   Chapter 4, Problem 38PS

Chapter
Section
Textbook Problem

To find the formula of a compound composed of iron and carbon monoxide, Fex(CO)yx, the compound is burned in pure oxygen to give Fe2O3 and CO2. if you burn 1.959 g of Fex(CO)y and obtain 0.799 g of Fe2O3 and 2.200 g of CO2, what is the empirical formula of Fex(CO)y?

Interpretation Introduction

Interpretation:

The empirical formula of Fex(CO)y should be determined.

Concept introduction:

• Empirical formula of a compound represents the smallest whole number relative ratio of elements in that compound.
• Amount of substance (in mole) can be calculated by using the following equation,

Numberofmole=GivenmassofthesubstanceMolarmass

• The molar mass of an element or compound is the mass in grams of 1 mole of that substance, and it is expressed in the unit of grams per mol (g/mol).
Explanation

When 1.959g of given sample is burned in oxygen, 0.799g of Fe2O3 and 2.200gofCO2 will obtain.

The reaction can be represented as

Fex(CO)yFe2O3+CO2

From the given masses the amount of Fe2O3 andCO2 can be calculated.

Thus, amount of Fe2O3 andCO2 isolated from the combustion of given compound are,

0.799gFe2O3×1molFe2O3159.69gFe2O3=0.0050molFe2O32.200gCO2×1molCO244.010gCO2=0.0499molCO2

For every mole of Fe2O3 isolated, 2molofFe must have been present in the given compound.

So,

0

Still sussing out bartleby?

Check out a sample textbook solution.

See a sample solution

The Solution to Your Study Problems

Bartleby provides explanations to thousands of textbook problems written by our experts, many with advanced degrees!

Get Started

What is the structure and function of the extracellular matrix?

Biology: The Dynamic Science (MindTap Course List)

What are the physiological effects of amphetamines on the body?

Chemistry for Today: General, Organic, and Biochemistry

True or false? Action potentials vary in their size

Biology: The Unity and Diversity of Life (MindTap Course List) 