Identify each of the following as a formula of an organic or inorganic compound. For an organic compound, indicate if represented as molecular formula, expanded, or condensed structural formula:
e. CH₃―CH₂―CH₂―CH₂―CH₃

Question

Identify each of the following as a formula of an organic or inorganic compound. For an organic compound, indicate if represented as molecular formula, expanded, or condensed structural formula:

e. CH₃―CH₂―CH₂―CH₂―CH₃

Accepted Answer

Hi, everyone. Welcome back. Let's look at our next problem. Our next problem says, determine if and then we have the H three and then we have dashes connecting six CH two groups. So a dash between each of those and then dash CH three. Is it organic or inorganic compound? Specify the type of formula provided molecular expanded or condensed structural. Then our answer choices are a inorganic molecular formula. B organic expanded formula C inorganic molecular formula or D organic condensed structural formula. So first, let's deal with the organic versus inorganic question. An organic compound is one that contains cc so carbon, carbon or carbon hydrogen bonds. And we can see that our molecule has only carbon and hydrogen. So it is organic in inorganic compounds would not have carbon in them. And our organic compounds can have other things. They can have oxygen, sulfur, phosphorus, nitrogen, but they have to have some carbon carbon or carbon hydrogen bonds. So we know our compound is organic, so we can eliminate choice. A which says inorganic and choice C which is inorganic. So now we need to look at the type of formula that were provided well, molecular formula would have only the elements that are present and the number of each element. So in this case, we don't have that we would have if it were like the formula, we would only have some form of CNHN or more particularly in the case of a, just an alkane like this, it would be C subscript, NH subscript two N plus two. But we can see we have carbon and hydrogen written out multiple times here. So it is definitely not a molecular formula. So we see again in choice A, that's wrong. Although we've already eliminated choice A. So there are two, we have left are just expanded versus condensed structural. Well, we see the dashes indicating bonds so that might tempt us to think of expanded. But an expanded formula shows all bonds between every atom. So we can see in this formula that we're given, we don't show the ch bonds, the CH threes and CH twos are written as a unit. So it's not an expanded structure because not every single bond is shown. So choice B cannot be correct since this is not an expanded formula. So we are left with condensed structural formula and that is what we have here. So in condensed structural formula, it shows how the atoms are connected such as these lines between or the dashes between CH three CH two CH two showing that there's bonds between those carmens, but it doesn't show all the bonds. So these CH three CH two are written as a group because it's pretty obvious how they will be attached to each other. For instance, if we had an amine group, it might just be written as NH two with a dash to the next carbon group. So this is indeed a condensed structural formula since it doesn't show every single bond, but we do have these lines showing connections so that we can see how different atoms are connected. So our answer here is choice d our molecule provided as an organic compound and we're provided with a condensed structural formula. See you in the next video.

Identify each of the following as a formula of an organic or inorganic compound. For an organic compound, indicate if represented as molecular formula, expanded, or condensed structural formula:
e. CH₃―CH₂―CH₂―CH₂―CH₃

Verified video answer for a similar problem:

Key Concepts

Organic Compounds

Structural Formulas

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Identify each of the following as a formula of an organic or inorganic compound. For an organic compound, indicate if represented as molecular formula, expanded, or condensed structural formula:e. CH3―CH2―CH2―CH2―CH3

Verified video answer for a similar problem:

Key Concepts

Organic Compounds

Structural Formulas

Hydrocarbons

Identify each of the following as a formula of an organic or inorganic compound. For an organic compound, indicate if represented as molecular formula, expanded, or condensed structural formula:
e. CH₃―CH₂―CH₂―CH₂―CH₃