The molecular weight of acetic acid ( HC₂H₃O₂), the acid in vinegar, is __________ amu (rounded to one decimal place). A)59.0 B)29.0 C)60.1 D)8.0 E)32.0

Question

Quizplus · Accepted Answer

To calculate the molecular weight of acetic acid, we need to add up the atomic weights of all the atoms in the molecule.

H: 1.01 x 4 = 4.04 
C: 12.01 x 2 = 24.02 
O: 16.00 x 2 = 32.00

Total molecular weight = 4.04 + 24.02 + 32.00 = 60.1 amu (rounded to one decimal place).

Therefore, the best choice is C.

The Molecular Weight of Acetic Acid ( HC2H3O2), the Acid

The Molecular Weight of Acetic Acid ( HC₂H₃O₂), the Acid