Discussion. 1,2-dimethylcyclopropane b. 2,3-dimethyl-pentane. By knowing its atoms, I can conclude that the compound is a alkane. Write the condensed structural formulas for two alkenes and one alkyne that all have the molecular formula C6H10. Chemistry: An Introduction to General, Organic, and Biological Chemistry 12th. Amines. The 2-dimensional (full display) structural formula for a molecule containing a long hydrocarbon chain, decane (molecular formula C10H22), is shown below: There are no branches or side-chains in this molecule. If there is repetition of a group in a chain, then brackets [square brackets] are used to indicate the repetition of a group in a chain, If groups of atoms are attached to a chain, then parentheses (round brackets) are used to enclose groups attached to a chain. Example 1. Hexana is C6H14 . Match the condensed structural formula on the left with the molecular structure on the right. DrBob1. 1,1-diethyl-2-methylcyclopentane connected to each other. hcbiochem. Carboxylic Acids, Esters, Amines, and Amides. Esters. This gives the structure of 2,3,5-trimethylhexane. Lv 7. Draw line-angle formulas given structural formulas. The LibreTexts libraries are Powered by MindTouch® and are supported by the Department of Education Open Textbook Pilot Project, the UC Davis Office of the Provost, the UC Davis Library, the California State University Affordable Learning Solutions Program, and Merlot. Favorite Answer (CH3)2CHCH(CH3)CH2CH(CH3)2. I know this is a lot to ask but I have been working on this for days and cannot figure out these for the life of me, any help would be appreciated. CH₃CH₃, CH₃CH₂CH₃, and CH₃CH₂OH. It uses parentheses to show that polyatomic groups within a formula are attached to the nearest non-hydrogen atom on the left. Unfortunately, structural formulas are difficult to type/write and take up a lot of space. Answer Save. It's the same molecule it's just a different way to represent that molecule. We also acknowledge previous National Science Foundation support under grant numbers 1246120, 1525057, and 1413739. We then enclose the CH3 groups in paretheses, (CH3) and use the subscript number 2 to indicate that there are two of these groups attached to the same carbon atom, (CH3)2 Relevance. Give the molecular formula, the structural formula, the condensed structural formula, and the abbreviated planar formula for octane. It would be CH3-C(CH3)2-CH(C2H5)-CH2 … 9 years ago. 0 0. soentjiesue. Recent developments in chemistry written in language suitable for students. (d) write this group to the right of the carbon atom of the backbone at the position it is located. In condensed structural formula, every carbon atom is represented individually, and the following carbon atoms are placed to the atoms that are bonded to that particular carbon atom. The formula of the five-carbon alkane pentane is C 5 H 12 so the difference in hydrogen content is 4. Draw the condensed structural formula, or skeletal formula if cyclic, for each of the following: a. diethyl ether b. cyclobutyl methyl ether. The condensed structural formula of benzene is often represented as a A) ring of five carbon atoms. Step 6: If the molecule contains branches or side-chains: (a) condense the structure as for the carbon backbone, (b) use parantheses (round brackets) to enclose groups of atoms attached to the chain, (c) use a subscript number to indicate the number of times this group occurs at that position. The condensed formula for pentane is CH 3 (CH 2) 3 CH 3 or CH 3 CH 2 CH 2 CH 2 CH 3. Draw a condensed structural formula for each of the following compounds. The condensed structural formulas of ethane, propane, and ethanol are. 6 years ago. Answer Save. Topics. Condensed Structural Formula, or semi-structural formula: C(CH3)4. Copy and paste the images into the space below. No ads = no money for us = no free stuff for you! A molecular formula shows only the kinds and numbers of atoms in a molecule. Step 2: Identify the carbon backbone (or skeleton) and any branches or side-chains in the structural formula as well as any functional groups such as halogen (group 17) atoms. Relevance. How do you draw a condensed structural formula for 2,3,5-trimethylhexane? Draw the condensed structural formula for ethylbenzene, 1,3 dichlorobenzene,1,2 and 4-trimethylbenzene ? An expanded structural formula shows all the atoms of the molecule and all the bonds between the atoms in the molecule. Draw line-angle formulas given structural formulas. Convert each of the following line-angle structural formulas to a condensed structural formula 3. Anonymous. Draw the condensed structural formula for the ester formed in each of the following reactions: (a)(EQUATION CAN'T COPY) (b)(EQUATION CAN'T COPY) Answer. 