Chemistry Atoms First2e2nd EditionOpenStax Publisher: OpenStax CollegeISBN: 9781947172647
Chemistry Atoms First2e
Solutions for Chemistry Atoms First2e
Problem 1E:
A burning match and a bonfire may have the same temperature, yet you would not sit around a burning...Problem 2E:
Prepare a table identifying several energy transitions that take place during the typical operation...Problem 4E:
Calculate the heat capacity, in joules and in calories per degree, of the following: (a) 28.4 g of...Problem 5E:
Calculate the heat capacity, in joules and in calories per degree, of the following: (a) 45.8 g of...Problem 6E:
How much heat, in joules and in calories, must be added to a 75.0g iron block with a specific heat...Problem 7E:
How much heat, in joules and in calories, is required to heat a 28.4-g (1-oz) ice cube from 23.0 C...Problem 9E:
If 14.5 kJ of heat were added to 485 g of liquid water, how much would its temperature increase?Problem 10E:
A piece of unknown substance weighs 44.7 g and requires 2110 J to increase its temperature from 23.2...Problem 11E:
A piece of unknown solid substance weighs 437.2 g. and requires 8460 J to increase its temperature...Problem 12E:
An aluminum kettle weighs 1.05 kg. (a) What is the heat capacity of the kettle? (b) How much heat is...Problem 13E:
Most people find waterbeds uncomfortable unless the water temperature is maintained at about 85 F....Problem 14E:
A 500-mL bottle of water at room temperature and a 2-L bottle of water at the same temperature were...Problem 15E:
Would the amount of heat measured for the reaction in Example 9.5 be greater, lesser, or remain the...Problem 16E:
Would the amount of heat absorbed by the dissolution in Example 9.6 appear greater, lesser, or...Problem 17E:
Would the amount of heat absorbed by the dissolution in Example 9.6 appear greater, lesser, or...Problem 18E:
How many milliliters of water at 23 C with a density of 1.00 g/mL must be mixed with 180 mL (about 6...Problem 19E:
How much will the temperature of a cup (180 g) of coffee at 95 C be reduced when a 45 g silver spoon...Problem 20E:
A 45-g aluminum spoon (specific heat 0.88 J/g C) at 24 C is placed in 180 mL (180 g) of coffee at 85...Problem 21E:
The temperature of the cooling water as it leaves the hot engine of an automobile is 240 F. After it...Problem 22E:
A 70.0-g piece of metal at 80.0 C is placed in 100 g of water at 22.0 C contained in a calorimeter...Problem 23E:
If a reaction produces 1.506 kJ of heat, which is trapped in 30.0 g of water initially at 26.5 C in...Problem 24E:
A 0.500-g sample of KCI is added to 50.0 g of water in a calorimeter (Figure 9.12). If the...Problem 25E:
Dissolving 3.0 g of CaCl2(s) in 150.0 g of water in a calorimeter (Figure 9.12) at 22.4 C causes the...Problem 26E:
When 50.0 g of 0.200 M NaCl(aq) at 24.1 C is added to 100.0 g of 0.100 M AgNO3(aq) at 24.1 C in a...Problem 27E:
The addition of 3.15 g of Ba(OH)28H2O to a solution of 1.52 g of NH4SCN in loo g of water in a...Problem 28E:
The reaction of 50 mL of acid and 50 mL of base described in Example 9.5 increased the temperature...Problem 29E:
If the 3.21 g of NH4NO3 in Example 9.6 were dissolved in 100.0g of water under the same conditions,...Problem 30E:
When 1.0 g of fructose, C6H12O6(s), a sugar commonly found in fruits, is burned in oxygen in a bomb...Problem 31E:
When a 0.740-g sample of trinitrotoluene (TNT), C7H5N2O6, is burned in a bomb calorimeter, the...Problem 32E:
One method of generating electricity is by burning coal to heat water, which produces steam that...Problem 33E:
The amount of fat recommended for someone with a daily diet of 2000 Calories is 65 g. What percent...Problem 34E:
A teaspoon of the carbohydrate sucrose (common sugar) contains 16 Calories (16 kcal). What is the...Problem 35E:
What is the maximum mass of carbohydrate in a 6-oz serving of diet soda that contains less than 1...Problem 36E:
A pint of premium ice cream can contain 1100 Calories. What mass of fat, in grams and pounds, must...Problem 37E:
A serving of a breakfast cereal contains 3 g of protein, 18 g of carbohydrates, and 6 g of fat. What...Problem 38E:
Which is the least expensive source of energy in kilojoules per dollar: a box of breakfast cereal...Problem 39E:
