Idk but you good at math?
The element Bromine is known as the chemical symbol Br2
The reaction is shown below, Acid protonates the carbonyl oxygen and makes the carbonyl carbon more electrophilic. Water attacks on activated carbonyl group and forms a tetrahedral intermediate.
Intermediate: Structure of Intermediate is shown both in 2-D and 3-D (below attached).
Carbonyl group is regenerated with the elimination of ethanol.
Reaction is as below, The final product is carboxylic acid.