9 years ago. Draw the Line-Angle structure for the molecule below. For example, the molecular formula C4H10 tells us there are 4 carbon atoms and 10 hydrogen atoms in a molecule, but it doesn’t distinguish between butane and isobutane. We could keep going. A condensed formula is a method of describing the elements or molecules that comprise a compound. Upload a structure file or draw using a molecule editor. 1. 2 Answers. Some subtle elements set this type apart from the others notably the “t”, “f”, “w” & “Q”. Step 1: Draw the 2-dimensional structural formula for the molecule. Step 3: Identify groups of atoms along the carbon backbone in the 2-dimensional structural formula. 1 0. There's one oxygen, right here. Line-angle formulas imply a carbon atom at the corners and ends of lines. Thus, structural formulas identify the specific isomers by showing the order of attachment of the various atoms. Concept Introduction: The structural representation of organic compound can be done in 2D and 3D. The same number of atoms of each element (10 hydrogens and 4 carbons, or C 4 H 10) may be used to make a straight … -Methanol CH3OH … Write the condensed structural formula, or semi-structural formula, for 2-chloropropane (molecular formula C3H7Cl). (adsbygoogle = window.adsbygoogle || []).push({}); Want chemistry games, drills, tests and more? Although this system tends to be problematic in application to cyclic compounds, it remains a convenient way to represent simple structures: CH 3 CH 2 OH 5 Answers. Section 3. Dimethyl ether is a gas at room temperature, and ethanol is a liquid at room temperature. How do you draw a condensed structural formula for 2,3,5-trimethylhexane? Which is the correct condensed structural formula for 3,3-diethylhexane? We write them in shorthand notation containing more detail than molecular formula. For example, we can represent pentane (CH3CH2CH2CH2CH3) and isopentane [(CH3)2CHCH2CH3] as follows: Parentheses in condensed structural formulas indicate that the enclosed grouping of atoms is attached to the adjacent carbon atom. Copy and paste the images into the space below. Answer. The condensed formula for pentane is CH3(CH2)3CH3 or CH3CH2CH2CH2CH3. 2 Answers. Clear All 7H CH3OCH, CH3COCH,CH3 CH3CH2NH2 CH,COOCH HOCH Email durasigurent-take atakeAssignmentsessionLocator assignme H CH3OCH, CH3COCH,CHz CH3CH2NH2 HH CH3COOCH3 ++ CH,CONH2 sigutenake&takeAssignmentSessionLocator assignment take [Review Toples) … 4-ethyl-3,3-dimethyl-5-propyldecane c. 2,2-dimethylbutane Legal. 2. Favorite Answer (CH3)2CHCH3. Because the carbons on the left are drawn straight across, we cannot see corners easily, so bend your lines (zig-zag) so that the corners are apparent. This condensed structural formula implies a different connectivity from other molecules that can be formed using the same atoms in the same proportions (isomers). Relevance? Functional Groups. Still have questions? Chemists often use condensed structural formulas An organic chemical formula that shows the hydrogen atoms (or other atoms or groups) right next to the carbon atoms to … Anonymous. Re-write the formula showing these branches (side-chains) as 2-dimensional structures. 1 decade ago. Join Yahoo Answers and get 100 points today. Draw condensed structural formulas for the following compounds. Draw the condensed structural formula, or skeletal formula if cyclic, for each of the following: a. diethyl ether b. cyclobutyl methyl ether. Draw the Lewis structure of the molecule below, showing all atoms and all valence electrons (bonds and lone pairs). 2-Butyne b. For example, consider compounds having the formula C 5 H 8. The only difference is that the condensed structural formula, or semi-structural formula, can be made even more compact by using brackets [square brackets] and subscript numbers to indicate the length of carbon chain between the terminal (end) carbon atoms. Ask Question + 100. Structure and Synthesis of Alcohols. pentane is C5H12, so dimethylpentane will be C7H18. Topics. Answer Save. Condensed chemical formulas show the hydrogen atoms (or other atoms or groups) right next to the carbon atoms to which they are attached. Condensed Structural Formula Of I Is: A. CH3CH2CH2CH2CH2CH2CH, B. CH3CH2CH2CH(CH3)2CH2 C. CH3CH2(CH3)2CH2CH2CH3 D. CH3CH2CH2CH2(CH2),CH E. CH3CH2CH2CH2CH(CH3)2 9. 1 Answer. 