Chemistry: Atoms First
3rd Edition
ISBN: 9781259638138
Author: Julia Burdge, Jason Overby Professor
Publisher: McGraw-Hill Education
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Textbook Question
Chapter 10, Problem 10.7QP
Decomposition reactions are usually endothermic, whereas combination reactions are usually exothermic. Give a qualitative explanation for this observation.
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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 10 Solutions
Chemistry: Atoms First
Ch. 10.1 - Calculate the number of calories in 723.01 J. (a)...Ch. 10.1 - The label on packaged food indicates that it...Ch. 10.1 - From the figure shown here, which of the following...Ch. 10.2 - Calculate the overall change in internal energy,...Ch. 10.2 - Calculate the change in total internal energy for...Ch. 10.2 - Calculate the magnitude of q for a system that...Ch. 10.2 - The diagram on the left shows a system before a...Ch. 10.2 - Prob. 10.2.1SRCh. 10.2 - Calculate w, and determine whether work is done by...Ch. 10.3 - Determine the work done (in joules) when a sample...
Ch. 10.3 - Calculate the work done by or on the system during...Ch. 10.3 - (a) Against what external pressure must a gas...Ch. 10.3 - The diagram on the left shows a sample of gas...Ch. 10.3 - Given the thermochemical equation for...Ch. 10.3 - Calculate the solar energy required to produce...Ch. 10.3 - Prob. 3PPBCh. 10.3 - The diagrams represent systems before and after...Ch. 10.3 - Given the thermochemical equation,...Ch. 10.3 - Given the thermochemical equation,...Ch. 10.4 - Prob. 10.4WECh. 10.4 - Prob. 4PPACh. 10.4 - Prob. 4PPBCh. 10.4 - A metal pellet with a mass of 100.0 g. originally...Ch. 10.4 - What would the final temperature be if the pellet...Ch. 10.4 - Prob. 5PPBCh. 10.4 - Prob. 5PPCCh. 10.4 - A Famous Amos bite-sized chocolate chip cookie...Ch. 10.4 - A serving of Grape-Nuts cereal (5.80 g) is burned...Ch. 10.4 - Prob. 6PPBCh. 10.4 - Suppose an experiment to determine the energy...Ch. 10.4 - Prob. 10.4.1SRCh. 10.4 - Prob. 10.4.2SRCh. 10.4 - Prob. 10.4.3SRCh. 10.4 - Quantities of 50.0 mL of 1.00 M HCl and 50.0 mL of...Ch. 10.5 - Given the following thermochemical equations....Ch. 10.5 - Use the thermochemical equations provided in...Ch. 10.5 - Prob. 10.5.1SRCh. 10.5 - Prob. 10.5.2SRCh. 10.6 - Prob. 10.8WECh. 10.6 - Using data from Appendix 2, calculate Hrn for...Ch. 10.6 - Using data from Appendix 2, calculate Hrn for...Ch. 10.6 - The diagrams represent a system before and after a...Ch. 10.6 - Given the following information, calculate the...Ch. 10.6 - Use the following data to calculate Hf for...Ch. 10.6 - Prob. 9PPBCh. 10.6 - The diagrams represent a system before and after a...Ch. 10.6 - Prob. 10.6.1SRCh. 10.6 - Prob. 10.6.2SRCh. 10.6 - Prob. 10.6.3SRCh. 10.7 - Use bond enthalpies from Table 10.4 to estimate...Ch. 10.7 - Use bond enthalpies from fable 10.4 to estimate...Ch. 10.7 - Prob. 10PPBCh. 10.7 - Prob. 10PPCCh. 