1) Explain why propan-1-ol has the number "1" in the name.
-The number is there to show where the OH must go.
2) Say why ethanol does not have a number in its name.
-Something to do with the amount of carbons ??
Butan-1-ol has several isomers. Give the meaning of the term "isomer".
3) Draw two isomers of butan-1-ol.(what's the other)?
H H OH H
| | | |
H- C - C - C - C-H
| | | |
H H H H
Could someone please look over this, and help me?
1) Explain why propan-1-ol has the number "1" in the name.
-The number is there to show where the OH must go.good answer
2) Say why ethanol does not have a number in its name.
-Something to do with the amount of carbons ?? Actually, this question is supposed to make you think about the answer you gave to #1. #1 is numbered because of the system being used and the #1 tells us the OH (alcohol) group (called -ol in the system name) is on the #1 carbon. For ethanol, there "is no system" in that this is a trivial name, just like methanol, ethanol, propanol, butanol, etc.. Ethanol is a trivial name AND it has been around so long people KNOW where the OH group is.
Butan-1-ol has several isomers. Give the meaning of the term "isomer". An isomer of betan-1-ol will have the same empirical formula (C4H10O) but different structural formulas.
3) Draw two isomers of butan-1-ol.(what's the other)?
H H OH H
| | | |
H- C - C - C - C-H
| | | |
H H H H
Spacing is a problem on these boards. I'll try to draw the two.
CH3CH2CH2CH2OH is one.
CH3CH2CH(OH)CH3 is another.
Sure, I'd be happy to help you!
1) Propan-1-ol is named using the "1" to indicate the position of the OH group. In organic chemistry, when a compound has multiple functional groups or multiple substituents, it is important to specify the position of each group or substituent. In the case of propan-1-ol, the "1" indicates that the OH group is attached to the first carbon atom of the propane chain.
2) Ethanol does not have a number in its name because it only has one carbon atom (C2H5OH). Since there is only one possible position for the hydroxyl group (OH), there is no need to specify the position with a number.
3) Isomers are compounds that have the same molecular formula but different structural arrangements or connectivity. In other words, they have the same atoms but arranged in different ways. In the case of butan-1-ol, it can have different structural isomers depending on how the atoms are connected.
Here are two examples of isomers of butan-1-ol:
Isomer 1:
H H OH H
| | | |
H- C - C - C - C-H
| | | |
H H H H
Isomer 2:
H OH H H
| | | |
H- C - C - C - C-H
| | | |
H H H H
These two isomers have the same molecular formula (C4H10O) but different structural arrangements. One has the OH group attached to the first carbon atom, while the other has it attached to the second carbon atom.