Chemistry: Atoms First
Chemistry: Atoms First
3rd Edition
ISBN: 9781259638138
Author: Julia Burdge, Jason Overby Professor
Publisher: McGraw-Hill Education
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Textbook Question
Chapter 21, Problem 21.40QP

Calcium oxide or quicklime (CaO) is used in steelmaking, cement manufacture, and pollution control. It is prepared by the thermal decomposition of calcium carbonate.

C a c O 3 ( s ) C a O ( s ) + C O 2 ( g )

Calculate the yearly release of CO2 (in kilograms) to the atmosphere if the annual production of CaO in the United States is 1.7 × 1010 kg.

Expert Solution & Answer
Check Mark
Interpretation Introduction

Interpretation: The yearly release of CO2 into the atmosphere when given amount of CaO is produced in US should be determined using given balanced equation.

Concept Introduction:

Balanced Equation: A chemical reaction is considered as balanced equation if all the number of atoms, the charge and the mass of elements on both reactant and the product side are equal in the reaction.

Moles: It is the number of particles present in the given specific substance. The formula used to identify the moles present in given mass of a compound is as follows,

xmoles=GivenmassofthesampleMolecularmassofthesample

Molar mass: It is the total mass of the substance including all the number and the mass of the elements present in substance.

Greenhouse effect:

The heat near the earth surface gets trapped by the gases present in the earth atmosphere. The carbon dioxide is the primary gas that traps more heat. The earth’s atmosphere contains gases that radiate energy in all directions in which the part of the energy gets imparted into the earth surface.

The imparted energy makes the earth surface to have high temperature.

Conditions that greenhouse gas should fulfil is as follows,

The gas is considered as greenhouse gas if it possesses dipole moment or the vibrational motions of the gases should create some temporary dipole moment.

Atmosphere: The atmosphere is defined as air that is layer of gases which surrounds the earth due to gravity of earth.

The earth atmosphere consists of layers such as thermosphere, mesosphere, stratosphere and troposphere depending on the temperature and its composition.

To determine: The amount of CO2 released during CaO production under given conditions.

Answer to Problem 21.40QP

There are about 1.3×1010kgofCO2 released during production of 1.7×1010kgofCaO considering the given balanced equation.

Explanation of Solution

Consider the balanced equation.

xmoles=GivenmassofthesampleMolarmassofthesample1molesofCaO=1.7×1013gofCaO56.08g/molofCaO1molesofCO2=x gofCO244.01g/molofCO2Hence,1.7×1013gofCaO56.08g/molofCaO=x gofCO244.01g/molofCO2

Considering the given balanced equation, it is clear that one mole of CaCO3 gives one mole of CaO and CO2 which shows that one mole of CaO is equal to one mole of CO2 .

Determine the amount of CO2 released.

xmoles=GivenmassofthesampleMolarmassofthesampleMassofCO2=1.7×1013gofCaO56.08g/molofCaO×44.01g/molCO2=1.3×1013gofCO2=1.3×1010kgofCO21kg=1000g=103g

The amount of CO2 released during the production of CaO is obtained by substituting the given values like mass of CaO and the molar mass values of CaO and CO2

Conclusion

The mass of CO2 released during CaO production is determined.

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Chapter 21 Solutions

Chemistry: Atoms First

Ch. 21.5 - Prob. 21.5.1SRCh. 21.5 - Prob. 21.5.2SRCh. 21.8 - Prob. 21.3WECh. 21.8 - Prob. 3PPACh. 21.8 - Prob. 3PPBCh. 21.8 - Prob. 3PPCCh. 21.8 - Prob. 21.8.1SRCh. 21 - Prob. 21.1QPCh. 21 - Prob. 21.2QPCh. 21 - Prob. 21.3QPCh. 21 - Prob. 21.4QPCh. 21 - Prob. 21.5QPCh. 21 - Prob. 21.6QPCh. 21 - Prob. 21.7QPCh. 21 - Prob. 21.8QPCh. 21 - Prob. 21.9QPCh. 21 - Prob. 21.10QPCh. 21 - Prob. 21.11QPCh. 21 - Prob. 21.12QPCh. 21 - Prob. 21.13QPCh. 21 - Prob. 21.14QPCh. 21 - Prob. 21.15QPCh. 21 - Prob. 21.16QPCh. 21 - Prob. 21.17QPCh. 21 - Prob. 21.18QPCh. 21 - Prob. 21.19QPCh. 21 - Prob. 21.20QPCh. 21 - Prob. 21.21QPCh. 21 - Prob. 21.22QPCh. 21 - Prob. 21.23QPCh. 21 - Prob. 21.24QPCh. 21 - Prob. 21.25QPCh. 21 - Prob. 21.26QPCh. 21 - Prob. 21.27QPCh. 21 - Prob. 21.28QPCh. 21 - Prob. 21.29QPCh. 21 - Prob. 21.30QPCh. 21 - Prob. 21.31QPCh. 21 - Prob. 21.32QPCh. 21 - Prob. 21.33QPCh. 21 - Prob. 21.34QPCh. 21 - Prob. 21.35QPCh. 21 - Prob. 21.36QPCh. 21 - Prob. 21.37QPCh. 21 - Prob. 21.38QPCh. 21 - Prob. 21.39QPCh. 21 - Calcium oxide or quicklime (CaO) is used in...Ch. 21 - Prob. 21.41QPCh. 21 - Prob. 21.42QPCh. 21 - Prob. 21.43QPCh. 21 - Prob. 21.44QPCh. 21 - Prob. 21.45QPCh. 21 - Prob. 21.46QPCh. 21 - Prob. 21.47QPCh. 21 - Prob. 21.48QPCh. 21 - Prob. 21.49QPCh. 21 - Prob. 21.50QPCh. 21 - In which region of the atmosphere is ozone...Ch. 21 - The gas-phase decomposition of peroxyacetyl...Ch. 21 - Prob. 21.53QPCh. 21 - Prob. 21.54QPCh. 21 - Prob. 21.55QPCh. 21 - Prob. 21.56QPCh. 21 - Prob. 21.57QPCh. 21 - Prob. 21.58QPCh. 21 - A concentration of 8.00 102 ppm by volume of CO...Ch. 21 - Prob. 21.60QPCh. 21 - Briefly describe the harmful effects of the...Ch. 21 - Prob. 21.62QPCh. 21 - Prob. 21.63QPCh. 21 - Prob. 21.64QPCh. 21 - Prob. 21.65QPCh. 21 - Prob. 21.66QPCh. 21 - Prob. 21.67QPCh. 21 - A glass of water initially at pH 7.0 is exposed to...Ch. 21 - Prob. 21.69QPCh. 21 - Prob. 21.70QPCh. 21 - Describe the removal of SO2 by CaO (to form CaSO3)...Ch. 21 - Which of the following settings is the most...Ch. 21 - Prob. 21.73QPCh. 21 - Peroxyacetyl nitrate (PAN) undergoes thermal...Ch. 21 - Prob. 21.75QPCh. 21 - Prob. 21.76QPCh. 21 - The carbon dioxide level in the atmosphere today...Ch. 21 - A 14-m by 10-m by 3.0-m basement had a high radon...Ch. 21 - Prob. 21.79QPCh. 21 - A person was found dead of carbon monoxide...Ch. 21 - Prob. 21.81QPCh. 21 - As stated in the chapter, carbon monoxide has a...Ch. 21 - Prob. 21.83QPCh. 21 - Prob. 21.84QPCh. 21 - Prob. 21.85QPCh. 21 - Prob. 21.86QP
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