10.7 - Prob. 10.7.1SRCh. 10.7 - Prob. 10.7.2SRCh. 10.7 - Prob. 10.7.3SRCh. 10.7 - Prob. 10.7.4SRCh. 10.8 - Prob. 10.11WECh. 10.8 - Prob. 11PPACh. 10.8 - The lattice energy of MgO is 3890 kJ/mol, and the...Ch. 10.8 - Prob. 11PPCCh. 10.8 - Prob. 10.8.1SRCh. 10.8 - Prob. 10.8.2SRCh. 10 - Using data from Appendix 2, calculate the standard...Ch. 10 - Using data from Appendix 2, calculate the standard...Ch. 10 - Prob. 10.3KSPCh. 10 - Prob. 10.4KSPCh. 10 - Define these terms: system, surroundings, thermal...Ch. 10 - What is heat? How does heat differ from thermal...Ch. 10 - Prob. 10.3QPCh. 10 - Define these terms: thermochemistry, exothermic...Ch. 10 - Prob. 10.5QPCh. 10 - Describe two exothermic processes and two...Ch. 10 - Decomposition reactions are usually endothermic,...Ch. 10 - On what law is the first law of thermodynamics...Ch. 10 - Explain what is meant by a state function. Give...Ch. 10 - In a gas expansion, 36 J of heat is absorbed from...Ch. 10 - Prob. 10.11QPCh. 10 - Prob. 10.12QPCh. 10 - Calculate w, and determine whether work is done by...Ch. 10 - Prob. 10.14QPCh. 10 - Prob. 10.15QPCh. 10 - Prob. 10.16QPCh. 10 - Define these terms: enthalpy and enthalpy of...Ch. 10 - Prob. 10.18QPCh. 10 - Prob. 10.19QPCh. 10 - Prob. 10.20QPCh. 10 - Prob. 10.21QPCh. 10 - A gas expands and does PV work on the surroundings...Ch. 10 - Prob. 10.23QPCh. 10 - Prob. 10.24QPCh. 10 - Consider the reaction at a certain temperature. If...Ch. 10 - Prob. 10.26QPCh. 10 - Prob. 10.27QPCh. 10 - Prob. 10.28QPCh. 10 - Prob. 10.1VCCh. 10 - Prob. 10.2VCCh. 10 - Prob. 10.3VCCh. 10 - Prob. 10.4VCCh. 10 - Prob. 10.5VCCh. 10 - Prob. 10.6VCCh. 10 - Prob. 10.7VCCh. 10 - Referring to the process depicted in Figure 10.10,...Ch. 10 - What is the difference between specific heat and...Ch. 10 - Define calorimetry and describe two commonly used...Ch. 10 - A 2.21-kg piece of copper metal is heated from...Ch. 10 - Prob. 10.32QPCh. 10 - A sheet of gold weighing 10.0 g and at a...Ch. 10 - Prob. 10.34QPCh. 10 - A quantity of 2.00 102 mL of 0.862 M HC1 is mixed...Ch. 10 - Prob. 10.36QPCh. 10 - Prob. 10.37QPCh. 10 - Prob. 10.38QPCh. 10 - A 25.95-g sample of methanol at 35.6C is added to...Ch. 10 - Prob. 10.40QPCh. 10 - Prob. 10.41QPCh. 10 - Prob. 10.42QPCh. 10 - Prob. 10.43QPCh. 10 - Prob. 10.44QPCh. 10 - Prob. 10.45QPCh. 10 - Prob. 10.46QPCh. 10 - Prob. 10.47QPCh. 10 - Prob. 10.48QPCh. 10 - Prob. 10.49QPCh. 10 - Prob. 10.50QPCh. 10 - What is meant by the standard-state condition?Ch. 10 - How are the standard enthalpies of an element and...Ch. 10 - What is meant by the standard enthalpy of a...Ch. 10 - Write the equation for calculating the enthalpy of...Ch. 10 - Prob. 10.55QPCh. 10 - Prob. 10.56QPCh. 10 - Prob. 10.57QPCh. 10 - Calculate the heats of combustion for the...Ch. 10 - Calculate the heats of combustion for the...Ch. 10 - Prob. 10.60QPCh. 10 - Prob. 10.61QPCh. 10 - Prob. 10.62QPCh. 10 - From the standard enthalpies of formation,...Ch. 10 - Prob. 10.64QPCh. 10 - Prob. 10.65QPCh. 10 - Prob. 