[cloudy1290]

The reaction of phenol with bromine molecule gives 2,4,6-tribromophenol. How many moles of bromine molecule are required in order to get 298g of 2,4,6-tribromophenol from 94g of phenol? The reaction is supposed to proceed theoretically. Here, atomic masses are H =1 , C=12 , O=16, Br= 80

How should i start
is this reaction right?
2C6H5OH + 3Br2 ---> 2C6H3OBr3

[AWK]

This reaction is not correct for calculation of stoichiometry. Every textbook deals with this reaction.

[cloudy1290]

C6H5OH + 3Br2 ---> C6H3OBr3 + 3HBr

from Br2 and C6H3OBr3, i calculated and got 2.7 which is answer

Why do they give mass of phenol? does it tell something?

[AWK]

Now your reaction is correct and answer also is correct.
The problem concerns limiting reagent.