MASTERING CHEM W/ETEXT ACCESS CARD
17th Edition
ISBN: 9781323767818
Author: Brown
Publisher: Pearson Custom Publishing
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Textbook Question
Chapter 6, Problem 108IE
- Account for formation of the following series of oxides in terms of the electron configurations of the elements and the discussion of ionic compounds in Section 2.7 GI:
K2O, CaO, Sc2O3, Ti02, V205, CrO3.
| Oxide | K20(s) | Ca0(s) | Ti02(s) | V205(s) |
| Alff | -363.2 | -635.1 | -938.7 | -1550.6 |
Calculate the enthalpy changes in the following general reaction for each case:
MnOm(s) + H2(g) ->nM(s) + mH2O(g)
(You will need to write the balanced equation for each case and then compute ΔH°. )(d) Based on the data given, estimate a value ofΔHf ° for Sc203(s).
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(a) Account for formation of the following series of oxidesin terms of the electron configurations of the elementsand the discussion of ionic compounds in Section 2.7:K2O, CaO, Sc2O3, TiO2, V2O5, CrO3. (b) Name these oxides.(c) Consider the metal oxides whose enthalpies of formation(in kJ mol - 1) are listed here.Oxide K2O1s2 CaO1s2 TiO21s2 V2O51s2ΔHf° -363.2 -635.1 -938.7 -1550.6Calculate the enthalpy changes in the following general reactionfor each case:MnOm1s2 + H21g2¡nM1s2 + mH2O1g2(You will need to write the balanced equation for each caseand then compute ΔH°.) (d) Based on the data given, estimatea value of ΔHf° for Sc2O31s2.
2. Explain the following phenomena on the basis of electron configuration.
i) Fluorine forms an ion having a charge of -1. Support your answer by providing the electron configuration of both atom and ion.
ii) Which is the more likely the configuration for Mn2+: [Ar]4s23d3 or [Ar]3d5.
Give reason for your answer.
(a) Account for formation of the following series of oxidesin terms of the electron configurations of the elementsand the discussion of ionic K2O, CaO, Sc2O3, TiO2, V2O5, CrO3. (b) Name these oxides.(c) Consider the metal oxides whose enthalpies of formation(in kJ mol -1) are listed here. Calculate the enthalpy changes in the following general reactionfor each case:MnOm(s) + H2(g)----->nM(s) + mH2O(g)(You will need to write the balanced equation for each caseand then compute ΔH°.) (d) Based on the data given, estimatea value of ΔHf° for Sc2O3(s).
Chapter 6 Solutions
MASTERING CHEM W/ETEXT ACCESS CARD
Ch. 6.1 - A source of electromagnetic radiation produces...Ch. 6.1 - Which type of visible light has a longer...Ch. 6.1 - Consider the following three statements: For any...Ch. 6.1 - A laser used in orthopedic spine surgery produces...Ch. 6.2 - Prob. 6.3.1PECh. 6.2 -
A laser emits light that has a frequency of 4.69...Ch. 6.3 - Prob. 6.4.1PECh. 6.3 -
For each of the following transitions, give the...Ch. 6.4 - Consider the following three moving objects: a...Ch. 6.4 - Calculate the velocity of a neutron whose de...
Ch. 6.5 - An orbital has n = 4 and ml = 0, 1, 2, 3 -3, - 2,...Ch. 6.5 -
What is the designation for the subshell with = 5...Ch. 6.8 - How many of the elements in the second row of the...Ch. 6.8 - Write the electron configuration for silicon,...Ch. 6.9 - A certain atom has an ns2np2electron configuration...Ch. 6.9 -
Which group of elements is characterized by an...Ch. 6.9 -
A certain atom has a [noble gas]5s24d105p4...Ch. 6.9 - Prob. 6.9.2PECh. 6 - In this chapter, we have learned about the...Ch. 6 - The speed of sound in dry air at 20°C is 343 m/s...Ch. 6 -
6.2 A popular kitchen appliance produces...Ch. 6 - 6.3 The following diagrams represent two...Ch. 6 -
6.4 Stars do not all have the same temperature....Ch. 6 - 6 5 The familiar phenomenon of a rainbow results...Ch. 6 -
6.7 A certain quantum mechanical system has the...Ch. 6 - Consider the three electronic transitions in a...Ch. 6 - Prob. 8ECh. 6 -
6.9 The contour representation of one of the...Ch. 6 -
