
(a)
Interpretation:
From the given possible replacement for CFCs are HFC-152a and HFC-23, the one which appears to be the better replacement has to be determined by considering only GWP.
Concept introduction:
Global warming is a serious environmental issue, in which there is an increase in the overall temperature of the earth by various factors.
Greenhouse gases are one type of gas which traps the heat within the system and thus it increases the overall temperature of the earth resulting global warming.
Examples:
The ability of a trace gas to cause global warming is described by its Global warming potential (GWP) and it is related to the lifetime of a gas in the atmosphere as well as the ability of a gas to absorb IR radiation.
The lifetime of a gas in the atmosphere and its ability of a gas to absorb IR radiation are the two properties which are included in the calculation of the global warming potential
(b)
Interpretation:
The considerations which are used to choose a better replacement for CFC has to be provided.
Concept introduction:
Global warming is a serious environmental issue, in which there is an increase in the overall temperature of the earth by various factors.
Greenhouse gases are one type of gas which traps the heat within the system and thus it increases the overall temperature of the earth resulting global warming.
Examples:
The ability of a trace gas to cause global warming is described by its Global warming potential (GWP) and it is related to the lifetime of a gas in the atmosphere as well as the ability of a gas to absorb IR radiation.
The lifetime of a gas in the atmosphere and its ability of a gas to absorb IR radiation are the two properties which are included in the calculation of the global warming potential

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Chapter 4 Solutions
Chemistry In Context
- Calculate the pH and the pOH of each of the following solutions at 25 °C for which the substances ionize completely: (a) 0.000259 M HClO4arrow_forwardWhat is the pH of a 1.0 L buffer made with 0.300 mol of HF (Ka = 6.8 × 10⁻⁴) and 0.200 mol of NaF to which 0.160 mol of NaOH were added?arrow_forwardDetermine if the following salt is neutral, acidic or basic. If acidic or basic, write the appropriate equilibrium equation for the acid or base that exists when the salt is dissolved in aqueous solution. If neutral, simply write only NR. Be sure to include the proper phases for all species within the reaction. NaN₃arrow_forward
- A. Draw the structure of each of the following alcohols. Then draw and name the product you would expect to produce by the oxidation of each. a. 4-Methyl-2-heptanol b. 3,4-Dimethyl-1-pentanol c. 4-Ethyl-2-heptanol d. 5,7-Dichloro-3-heptanolarrow_forwardWhat is the pH of a 1.0 L buffer made with 0.300 mol of HF (Ka = 6.8 × 10⁻⁴) and 0.200 mol of NaF to which 0.160 mol of NaOH were added?arrow_forwardCan I please get help with this.arrow_forward
- Determine if the following salt is neutral, acidic or basic. If acidic or basic, write the appropriate equilibrium equation for the acid or base that exists when the salt is dissolved in aqueous solution. If neutral, simply write only NR. Be sure to include the proper phases for all species within the reaction. N₂H₅ClO₄arrow_forwardPlease help me with identifying these.arrow_forwardCan I please get help with this?arrow_forward
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