10.66QPCh. 10 - Which is the more negative quantity at 25C: Hf for...Ch. 10 - Prob. 10.68QPCh. 10 - Prob. 10.69QPCh. 10 - Prob. 10.70QPCh. 10 - Prob. 10.71QPCh. 10 - Prob. 10.72QPCh. 10 - Prob. 10.73QPCh. 10 - Prob. 10.74QPCh. 10 - Prob. 10.75QPCh. 10 - Prob. 10.76QPCh. 10 - For the reaction 2C2H6(g)+7O2(g)4CO2(g)+6H2O(g)...Ch. 10 - Prob. 10.78QPCh. 10 - Prob. 10.79QPCh. 10 - Prob. 10.9VCCh. 10 - Prob. 10.10VCCh. 10 - Prob. 10.11VCCh. 10 - Prob. 10.12VCCh. 10 - Explain how the lattice energy of an ionic...Ch. 10 - Specify which compound in each of the following...Ch. 10 - Prob. 10.82QPCh. 10 - Prob. 10.83QPCh. 10 - Prob. 10.84QPCh. 10 - Prob. 10.85QPCh. 10 - Prob. 10.86QPCh. 10 - Prob. 10.87QPCh. 10 - Hydrazine (N2H4) decomposes according to the...Ch. 10 - Prob. 10.89QPCh. 10 - Prob. 10.90QPCh. 10 - Prob. 10.91QPCh. 10 - Prob. 10.92QPCh. 10 - Prob. 10.93QPCh. 10 - Prob. 10.94QPCh. 10 - You are given the following data....Ch. 10 - Prob. 10.96QPCh. 10 - Prob. 10.97QPCh. 10 - Prob. 10.98QPCh. 10 - Prob. 10.99QPCh. 10 - Compare the heat produced by the complete...Ch. 10 - The so-called hydrogen economy is based on...Ch. 10 - Prob. 10.102QPCh. 10 - Prob. 10.103QPCh. 10 - Prob. 10.104QPCh. 10 - Prob. 10.105QPCh. 10 - Prob. 10.106QPCh. 10 - Prob. 10.107QPCh. 10 - Prob. 10.108QPCh. 10 - A certain gas initially at 0.050 L undergoes...Ch. 10 - Prob. 10.110QPCh. 10 - The first step in the industrial recovery of zinc...Ch. 10 - Calculate the standard enthalpy change for the...Ch. 10 - Portable hot packs are available for skiers and...Ch. 10 - Prob. 10.114QPCh. 10 - Prob. 10.115QPCh. 10 - Prob. 10.116QPCh. 10 - Prob. 10.117QPCh. 10 - Prob. 10.118QPCh. 10 - Prob. 10.119QPCh. 10 - Prob. 10.120QPCh. 10 - Prob. 10.121QPCh. 10 - Prob. 10.122QPCh. 10 - Prob. 10.123QPCh. 10 - Prob. 10.124QPCh. 10 - Prob. 10.125QPCh. 10 - Vinyl chloride (C2H3Cl) differs from ethylene...Ch. 10 - Prob. 10.127QPCh. 10 - Prob. 10.128QPCh. 10 - Prob. 10.129QPCh. 10 - Determine the standard enthalpy of formation of...Ch. 10 - Prob. 10.131QPCh. 10 - Prob. 10.132QPCh. 10 - Prob. 10.133QPCh. 10 - Prob. 10.134QPCh. 10 - Prob. 10.135QPCh. 10 - Prob. 10.136QPCh. 10 - Both glucose and fructose arc simple sugars with...Ch. 10 - About 6.0 1013 kg of CO2 is fixed (converted to...Ch. 10 - Experiments show that it takes 1656 kJ/mol to...Ch. 10 - From a thermochemical point of view, explain why a...Ch. 10 - Prob. 10.141QPCh. 10 - Prob. 10.142QPCh. 10 - Prob. 10.143QPCh. 10 - Prob. 10.144QPCh. 10 - Prob. 10.145QPCh. 10 - Prob. 10.146QPCh. 10 - Prob. 10.147QPCh. 10 - Prob. 10.148QPCh. 10 - A drivers manual states that the stopping distance...Ch. 10 - Prob. 10.150QPCh. 10 - Prob. 10.151QPCh. 10 - Prob. 10.152QPCh. 10 - When 1.034 g of naphthalene (C10H8), is burned in...Ch. 10 - Prob. 10.154QPCh. 10 - A gas company in Massachusetts charges 27 cents...Ch. 10 - Prob. 10.156QPCh. 10 - Prob. 10.157QPCh. 10 - According to information obtained from...
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