Answered

A compound is analyzed and found to contain selenium and bromine. When a specific sample is
examined, it is found to contain 7.928 g of selenium and 32.072 g of bromine. What is the
empirical formula of this compound?
a. Se,Brg
b. SeBra
Sebra
d. Se,Br.​

Answer :

Neetoo

Answer:

Empirical formula is SeBr₄

Explanation:

Given data:

Mass of selenium = 7.928 g

Mass of bromine = 32.072 g

Empirical formula = ?

Solution:

Number of gram atoms of Se = 7.928/ 78.96 = 0.1

Number of gram atoms of Br = 32.072 / 79.9 = 0.4

Atomic ratio:

            Se                    :               Br          

           0.1/0.1               :               0.4/0.1    

            1                      :                   4        

Se : Br = 1 : 4

Empirical formula is SeBr₄

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