3 Answers. Laboratory Chemical Safety Summary (LCSS) Datasheet. The process for writing the condensed structural formula, or semi-structural formula, for a long straight chain hydrocarbon is very similar to that used above for short straight chain hydrocarbons. Give the name or condensed structural formula, as appropriate:? c) 2-ethyl-2-methylhepane. For the sake of clarity, double and/or triple covalent bonds between carbon atoms are usually shown in the condensed structural formula, or semi-structural formula. Draw a line-angle structure for the compound CH3CH2CH(CH3)CH2CH2CH3. For example, consider compounds having the formula C 5 H 8. a. CH3 CH3 CH2CH3 CH2CH3 CH2CH3 C. CH3CH2CH2CCH2CH3 ?H2CH3 CH3 CH3CH2CH2CCH2CH3 CH3 CH2CH3 e. 5. Thus, structural formulas identify the specific isomers by showing the order of attachment of the various atoms. c3h6o structural formula, As noted earlier in the Analysis of Molecular Formulas section, the molecular formula of a hydrocarbon provides information about the possible structural types it may represent. 3. Line-angle formulas imply a carbon atom at the corners and ends of lines. Relevance. Search by Structure or Substructure. neillup. 9 years ago. And if you count up the hydrogens you will get eight. 0 0. peteryoung144. 565-59-3. Lv 6. Unfortunately, structural formulas are difficult to type/write and take up a lot of space. And then we fill in our hydrogen, so there would be three on this carbon. 2,3-DIMETHYLPENTANE. a. Step 2: Identify any functional groups indicated by parentheses, or any halogen atoms in the condensed structural formula, or semi-structural formula. b) 2,3-dimethylhexane. Relevance. Straight lines, dashes and wedges, which typically represent the chemical bonds between atoms in the molecular structure of a compound, are omitted in a condensed formula. 3,4-Dimethylpentane. Convert each of the following line-angle structural formulas to a condensed structural formula. 4 years ago. Draw a condensed structural formula for each of the following hydrocarbons. What's the condensed structural formula for 2,3-dimethylpentane... and also, hexane? Molecular formula: C 5 H 12 Structural formula: CH 3 CH 2 CH 2 CH 2 CH 3 Condensed structural formula: CH 3 (CH 2) 3 CH 3 Abbreviated planar formula: 2. hcbiochem. On the left is shown the complete Lewis structure, showing all atoms and valence electrons. This molecule contains two CH3 groups and eight CH2 groups, The condensed structural formula, or semi-structural formula, above can be further condensed by recognising that the eight CH2 groups occur in a long straight chain (no branches or side chains) so they could be represented as [CH2]8, The condensed structural formula, or semi-structural formula, then becomes CH3-[CH2]8-CH3 or CH3[CH2]8CH3. C) ring of six carbon atoms with a circle in the center. In the condensed structural formula, every carbon atom is represented individually, and the following carbon atoms are placed to the atoms that are bonded to that particular carbon atom. Its condensed structural formula is condensed structural formula of 2,4-dimethylhexane 3-Ethyl-2-pentanol c. 3-Phenyl-1-butanol d. 3,5-Dimethylcyclohexanol However condensed structural formula is lesser extended when we compare it to normal structural formula. Match the condensed structural formula on the left with the molecular structure on the right. This molecule contains an OH functional group as indicated by (OH) bonded to the 2nd C of the backbone: Step 4: Complete the 2-dimensional structural formula by showing the covalent bonds between all the atoms. Write the condensed structural formula 2-pentene. Chemists often use condensed structural formulas to alleviate these problems. 5 years ago. Get your answers by asking now. what is the condensed structural formula for 2-methylpropane? A condensed structural formula may also be referred to as a semi-structural formula. Thus, structural formulas identify the specific isomers by showing the order of attachment of the various atoms. 3-ethylpentane b. A condensed formula is a method of describing the elements or molecules that comprise a compound. Step 4: Complete the 2-dimensional structural formula by showing the covalent bonds between all atoms. Unfortunately, structural formulas are difficult to type/write and take up a lot of space. 3,4-Dimethyl-2-pentene c. 1,6-Heptadiene d. l-Buten-3-yne To make it graphically unique, we’ve added wide alternates to the uppercase, numerals and some symbols. information contact us at info@libretexts.org, status page at https://status.libretexts.org. Give the molecular formula, the structural formula, the condensed structural formula, and the abbreviated planar formula for octane. CHEM120 OL, Week 5 Lab Condensed Structural Formula: CH 3 CCH Condensed Structural Formula: CH 3 CH 3 Exploration 2: Identification of Functional Groups Part 2A: Building functional groups Functional groups alter the properties of hydrocarbons. Looking for condensed structural formula? Re-write the partial structural formula showing how these atoms are bonded to the carbon backbone (skeleton). Lv 7. Chemists often use condensed structural formulas to alleviate these problems. Step 6:This molecule contains branches or side-chains: (a) Condense the structure for each branch or side-chain as for the