Concept explainers
Calcium oxide or quicklime (CaO) is used in steelmaking, cement manufacture, and pollution control. It is prepared by the thermal decomposition of calcium carbonate.
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.
Interpretation: The yearly release of
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,
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
Answer to Problem 21.40QP
There are about
Explanation of Solution
Consider the balanced equation.
Considering the given balanced equation, it is clear that one mole of
Determine the amount of
The amount of
The mass of
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Chapter 21 Solutions
Chemistry: Atoms First
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