Explain how the heat measured in Example 9.5 differs from the enthalpy change for the exothermic...Problem 40E:
Using the data in the check your learning section of Example 9.5, calculate H in kJ/mol of...Problem 41E:
Calculate the enthalpy of solution( H for the dissolution) per mole of NH4NO3 under the conditions...Problem 42E:
Calculate H for the reaction described by the equation. (Hint : use the value for the approximate...Problem 43E:
Calculate the enthalpy of solution ( H for the dissolution) per mole of CaCl2 (refer to Exercise...Problem 44E:
Although the gas used in an oxyacetylene torch (Figure 9.7) is essentially pure acetylene, the heat...Problem 45E:
How much heat is produced by burning 4.00 moles of acetylene under standard state conditions?Problem 46E:
How much heat is produced by combustion of 125 g of methanol under standard state conditions?Problem 47E:
How many moles of isooctane must be burned to produce loo U of heat under standard state conditions?Problem 48E:
What mass of carbon monoxide must be burned to produce 175 kJ of heat under standard state...Problem 49E:
When 2.50 g of methane burns in oxygen, 125 kJ of heat is produced. What is the enthalpy of...Problem 50E:
How much heat is produced when loo mL of 0.250 M HCl (density, 1.00 g/mL) and 200 mL of 0.150 M NaOH...Problem 51E:
A sample of 0.562 g of carbon is burned in oxygen in a bomb calorimeter, producing carbon dioxide....Problem 52E:
Before the introduction of chlorofluorocarbons, sulfur dioxide (enthalpy of vaporization, 6.00...Problem 53E:
Homes may be heated by pumping hot water through radiators. What mass of water will provide the same...Problem 54E:
Which of the enthalpies of combustion in Table 9.2 the table are also standard enthalpies of...Problem 56E:
Joseph Priestly prepared oxygen in 1774 by heating red mercury(II) oxide with sunlight focused...Problem 57E:
How many kilojoules of heat will be released when exactly 1 mole of manganese, Mn, is burned to form...Problem 58E:
How many kilojoules of heat will be released when exactly 1 mole of iron, Fe, is burned to form...Problem 59E:
The following sequence of reactions occurs in the commercial production of aqueous nitric acid:...Problem 60E:
Both graphite and diamond burn. C(s,graphite)+O2(g)CO2(g) For the conversion of graphite to diamond:...Problem 61E:
From the molar heats of formation in Appendix G, determine how much heat is required to evaporate...Problem 62E:
Which produces more heat? Os(s)2O2(g)OsO4(s)orOs(s)2O2(g)OsO4(g) for the phase change...Problem 64E:
Calculate H for the process Zn(s)+S(s)+202(g)ZnSO4(s) from the following information:...Problem 67E:
Calculate the standard molar enthalpy of formation of NO(g) from the following data:...Problem 68E:
Using the data in Appendix G, calculate the standard enthalpy change for each of the following...Problem 69E:
Using the data in Appendix G, calculate the standard enthalpy change for each of the following...Problem 70E:
The following reactions can be used to prepare samples of metals. Determine the enthalpy change...Problem 71E:
The decomposition of hydrogen peroxide, H2O2, has been used to provide thrust in the control jets of...Problem 72E:
Calculate the enthalpy of combustion of propane, C3H8(g), for the formation of H2O(g) and CO2(g)....Problem 73E:
Calculate the enthalpy of combustion of butane, C4H10(g) for the formation of H2O(g) and CO2(g). The...Problem 74E:
Both propane and butane are used as gaseous fuels. Which compound produces more heat per gram when...Problem 75E:
The white pigment TiO2 is prepared by the reaction of titanium tetrachioride, TiCl4, with water...Problem 76E:
Water gas, a mixture of H2 and CO2 is an important industrial fuel produced by the reaction of steam...Problem 77E:
In the early days of automobiles, illumination at night was provided by burning acetylene, C2H2....Problem 78E:
From the data in Table 9.2, determine which of the following fuels produces the greatest amount of...Problem 79E:
The enthalpy of combustion of hard coal averages 35 kJ/g, that of gasoline, 1.28105 kJ/gal. How many...Problem 80E:
Ethanol, C2H5OH, is used as a fuel for motor vehicles, particularly in Brazil. (a) Write the...Problem 81E:
