CHEMISTRY:PRIN.+REACTIONS-OWLV2 ACCESS
8th Edition
ISBN: 9781305079298
Author: Masterton
Publisher: Cengage Learning
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Chapter 22, Problem 59QAP
Interpretation Introduction
Interpretation:
The mass of propane required to burn should be determined.
Concept introduction:
The heat required to change the temperature of a substance is related to heat capacity of the substance by the expression as:
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The enthalpy of solution of an ionic compound can be calculated from its lattice enthalpy and the
enthalpies of hydration of the individual ions. Use the information shown below to complete the
requested calculations.
Quantity
Lattice energy of solid ammonium chloride
Lattice energy of solid ammonium nitrate
Enthalpy of hydration of the gaseous
ammonium ion
Enthalpy of hydration of the gaseous chloride
ion
Enthalpy of hydration of the gaseous nitrate
ion
Enthalpy Change (kJ/mol)
a. The enthalpy of solution of solid ammonium chloride (in
kJ/mol)
b. The enthalpy of solution of solid ammonium nitrate (in
kJ/mol)
705
646
-307
-381
-314
3. (a) The Lattice enthalpy for the solid ionic compound AgBr is +900. kJ/mole.
Write the chemical equation that corresponds to the Lattice Enthalpy for AgBr(s) in the space above.
Then explain in your own words why this is a large positive number.
(b) The hydration enthalpy for AgBris -821 kJ/mole.
Write the chemical equation that corresponds to the Hydration Enthalpy for AgBr(s) in the space above.
Then explain in your own words why this is a large negative number.
(c) Would you expect this compound to be soluble in water? Why/Why not? Calculate anything you need in
order to figure this out, and explain your answer.
2. All liquids have characteristic vapor pressure that vary with temperature. The characteristic vapor pressure for pure water at 22°C is 19.827 mm Hg and at 30.0°C is 31.824 mm Hg. Use these data to calculate the change in enthalphy per mole for the vaporization
Chapter 22 Solutions
CHEMISTRY:PRIN.+REACTIONS-OWLV2 ACCESS
Ch. 22 - Classify each of the following hydrocarbons as...Ch. 22 - Classify each of the following hydrocarbons as...Ch. 22 - Write the formula for (a) an alkene with two...Ch. 22 - Write the formula for (a) an alkyne with 16...Ch. 22 - Name the following alkanes.Ch. 22 - Name the following alkanes.Ch. 22 - Prob. 7QAPCh. 22 - Prob. 8QAPCh. 22 - The following names are incorrect; draw a...Ch. 22 - Prob. 10QAP
Ch. 22 - Prob. 11QAPCh. 22 - Prob. 12QAPCh. 22 - Prob. 13QAPCh. 22 - Name the following compounds as derivatives of...Ch. 22 - Prob. 15QAPCh. 22 - Prob. 16QAPCh. 22 - Prob. 17QAPCh. 22 - Prob. 18QAPCh. 22 - Prob. 19QAPCh. 22 - Prob. 20QAPCh. 22 - Prob. 21QAPCh. 22 - Prob. 22QAPCh. 22 - Prob. 23QAPCh. 22 - Arrange these compounds in order of increasing...Ch. 22 - The Kbfor ethylamine (CH3CH2NH2) is 4.3104 . What...Ch. 22 - When aniline, C6H5NH2(Kb=7.41010) , reacts with a...Ch. 22 - When ethylamine, a weak base (Kb=4.3104) , reacts...Ch. 22 - When the conjugate acid of aniline, C6H5NH3+,...Ch. 22 - Draw the structural isomers of the alkane C6H14.Ch. 22 - Prob. 30QAPCh. 22 - Prob. 31QAPCh. 22 - Draw the structural isomers of C3H6Cl2 in which...Ch. 22 - Prob. 33QAPCh. 22 - Prob. 34QAPCh. 22 - Prob. 35QAPCh. 22 - Prob. 36QAPCh. 22 - Draw structures for all the alcohols with...Ch. 22 - Prob. 38QAPCh. 22 - Prob. 39QAPCh. 22 - Prob. 40QAPCh. 22 - Maleic acid and fumaric acid are the cis- and...Ch. 22 - Prob. 42QAPCh. 22 - Which of the following can show optical isomerism?...Ch. 22 - Prob. 44QAPCh. 22 - Prob. 45QAPCh. 22 - Prob. 46QAPCh. 22 - Prob. 47QAPCh. 22 - Prob. 48QAPCh. 22 - Prob. 49QAPCh. 22 - Prob. 50QAPCh. 22 - Prob. 51QAPCh. 22 - Prob. 52QAPCh. 22 - Calculate [H+] and the pH of a 0.10 M solution of...Ch. 22 - Prob. 54QAPCh. 22 - The general formula of an alkane is CnH2n+2 . What...Ch. 22 - Prob. 56QAPCh. 22 - Prob. 57QAPCh. 22 - Prob. 58QAPCh. 22 - Prob. 59QAPCh. 22 - Write an equation for the reaction of chloroacetic...
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- Are changes in state physical or chemical changes? Explain. What type of forces must be overcome to melt or vaporize a substance (are these forces intramolecular or intermolecular)? Define the molar heat of fusion and molar heat of vaporization. Why is the molar heat of vaporization of water so much larger than its molar heat of fusion? Why does the boiling point of a liquid vary with altitude?arrow_forwardMaple syrup sap is 3% sugar (sucrose) and 97% water bymass. Maple syrup is produced by heating the sap toevaporate a certain amount of the water. (a) Describe what happens to the composition and boilingpoint of the solution as evaporation takes place. (b) A rule of thumb among maple syrup producers is thatthe finished syrup should boil about 4 C higher than theoriginal sap being boiled. Explain the chemistry behindthis guideline. (c) If the finished product boils 4 C higher than the originalsap, calculate the concentration of sugar in the finalproduct. Assume that sugar is the only solute and theoperation is done at 1 atm pressure.arrow_forward3. (a) The Lattice enthalpy for the solid ionic compound AgBr is +900. kJ/mole. Write the chemical equation that corresponds to the Lattice Enthalpy for AgBr(s) in the space above. Then explain in your own words why this is a large positive number. (b) The hydration enthalpy for AgBr is -821 kJ/mole. Write the chemical equation that corresponds to the Hydration Enthalpy for AgBr(s) in the space above. Then explain in your own words why this is a large negative number.…arrow_forward
- Arrange the following in terms of increasing boiling point using (<) less than equality.arrow_forwardWhat can you conclude about the relative magnitudes of the lattice energy of ammonium chloride and its heat of hydration? The lattice energy is smaller greater in magnitude than the heat of hydration.arrow_forwardA chemistry student is given 5.00 L of a clear aqueous solution at 25.° C. He is told an unknown amount of a certain compound X is dissolved in the solution. The student allows the solution to cool to 15.° C. At that point, the student sees that a precipitate has formed. He transfers the liquid to a clean new beaker and throws away the precipitate. The student then evaporates the water from the liquid in the new beaker under vacuum. It weighs 1.00 kg. Using only the information above, can you calculate the solubility of Xin water at 15.° C ? If you said yes, calculate it. Be sure your answer has a unit symbol and the right number of significant digits. 0 yes no ☐ x10 X Olo S U 2arrow_forward
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