = (4 0 8/2) = 0. If we want to explain this phenomenon of bond formation, we need to take the help of a model. This theory is required to predict the molecular shape of several compounds although it has its own limitations. Out of the 7 electron pairs, there are 4 bond pairs and 3 lone pairs. This denotes that H is always placed as an outer atom in a Lewis structure. Non-bonding electrons are lone pairs around each atom that are not involved in bonding. Afunctional groupin organicchemistry is a collection of atoms within molecules which bind together to react in predictable ways. Lewis Structure is the initial step towards finding out about the chemical bonding in a given molecule. For a dipole moment to be present between two atoms, there needs to be an electronegativity difference between them. How do you calculate the ideal gas law constant? The most stable geometry for the electron pairs, bonding and non-bonding is a tetrahedron, a prediction of VSEPR. In this way, there are a total of 4 electron density regions around the central C-atom in the CH3OH Lewis structure. Let us do that using the formal charge concept. The molecular geometry or shape of chloromethane (CH3Cl) is tetrahedral. Copyright 2023 - topblogtenz.com. The highly electronegative halogen atom not only attracts the shared electron cloud of the C-Cl bond but also attracts C-H electrons. A wedge and dash projection is a drawing, a means of representing a molecule in which three types of lines are used in order to represent the three-dimensional structure: Solid lines to represent bonds that are in the plane of the paper. Lewis Structure of Borane (BH. We will find the molecular and electron geometry of CH3COOH around both carbon atoms(C1 and C2). As such, the hybridization of the central Carbon atom is sp3. Steps to Draw the Lewis Structure of Methanol (CH3OH). The hybridization concept helps in explaining the bonding in the geometrical shapes of compounds. Save my name, email, and website in this browser for the next time I comment. How do you find density in the ideal gas law. We aim to make complex subjects, like chemistry, approachable and enjoyable for everyone. Acetic acid polarity: is CH3COOH polar or nonpolar? In acetic acid lewis structure, there are 3 C-H bonds, 1 C=O. It is primary alkyl alcohol in which a methyl group is linked to a hydroxyl functional group. Given: molecular formula and molecular geometry . The simple arrangement uses dots to represent electrons and gives a brief insight into various molecular properties such as chemical polarity, hybridization, and geometry.. There are a total of 4 electron density regions around the central P atom, out of which there is 1 lone pair. TableI.A Draw all important structures that follow the octet rule.B. Thecentral atom must not be strongly electronegative and must not be too small in size. It is a weak acid also known as ethanoic acid appears as a colorless liquid and odor like heavy vinegar. In CH, N stands for the lone pairs present on the central atom. As 4(2) = 8, that means 8 valence electrons are already consumed out of the 14 initially available. 13.3 Nomenclature 13.8 Physical Properties 13.4 Preparation of Amines 13.9 Chemical Reactions 13.5 Physical Properties 13.10 Importance of Diazonium Salts in 13.6 Chemical Reactions Synthesis of Aromatic Compounds 'wise Analysis of Last 10 Years' CBSE Board Questions (2020-2011 Number of ques! The hybridization of the atoms in this idealized Lewis structure is . This concept was introduced by Gilbert N. Lewis, 1916. Total number of the Valence electron in carbon = 4, Total number of the valence electrons in oxygen = 6, Total number of the valence electrons in hydrogen = 1, Total number of valence electron available for the lewis structure of CH3COOH = 4(2) + 6(2) + 1(4) = 24 valence electrons [CH3COOH molecule contains two carbon, two oxygen, and 4 hydrogen], 2. Therefore, we can say that the hybridization of CH3OH is sp3. So, each oxygen atom has 8 valence electrons around them and each hydrogen has 2, hence, these atoms completed their octet comfortably.
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