Answered: In a reaction involving iron, Fe, and…

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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Question

In a reaction involving iron, Fe, and oxygen, O. it was determined that 4.166 grams of iron
reacted with 1.803 grams of oxygen. From this information, determine the empirical formula of
the compound that resulted.

Expert Solution

Step 1

We are given the masses of the two elements, iron and oxygen, as 4.166 g and 1.803 g respectively. Recalling their molar masses as 56 g/mol and 16 g/mol respectively, we can compute the number of moles of each element present:

Fe=(4.166 g)/(56 g/mol)=0.074 mol

O=(1.803 g)/(16 g/mol)=0.113 mol

$Fe : \frac{4.166 g}{56 g/mol} = 0.074 mol O : \frac{1.803 g}{16 g/mol} = 0.113 mol$

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