Based on the analysis of the provided Organic Chemistry worksheet, the task is to identify and correct the mismatched structures for the listed compounds. The worksheet presents names and formulas correctly but contains errors in the drawn structures for two specific compounds: 1-butene and ethanol.
Here is a detailed breakdown of the corrections needed:
1.
1-Butene (C4H8):
*
Error: The structure drawn shows a double bond between the second and third carbon atoms (CH3-CH=CH-CH3), which is the correct structure for
2-butene.
*
Correction: The structure for 1-butene must have the double bond at the end of the carbon chain, between carbon 1 and carbon 2. The correct structural formula is
CH2=CH-CH2-CH3.
2.
Ethanol (C2H6O):
*
Error: The structure drawn shows an oxygen atom bonded to two methyl groups (CH3-O-CH3), which is the structure for
dimethyl ether.
*
Correction: The structure for ethanol must show a hydroxyl group (-OH) attached to one of the carbon atoms in an ethyl chain. The correct structural formula is
CH3-CH2-OH.
The other entries on the worksheet appear to be correct:
*
n-Butane (C4H10): The structure CH3-CH2-CH2-CH3 is correct.
*
Isobutane (C4H10): The structure for 2-methylpropane (a central carbon with three methyl groups and one hydrogen) is correct.
*
2-Butene (C4H8): The structure CH3-CH=CH-CH3 is correct.
*
Methanol (CH4O): The structure CH3-OH is correct.
In summary, the problem requires correcting the structures for 1-butene and ethanol to match their respective names and molecular formulas.
Parent Tip: Review the logic above to help your child master the concept of organic chemistry printables.
