Analysis of a sample of an oxide of irons finds that there are 87.47 g of iron and 12.53 g of oxygen present. determine the empirical formula of the compound. what is iron's subscript in the empirical formula?

Empirical formula:

Fe₂O

Subscript of iron in empirical formula is 2.

Explanation:

Empirical formula:

It is the simplest formula  that gives the smallest whole number ratio between the atoms of elements present in a compound.

Given data:

Mass of iron = 87.47 g

Mass of oxygen = 12.53 g

Empirical formula = ?

Solution:

Number of gram atoms of iron = 87.47 /55.845 =1.57 grams atoms

Number of gram atoms of oxygen = 12.53 / 16 = 0.78 grams atoms

Atomic ratio:

Fe                   :          O

1.57/0.78        :       0.78/0.78  

     2               :              1                    

Fe : O = 2  :  1

Empirical formula:

Fe₂O

Subscript of iron in empirical formula is 2.

hurricanes form when warm, moist air from the ocean surface quickly rises into the atmosphere and forms storm clouds and rain. when the clouds are formed, heat is released which warms the cool air in the upper regions of the atmosphere so that the cycle can continue. which two phases of the water cycle are repeated in this process?