Among the substances that react with oxygen and that have been considered as potential rocket fuels...Problem 82E:
How much heat is produced when 1.25 g of chromium meta’ reacts with oxygen gas under standard...Problem 83E:
Ethylene, C2H2, a byproduct from the fractional distillation of petroleum, is fourth among the 50...Problem 84E:
The oxidation of the sugar glucose, C6H12O6, is described by the following equation:...Problem 85E:
Propane, C3H8, is a hydrocarbon that is commonly used as a fuel. (a) Write a balanced equation for...Problem 86E:
During a recent winter month in Sheboygan, Wisconsin, it was necessary to obtain 3500 kWh of heat...Problem 87E:
Which bond in each of the following pairs of bonds is the strongest? (a) C-CorC=C (b) C-NorC=N (c)...Problem 88E:
Using the bond energies in Table 9.3, determine the approximate enthalpy change for each of the...Problem 89E:
Using the bond energies in Table 9.3, determine the approximate enthalpy change for each of the...Problem 90E:
Draw a curve that describes the energy of a system with H and Cl atoms at varying distances. Then,...Problem 91E:
Explain why bonds occur at specific average bond distances instead of the atoms approaching each...Problem 92E:
When a molecule can form two different structures, the structure with the stronger bonds is usually...Problem 93E:
How does the bond energy of HCl(g) differ from the standard enthalpy of formation of HCl(g) ?Problem 94E:
Using the standard enthalpy of formation data in Appendix G, show how the standard enthalpy of...Problem 95E:
Using the standard enthalpy of formation data in Appendix G. calculate the bond energy of the...Problem 96E:
Using the standard enthalpy of formation data in Appendix G, determine which bond is stronger: the...Problem 97E:
Using the standard enthalpy of formation data in Appendix G. determine which bond is stronger: the...Problem 98E:
Complete the following Lewis structure by adding bonds (not atoms), and then indicate the longest...Problem 99E:
Use the bond energy to calculate an approximate value of H for the following reaction. Which is the...Problem 100E:
Use principles of atomic structure to answer each of the following:(4) (a) The radius of the Ca atom...Problem 101E:
The lattice energy of LiF is 1023 kJ/mol, and the Li-F distance is 200.8 pm. NaF crystallizes in the...Problem 102E:
For which of the following substances is the least energy required to convert one mole of the solid...Problem 103E:
The reaction of a metal, M, with a halogen, X2, proceeds by an exothermic reaction as indicated by...Problem 104E:
The lattice energy of LiF is 1023 kJ/mol, and the Li-F distance is 201 pm. MgO crystallizes in the...Problem 105E:
Which compound in each of the following pairs has the larger lattice energy? Note: Mg2+andLi+ have...Problem 106E:
Which compound in each of the following pairs has the larger lattice energy? Note:Ba2+andK+ have...Problem 107E:
Which of the following compounds requires the most energy to convert one mole of the solid into...Browse All Chapters of This Textbook
Chapter 1 - Essential IdeasChapter 2 - Atoms, Molecules, And IonsChapter 3 - Electronic Structure And Periodic Properties Of ElementsChapter 4 - Chemical Bonding And Molecular GeometryChapter 5 - Advanced Theories Of BondingChapter 6 - Composition Of Substances And SolutionsChapter 7 - Stoichiometry Of Chemical ReactionsChapter 8 - GasesChapter 9 - ThermochemistryChapter 10 - Liquids And Solids
Chapter 11 - Solutions And ColloidsChapter 12 - ThermodynamicsChapter 13 - Fundamental Equilibrium ConceptsChapter 14 - Acid-base EquilibriaChapter 15 - Equilibria Of Other Reaction ClassesChapter 16 - ElectrochemistryChapter 17 - KineticsChapter 18 - Representative Metals, Metalloids, And NonmetalsChapter 19 - Transition Metals And Coordination ChemistryChapter 20 - Nuclear ChemistryChapter 21 - Organic Chemistry
Sample Solutions for this Textbook
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More Editions of This Book
Corresponding editions of this textbook are also available below:
CHEMISTRY: ATOMS FIRST
18th Edition
ISBN: 9781947172180
Chemistry: Atoms First
1st Edition
ISBN: 9781630182151
Chemistry: Atoms First
18th Edition
ISBN: 9781938168154
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