So what are those two other things? Draw a bond-line structure for each of the following compounds: Condensed Structural Formula Practice Problems, See all problems in Condensed Structural Formula, video lessons to learn Condensed Structural Formula, Condensed Structural Formula practice problems, Organic Chemistry - Solomons 10th Edition practice problems. It has to do with what is connected to what. Or whatever. 1. What scientific concept do you need to know in order to solve this problem? Can you guys think about it? Plus, get practice tests, quizzes, and personalized coaching to help you succeed. (No fancy pictures or drawings). Then you think, “Oh, this isn't so bad.”
The way we need to show this is that the O is actually connected to the carbon first and then the carbon is connected to three H's, right? You would just write it out according to the connectivity. My speculation is that the logic behind this is that professors and chemists wanted a way to represent these molecules using only a text editor. Single bonds can rotate freely, so let’s not spend lots of time worrying about the exact angles you drew. Let's go ahead and look at that. That carbon needs to have four things attached to it. If you were to go ahead and draw that, you would see that I have an H here and then I have CH3 here and then I have CH3 here. 20c. Drawing Skeletal Structures Practice Questions for Organic Compounds- Test your understanding and skills on how to draw organic chemistry molecules in simple line structure or skeletal structure. Our tutors have indicated that to solve this problem you will need to apply the Condensed Structural Formula concept. Enter your friends' email addresses to invite them: If you forgot your password, you can reset it. I hope so. Let's start off with the full condensed structure. So now let's look at one that's a little bit easier and that's the condensed mixed structure. 18 - Reactions of Aromatics: EAS and Beyond, Ch. By registering, I agree to the Terms of Service and Privacy Policy, Condensed Structural Formula Video Lessons. But if you ever draw a structure, if you ever translate a structure that does not give carbon four bonds, then you know you made a mistake. Based on our data, we think this problem is relevant for Professor Zibuck's class at WAYNE. But sometimes you might see it as just CHOH. So go ahead and write that down. Our data indicates that this problem or a close variation was asked in Organic Chemistry - Solomons 10th Edition. Now, like I was saying, most professors are going to be nice and they're going to give you that double bond, but I'm just trying to show you just in case your professor decides to be a tool and not put that in there so that you guys will know that you can actually calculate it based on carbon having four bonds. B. But if I just write – instead of writing this let's say that I wrote O, CH3 like that, would that be correct? Now, notice that in this case I was nice and I put it in parenthesis. Does that make sense? Draw a bond-line structure for each of the following compounds: Write a condensed structural formula for each compound given here. Chemical Compounds Practice Quiz. So, in this case, I'm giving you CH3 with a 2 in the magenta brackets. D. 3 What if you want to describe a molecule, but you have nothing but a keyboard? That would mean that it would be linear. But if it's at the top or the bottom, just go to the right like normal because there's plenty of room to draw it. No, it's way easier just to put CH2 in parenthesis with a 100 underneath it and that means I'm going to repeat this unit 100 times. Our expert Organic tutor, Jonathan took 1 minute and 23 seconds to solve this problem. 20 - Carboxylic Acid Derivatives: NAS, Ch. Sorry about getting a little sidetracked, but I wanted you guys to see an example of that. Include all nonbonding electron pairs and hydrogen atoms. The use of parentheses is important: Example #1: How to draw condensed mixed structures. It's two-dimensional. Now a lot of this is straight forward meaning that you can see that this first CH3 here is represented by that CH3 there. What I have is, think about it, I have parenthesis. Or if you need more Condensed Structural Formula practice, you can also practice Condensed Structural Formula practice problems. Enrolling in a course lets you earn progress by passing quizzes and exams. How are you supposed to know that that is a double bond without being told that it's a double bond? That's this thing right there. Think that you're on a typewriter, would you be able to type a ring? As you can see, we're taking a bondline structure and we're going to represent it in just only one line of text. Rewrite each of the following using bond-line formulas: How many electrons in the correct Lewis structure of Cl3CCCH are NOT shared in covalent bonds?a. Now, some of you guys might be asking this question, “Johnny, but what if it's at the top or the bottom because that's not really – how about if it's in between.” So how about if I had a line right here and I wanted to put text there? That is this one over on the left-hand side. Give the condensed formula for the compound represented by this line-angle structure: 4. That's where they came upon the condensed structure. And then it has, let's look at it. Now let's go to one that's a little bit trickier. Does that make sense? Practice quiz + associated tutorial video This only applies when you're on the left side because if you're on the right side then it just makes sense the way it naturally is. 1 They're both attached to the same carbon. Write a condensed structural formula for each compound given here. Topics for the quiz include interpreting a condensed structural formula and a correct skeletal structural formula for a given compound. Alright, let's look at the logic here. Would you agree with that? Does it mean that all the CH3's are in a line? 's' : ''}}. Finally, as you can see, there's one more type of parenthesis. So I'm just going to put here rings. ; For example, both ethanol and dimethyl ether have the molecular formula #"C"_2"H"_6"O"#. In fact, all they had was typewriters. Let's just make sure that we know what we're talking about. What professor is this problem relevant for? Notice that I have CH2 bracket 3. The reason is because it looks like the O is attached to one of the H's. This worksheet and quiz will guide you along as you find out what you know about structural formula. Condensed Structural Formula Concept Videos. You can also practice Organic Chemistry - Solomons 10th Edition practice problems. That's going to happen over and over and over again. The left side is the part that's a little bit tricky. If you forgot your password, you can reset it. Password must contain at least one uppercase letter, a number and a special character. That doesn't make a lot of sense. All other trademarks and copyrights are the property of their respective owners. Or if you need more Condensed Structural Formula practice, you can also practice Condensed Structural Formula practice problems. So what you do with the condensed mixed structure is that the ring is the only thing that stays as bondline and then everything else that's branching off of it goes to condensed. Don't worry. Join thousands of students and gain free access to 63 hours of Organic videos that follow the topics your textbook covers. Concept #1: How to interpret condensed structures. Earn Transferable Credit & Get your Degree, Create your account to access this entire worksheet, A Premium account gives you access to all lesson, practice exams, quizzes & worksheets. As you can see what I do is I take this thing, convert it over here and now all of the branches coming off of the ring become a condensed formula. Example: How to draw condensed mixed structures. You have to put the letters backwards. Topics for the quiz include interpreting a condensed structural formula and a correct skeletal structural formula for a given compound. B. English, science, history, and more. Practice: Convert the condensed structure into a bondline structure. So now what is this weird line that I drew? That carbon has a part of the chain on the left and a part of the chain on the right. Concept: How to interpret condensed structures. 2. The reason is because I have a bond on the left, I have a bond on the right and then I must have two bonds that are missing. 12 - Alcohols, Ethers, Epoxides and Thiols, Ch. Select your preferences below and click 'Start' to give it a try! 26. © copyright 2003-2020 Study.com. Remember, the exact direction of your zig-zag pattern doesn’t matter as long as everything is connected correctly.