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### Topic: Structural formula  (Read 19649 times)

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#### crichtonracing

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##### Structural formula
« on: April 19, 2009, 08:45:32 PM »
How do I write a complete structural formula for this:

NH3 + C4H9COOH -> C4H9CONH2 + H2O

#### UG

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##### Re: Structural formula
« Reply #1 on: April 19, 2009, 08:59:05 PM »
What do you mean?    Can you elaborate?

#### UG

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##### Re: Structural formula
« Reply #2 on: April 19, 2009, 09:19:26 PM »
You mean like:

NH3 + C4H9COOH  C4H9CONH2 + H2O

#### crichtonracing

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##### Re: Structural formula
« Reply #3 on: April 19, 2009, 10:00:40 PM »
See what I mean...this book is super confusing. "Write a complete structural formula equation for each of the following reactions:"

1. NH3 + C4H9COOH C4H9CONH2 + H2O
2. C5H12 + O2 CO2 + H2O

#### crichtonracing

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##### Re: Structural formula
« Reply #4 on: April 19, 2009, 10:03:03 PM »

#### UG

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##### Re: Structural formula
« Reply #5 on: April 19, 2009, 10:05:16 PM »
In that case I believe you have to draw their structures like in my second post.

I.e, drawn like shown in the link: C4H9COOH

#### crichtonracing

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##### Re: Structural formula
« Reply #6 on: April 19, 2009, 10:20:28 PM »
But it says "write," this is so confusing. Am I overthinking this stuff? Would I have to draw out everything for that reaction?

H        H  H  H  H  =O
example: H N + H  C  C  C  C   C   OH    etc..
H        H  H  H  H

#### UG

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##### Re: Structural formula
« Reply #7 on: April 19, 2009, 11:13:50 PM »
Yes, I believe that is what you have to do.

#### AWK

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##### Re: Structural formula
« Reply #8 on: April 20, 2009, 01:12:05 AM »
Organic chemist usually use a semistructural formulas, eg:
NH3 + CH3CH2CH2CH2COOH = CH3CH2CH2CH2CONH2 + H2O
Note - pentanoic acid has a few structural isomers
Look at Wikipedia
AWK

#### cliverlong

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##### Re: Structural formula
« Reply #9 on: April 20, 2009, 03:56:29 AM »

#### xtine

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##### Re: Structural formula
« Reply #10 on: May 11, 2009, 02:53:48 PM »
Hello,

I'm working on this exact same question! It's driving me insane! I was wondering if you had any luck with figuring it out? I was doing so well in units 1 and 2...Now I'm completely STUCK! Please help if you can!?

Write a complete structural formula equation for each of the following reactions. First, name the reaction, and then name the reactants and products.

a) C3 H6 + Cl2 (g) ---> C3 H6 Cl2

b) NH3 + C4 H9 COOH ---> C4 H9 CONH2 + H2O

c) C5H12 + O2 ---> CO2 + H2O