carbon backbone: (b) We can see that there are actually four CH3 groups bonded to the same carbon atom, so we use parantheses to enclose this group of atoms: (CH3), (c) This CH3 group occurs four times on the same carbon atom, so we use a subscript number to indicate the number of times this group occurs at that position: (CH3)4. B. what is the condensed structural formula for 2-methylpropane? Step 4: Re-draw the formula by replacing the identified groups of atoms in the 2-dimensional structural formula with their condensed structure, or semi-structural formula. Ketones and Aldehydes. The formula of the five-carbon alkane pentane is C 5 H 12 so the difference in hydrogen content is 4. Below is an example of a more complicated molecule. Fri Sep 11, 2020 at 10:43 am. All other types of atoms are shown and hydrogens bonded to atoms other than carbon are shown. Answer Save. CH3CH(CH3)CH3. Anonymous. The new condensed structural formula, or semi-structural formula, becomes (CH3)2CH2. Write condensed structural formulas for alkanes given complete structural formulas. Another more condensed way of writing structural formula is when there are two CH 2 groups in the middle of the molecule by having (CH 2) 2 in the middle of the structural formula. We haven't shown all of the bonds here but this structure has the same information as the Lewis structure on the left. Unless otherwise noted, LibreTexts content is licensed by CC BY-NC-SA 3.0. This molecule contains three groups of atoms, CH3, CH2 and CH3: Step 4: Re-draw the formula by replacing the identified groups of atoms in the 2-dimensional structural formula with their condensed structure. We could condense this formula even further by recognising that the carbon atom of the CH2 group is the centre of the molecule and that there are 2 CH3 groups attached to it. To write the condensed structural formula, or semi-structural formula. The structural or you can say condensed formula of the given compound is shown in the attachment. 2-Methyl-2-heptanol b. Write a condensed structural formula for each of the following alcohols. Watch the recordings here on Youtube! Draw condensed structural formulas for the four isomeric alcohols and three isomeric ethers that have the molecular formula C4H10O. How will you … 1 decade ago. A condensed structural formula is a more compact way of drawing the structural formula of a molecule. The condensed formulas show hydrogen atoms right next to the carbon atoms to which they are attached, as illustrated for butane: Even more abbreviated is a line-angle formula, also called a skeletal structure, in which carbon atoms are implied at the corners and ends of lines, and each carbon atom is understood to be attached to enough hydrogen atoms to give each carbon atom four bonds. Chemists often use condensed structural formulas to alleviate these problems. The 2-dimensional structural formula shown below: Step 2: Identify the carbon backbone (or skeleton) and any branches or side-chains as well as functional groups such as halogen atoms in the structural formula. 1 0. Molecular Formula. How to solve: Using condensed structural formulas, write the balanced equation for the addition reaction of 2-pentene with Br2 . Find out information about condensed structural formula. Chapter 14 . Give the condensed formula for the compound represented by this line-angle structure: 4. Using the virtual resource build the extended structural formulas of the following compounds. Finally, on the right is the line-angle (skeletal) structure; notice that the bonds are shown, but not the carbons and not the hydrogens bonded to carbon. Organic Chemistry. The compound contains 25 carbons atoms and 52 hydrogen atoms. Structure and Synthesis of Alcohols. Search by Structure or Substructure. We use several kinds of formulas to describe organic compounds. So the condensed … The condensed structural formula, or semi-structural formula, above can be further condensed by recognising that the eight CH 2 groups occur in a long straight chain (no branches or side chains) so they could be represented as [CH 2] 8. Carboxylic Acids. Answer. In the middle is a version of the condensed structure, still showing some of the bonds, along with an even more condensed formula with no bonds. Chemistry: an Introduction to General, organic, and ethanol are virtual resource build the extended structural of! No ads = no free stuff for you we also acknowledge previous National Science support... The same molecular mass updates from: Powered by FeedBurner, 2-dimensional ( full ). Valence electrons up the hydrogens you will get eight give each carbon atom is understood to be attached to hydrogen. The bonds attaching them... and also, hexane with six double bonds, Esters,,. 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