Question

Consider the following balanced equation:

2 Co(s) + 3 Br₂(l) → 2 CoBr₃(s)

How many moles of cobalt(III) bromide are obtained when 11.2 moles of bromine react with excess solid cobalt? Assume the reaction is 100% efficient.

Answer 1

à Co (s) + 3 B (1) 2 Co B, (c) According to given equabion, 2 meles Cabalt (salid) Teads with 3 moles Bromine product Cos to give 2 moles of using ercess solid Cobalt, we an Say that 3 moles Bromine (liqid) gives &moles of product Co B AS we are 9ives moles Co Bvs 3 moles Br ot 1-2 moles By Fives moler of Co PY3 X3 1-2 X2 11.2 X2 7.47 mel 11 3 (oY)

(or) 2 moles Br gives 2 meles Co B I mol By gives 2/2 moles Co B II-2 mol BY giveg 11-2 X mel Co BY3 Angwer: 7.47 mol of Co Br