?For C5 H10 O What is the emperical formula? What is molecular formula? What is

ID: 1060025 • Letter: #

Question

?For C5 H10 O

What is the emperical formula?

What is molecular formula?

What is the name of compound?

What is the rationale of NMR (which signals are single, doublet triplets ).

What is the rationale of the IR spectrum (what is it based on its chemical shifts, i.e. alkane,alkene, aldehyde, ketone, etc)?

I believe it is 2-pentanone and that the structure is what i drew on the first page. Please help me figure out the questions!

CH 33 L 12.0 11.0 10.0 90 80 7.0 60 50 40 30 20 X parts per Million LH

What is the emperical formula?

C5H10O, since Oxygen has already 1 coefficient

What is molecular formula?

Most likely the same, since this is a pretty large molecule, C5H10O

We require mass and mole data for calculation, but this is most likely the moelcular formula

What is the rationale of NMR (which signals are single, doublet triplets ).

there are only 2 types of Hydrogens

2 hydrogens that are pretty electronegative

3 hydrogens which are not...

this is a typical exmaple of:

CH3-CH2 - C - "R" - CH2 - CH3 group

in which R is a functional group

What is the rationale of the IR spectrum (what is it based on its chemical shifts, i.e. alkane,alkene, aldehyde, ketone, etc)?

IR specturb has stron peaks in 2900-2980 area...

IR has a strong peak in 1720 peak, which is typical for C=O carbonyl group

this is most likely a ketone

What is the name of compound?

This is most likely

3-pentanone

th eoxygen must go in the middle of the molecule

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