Laboratory Experiments for Chemistry: The Central Science (14th Edition)
14th Edition
ISBN: 9780134566207
Author: Theodore E. Brown, H. Eugene LeMay, Bruce E. Bursten, Catherine Murphy, Patrick Woodward, Matthew E. Stoltzfus, John H. Nelson, Kenneth C. Kemp
Publisher: PEARSON
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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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Learning Goal:
This question reviews the format for writing an element's written symbol. Recall that written symbols have a particular format. Written symbols use a form like this:
35 Cl
17
In this form the mass number, 35, is a stacked superscript. The atomic number, 17, is a stacked subscript. "CI" is the chemical symbol for the element chlorine. A general way to show this form is:
It is also correct to write symbols by leaving off the atomic number, as in the following form:
atomic number
mass number Symbol
35 Cl or
mass number Symbol
This is because if you write the element symbol, such as Cl, you know the atomic number is 17 from that symbol. Remember that the atomic number, or number of protons in the nucleus, is what defines the element. Thus, if 17 protons
are in the nucleus, the element can only be chlorine. Sometimes you will only see 35 C1, where the atomic number is not written.
Watch this video to review the format for written symbols.
In the following table each column…
need help please and thanks dont understand only need help with C-F
Learning Goal:
As discussed during the lecture, the enzyme HIV-1 reverse transcriptae (HIV-RT) plays a significant role for the HIV virus and is an important drug target. Assume a concentration [E] of 2.00 µM (i.e. 2.00 x 10-6 mol/l) for HIV-RT. Two potential drug molecules, D1 and D2, were identified, which form stable complexes with the HIV-RT.
The dissociation constant of the complex ED1 formed by HIV-RT and the drug D1 is 1.00 nM (i.e. 1.00 x 10-9). The dissociation constant of the complex ED2 formed by HIV-RT and the drug D2 is 100 nM (i.e. 1.00 x 10-7).
Part A - Difference in binding free eenergies
Compute the difference in binding free energy (at a physiological temperature T=310 K) for the complexes. Provide the difference as a positive numerical expression with three significant figures in kJ/mol.
The margin of error is 2%.
Part B - Compare difference in free energy to the thermal…
need help please and thanks dont understand only need help with C-F
Learning Goal:
As discussed during the lecture, the enzyme HIV-1 reverse transcriptae (HIV-RT) plays a significant role for the HIV virus and is an important drug target. Assume a concentration [E] of 2.00 µM (i.e. 2.00 x 10-6 mol/l) for HIV-RT. Two potential drug molecules, D1 and D2, were identified, which form stable complexes with the HIV-RT.
The dissociation constant of the complex ED1 formed by HIV-RT and the drug D1 is 1.00 nM (i.e. 1.00 x 10-9). The dissociation constant of the complex ED2 formed by HIV-RT and the drug D2 is 100 nM (i.e. 1.00 x 10-7).
Part A - Difference in binding free eenergies
Compute the difference in binding free energy (at a physiological temperature T=310 K) for the complexes. Provide the difference as a positive numerical expression with three significant figures in kJ/mol.
The margin of error is 2%.
Part B - Compare difference in free energy to the thermal…
Chapter 6 Solutions
Laboratory Experiments for Chemistry: The Central Science (14th Edition)
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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