Modified Mastering Chemistry with Pearson eText -- Standalone Access Card -- for Introductory Chemistry (6th Edition)
6th Edition
ISBN: 9780134565620
Author: Nivaldo J. Tro
Publisher: PEARSON
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Textbook Question
Chapter 5, Problem 29E
Use the law of constant composition to complete the table summarizing the table summarizing the amounts of nitrogen and oxygen produced upon the decomposition of several samples of dinitrogen monoxide. Remember that, according to the law of constant composition, the ratio of the masses of the two elements
must be the same in all samples.
| Mass
|
Mass N | Mass 0 | |
| Sample A | 2.85 g | 1.82 g | 1.03 g |
| Sample B | 4.55 g | ____ | ___ |
| Sample C | ____ | ____ | 1.35 g |
| Sample D | ____ | 1.11 g | ___ |
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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 5 Solutions
Modified Mastering Chemistry with Pearson eText -- Standalone Access Card -- for Introductory Chemistry (6th Edition)
Ch. 5 - Q1. Carbon tetrachloride has a chlorine - to-...Ch. 5 - Write a chemical formula for a compound that...Ch. 5 - Q3. How many oxygen atoms are in the chemical...Ch. 5 - Which element is a molecular element? a. Copper b....Ch. 5 - Q5. Which compound is ionic?
a.
b.
c.
d.
Ch. 5 - Write a formula for the compound that forms...Ch. 5 - Prob. 7SAQCh. 5 - Prob. 8SAQCh. 5 - Name the compound CrCl3 a. monochromium...Ch. 5 - Name the compound BaSO4 a. barium sulfate b....
Ch. 5 - Name the compound PF5. a. monophosphorus...Ch. 5 - Q12. What is the formula for manganese (III)...Ch. 5 - Q13. Name the acid (aq).
a. hydrogen phosphate
b....Ch. 5 - What is the formula for hydrobromic acid? a. HBr...Ch. 5 - Prob. 15SAQCh. 5 - 1. Do the properties of an element change when it...Ch. 5 - How might the world be different if elements did...Ch. 5 - What is the law of constant composition? Who...Ch. 5 - 4. What is a chemical formula? List some examples....Ch. 5 - 5. In a chemical formula, which element is listed...Ch. 5 - Prob. 6ECh. 5 - 7. Explain the difference between a molecular...Ch. 5 - What is a structural formula? What is the...Ch. 5 - What is the difference between a molecular element...Ch. 5 - Prob. 10ECh. 5 - What is the difference between a common name for a...Ch. 5 - List the metals that only one type of ion (that...Ch. 5 - Prob. 13ECh. 5 - Prob. 14ECh. 5 - Prob. 15ECh. 5 - Prob. 16ECh. 5 - Prob. 17ECh. 5 - Prob. 18ECh. 5 - What is the basic form for the named of molecular...Ch. 5 - How many atoms does each prefix specify? Mono-,...Ch. 5 - Prob. 21ECh. 5 - Prob. 22ECh. 5 - Prob. 23ECh. 5 - Prob. 24ECh. 5 - Two samples of sodium chloride are decomposed into...Ch. 5 - Two samples of carbon tetrachloride are decomposed...Ch. 5 - 27. Upon decomposition, one sample of magnesium...Ch. 5 - The mass ratio of sodium to fluorine in sodium...Ch. 5 - Use the law of constant composition to complete...Ch. 5 - Use the law of constant composition to complete...Ch. 5 - Prob. 31ECh. 5 - Prob. 32ECh. 5 - Prob. 33ECh. 5 - Prob. 34ECh. 5 - 35. How many oxygen atoms are in each chemical...Ch. 5 - 35. How many oxygen atoms are in each chemical...Ch. 5 - Determine the number of each type of atom in each...Ch. 5 - Determine the number of each type of atom in each...Ch. 5 - Prob. 39ECh. 5 - Complete the table. Formula Number of SO42units...Ch. 5 - 41. Give the empirical formula that corresponds to...Ch. 5 - 42. Give the empire formula that corresponds to...Ch. 5 - 43. Classify each element as atomic or...Ch. 5 - 44. Which elements have molecules as their basic...Ch. 5 - Classify each compound as ionic or molecular. a....Ch. 5 - Classify each compound as ionic or molecular. a....Ch. 5 - Match the substance on the left with the basic...Ch. 5 - Prob. 48ECh. 5 - What are the basic unitssingle atoms, molecules,...Ch. 5 - What are the basic unitssingle atoms molecules, or...Ch. 5 - 51. Classify each compound as ionic or molecular....Ch. 5 - 52. Classify each compound as ionic or molecular....Ch. 5 - 53. Write a formula for the ionic compound that...Ch. 5 - Write a formula for the ionic compound that forms...Ch. 5 - Prob. 55ECh. 5 - 56. Write a formula for the compound that forms...Ch. 5 - Prob. 57ECh. 5 - Prob. 58ECh. 5 - 59. Name each ionic compound. In each of these...Ch. 5 - 60 Name each ionic compound. In each of these...Ch. 5 - Prob. 61ECh. 5 - Prob. 62ECh. 5 - Determine whether the metal in each ionic compound...Ch. 5 - Prob. 64ECh. 5 - Prob. 65ECh. 5 - Prob. 66ECh. 5 - Prob. 67ECh. 5 - Prob. 68ECh. 5 - Prob. 69ECh. 5 - Prob. 70ECh. 5 - 71. Name each molecular compound.
a.
b.
c. NO
d....Ch. 5 - 72. Name each molecular compound.
a.
b.
C.
d....Ch. 5 - 73. Write a formula for each molecular compound...Ch. 5 - Write a formula for each molecular compound. a....Ch. 5 - Determine whether the name shown for each...Ch. 5 - Prob. 76ECh. 5 - Prob. 77ECh. 5 - Prob. 78ECh. 5 - Prob. 79ECh. 5 - 80. Name each acid (Hint: The names of the...Ch. 5 - 81. Write a formula for each acid.
a. phosphoric...Ch. 5 - Write a formula for each acid. a. hydrofluoric...Ch. 5 - 83. Calculate the formula mass for each...Ch. 5 - Calculate the formula mass for each compound. a....Ch. 5 - Prob. 85ECh. 5 - Prob. 86ECh. 5 - Prob. 87ECh. 5 - Prob. 88ECh. 5 - 89. How many chlorine atoms are in each set?
a....Ch. 5 - Prob. 90ECh. 5 - Prob. 91ECh. 5 - Prob. 92ECh. 5 - Prob. 93ECh. 5 - Prob. 94ECh. 5 - Prob. 95ECh. 5 - Prob. 96ECh. 5 - 97. For each compound, list the correct formula...Ch. 5 - For each compound, list the correct formula and...Ch. 5 - 99. Name each compound and calculate its formula...Ch. 5 - 100. Name each compound and calculate its formula...Ch. 5 - A compound contains only carbon and hydrogen and...Ch. 5 - Prob. 102ECh. 5 - 103. Carbon has two naturally occurring isotopes:...Ch. 5 - Nitrogen has two naturally occurring isotopes:...Ch. 5 - Prob. 105ECh. 5 - Molecules can be as small as two atoms or as large...Ch. 5 - Prob. 107ECh. 5 - Prob. 108QGWCh. 5 - Prob. 109QGWCh. 5 - Prob. 110QGWCh. 5 - Calculate the formula mass for each compound in...Ch. 5 - 112. Climate scientists have become increasingly...
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