6.10 The accompanying drawing shows a contour...Ch. 6 -
8.11 Four possible electron configurations for a...Ch. 6 -
6.12 State where in the periodic table these...Ch. 6 - Prob. 13ECh. 6 -
6.14
a What is the relationship between the...Ch. 6 - Label each of the following statements as true or...Ch. 6 - Determine which of the following statements are...Ch. 6 - Arrange the following kinds of electromagnetic...Ch. 6 - List the following types of electromagnetic...Ch. 6 - What is the frequency of radiation that has a...Ch. 6 - What is the frequency of radiation whose...Ch. 6 - A laser pointer used in a lecture hall emits light...Ch. 6 - It is possible to convert radiant energy into...Ch. 6 - If human height were quantized in 1-foot...Ch. 6 - Einstein's 1905 paper on the photoelectric effect...Ch. 6 - Calculate the energy of a photon of...Ch. 6 - Prob. 26ECh. 6 - Prob. 27ECh. 6 - An AM radio station broadcasts at 1010 kHz, and...Ch. 6 - One type of sunburn occurs on exposure to UV light...Ch. 6 - Prob. 30ECh. 6 - Prob. 31ECh. 6 - A stellar object is emitting radiation at 3.55 mm....Ch. 6 - Molybdenum metal must absorb radiation with a...Ch. 6 - Titanium metal requires a photon with a minimum...Ch. 6 - Prob. 35ECh. 6 - Classify each of the following statements as...Ch. 6 - Prob. 37ECh. 6 -
6 38 Indicate whether energy is emitted or...Ch. 6 - Using Equation 6.5. calculate the energy of an...Ch. 6 - Prob. 40ECh. 6 - The visible emission lines observed by Balmer all...Ch. 6 - Prob. 42ECh. 6 - Prob. 43ECh. 6 - The hydrogen atom can absorb light of wavelength...Ch. 6 - Prob. 45ECh. 6 - Prob. 46ECh. 6 - Use the de Brogue relationship to determine the...Ch. 6 - Prob. 48ECh. 6 - Neutron diffraction is an important technique for...Ch. 6 - The electron microscope has been widely used to...Ch. 6 - Using Heisenberg's uncertainty principle,...Ch. 6 - Prob. 52ECh. 6 - Classify the following statements as either true...Ch. 6 - 0 1 2 3 4 5 6 7 8 9 10 Distance from the nucleus,...Ch. 6 - Prob. 55ECh. 6 - Prob. 56ECh. 6 - Prob. 57ECh. 6 - Give the values for n, I,and mlfor each orbital in...Ch. 6 - Prob. 59ECh. 6 - Prob. 60ECh. 6 - Which of the following represent impossible...Ch. 6 - For the table that follows, write which orbital...Ch. 6 - Sketch the shape and orientation of the following...Ch. 6 - Prob. 64ECh. 6 - Prob. 65ECh. 6 - Prob. 66ECh. 6 - Prob. 67ECh. 6 - Prob. 68ECh. 6 - Two possible electron configurations for an Li...Ch. 6 -
6.70 An experiment called the Stern—Gerlach...Ch. 6 - Prob. 71ECh. 6 - Prob. 72ECh. 6 - What are "valence electrons"? What are "core...Ch. 6 - For each element, indicate the number of valence...Ch. 6 - Write the condensed electron configurations for...Ch. 6 - Write the condensed electron configurations for...Ch. 6 - Identify the specific element that corresponds to...Ch. 6 - Identify the group of elements that corresponds to...Ch. 6 - The following do not represent valid ground-state...Ch. 6 - Prob. 80ECh. 6 - Prob. 81AECh. 6 - Prob. 82AECh. 6 - Prob. 83AECh. 6 - Prob. 84AECh. 6 - Prob. 85AECh. 6 - Prob. 86AECh. 6 - Prob. 87AECh. 6 - In an experiment to study the photoelectric...Ch. 6 - Prob. 89AECh. 6 - Prob. 90AECh. 6 - Prob. 91AECh. 6 - Prob. 92AECh. 6 - Prob. 93AECh. 6 - Prob. 94AECh. 6 - Prob. 95AECh. 6 - Prob. 96AECh. 6 - Prob. 97AECh. 6 - Prob. 98AECh. 6 - Prob. 99AECh. 6 - [6.100] The Chemistry and Life box in Section 6.7...Ch. 6 - Prob. 101AECh. 6 - Using the periodic table as a guide, write the...Ch. 6 - Prob. 103AECh. 6 - [6.104] In the experiment shown schematically...Ch. 6 - Microwave ovens use microwave radiation to heat...Ch. 6 - Prob. 106IECh. 6 - The discovery of hafnium, element number 72,...Ch. 6 - Account for formation of the following series of...Ch. 6 - Prob. 109IECh. 6 - The two most common isotopes of uranium are 235U...
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