Introductory Chemistry (6th Edition)
6th Edition
ISBN: 9780134302386
Author: Nivaldo J. Tro
Publisher: PEARSON
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Textbook Question
Chapter 9, Problem 23E
Within an electron configuration. What do symbols such as [Ne] and [Kr] represent?
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The structure of compound 1,3,5-trimethylbenzene (mesitylene) is given below.
How many signals would you expect to find in the 'H NMR spectrum of 1,3,5-trimethylbenzene (mesitylene)?
Check
×
1
How many signals do you expect in the 'H NMR spectrum for this molecule?
CI CI
Cl
Write the answer in the table below.
Also, in each of the drawing areas below is a copy of the molecule, with H atoms shown. In each copy, one of the H atoms is highlighted red. Highlight in red all
other H atoms that would contribute to the same signal as the H already highlighted red.
Note for advanced students: Remember, a multiplet is considered one signal in the 'H NMR spectrum.
1
Number of signals in the 'H NMR spectrum.
☐
For the molecule in the top drawing area, highlight in red any other H atoms that will contribute to the same
signal as the H atom already highlighted red.
If no other H atoms will contribute, check the box at right.
No additional H atoms to highlight in
top molecule
For the molecule in the bottom drawing area, highlight in red any other H atoms that will contribute to the
same signal as the H atom already highlighted red.
If no other H atoms will contribute, check the box at…
wrtie the balanced equation and find the E° when the following half- reactions are combined
Zn2+(aq) + 2e---> Zn(s) E°= -0.763V
Ag+(aq) + e---> Ag (s) E°=+0.799V
Chapter 9 Solutions
Introductory Chemistry (6th Edition)
Ch. 9 - Q1. Which set of wavelengths for light are...Ch. 9 - Which of the listed types of electromagnetic...Ch. 9 - Q3. Which electron transition in the Bohr model...Ch. 9 - What is the electron configuration of arsenic...Ch. 9 - Which orbital diagram corresponds to phosphorus...Ch. 9 - Q6. How many valence electrons does tellurium (Te)...Ch. 9 - Q7. The element sulfur forms an ion with what...Ch. 9 - Order the elements Sr, Ca, and Se in order of...Ch. 9 - Which of the listed elements has the highest...Ch. 9 - Q10. Which of the listed elements is most...
Ch. 9 - Which property decreases as you move down a column...Ch. 9 - Q12. When aluminum forms an ion, it loses...Ch. 9 - 1. When were the Bohr model the quantum-mechanical...Ch. 9 - 2. What is light? How fast does light travel?
Ch. 9 - 3. What is white light? Colored light?
Ch. 9 - Explain in terms of absorbed and reflected light,...Ch. 9 - What is the relationship between the wavelength of...Ch. 9 - 6. List some sources of gamma rays.
Ch. 9 - How are X-rays used?Ch. 9 - Why should excess exposure to gamma rays and...Ch. 9 - Why should excess exposure to ultraviolet light be...Ch. 9 - What objects emit infrared light? What technology...Ch. 9 - Why do microwave ovens heat food but tend not to...Ch. 9 - 12 .What type of electromagnetic radiation is used...Ch. 9 - Describe the Bohr model for the hydrogen atom.Ch. 9 - 14. What is an emission spectrum? Use the Bohr...Ch. 9 - 15. Explain the difference between a Bohr orbit...Ch. 9 - 16. What is the difference between the ground...Ch. 9 - 17. Explain how the motion of an electron is...Ch. 9 - 18. Why do quantum-mechanical orbital have “fuzzy”...Ch. 9 - 19. List the four possible subshells in the...Ch. 9 - 20. List the quantum-mechanical orbitals through...Ch. 9 - Prob. 21ECh. 9 - Prob. 22ECh. 9 - Within an electron configuration. What do symbols...Ch. 9 - Explain the difference between valence electrons...Ch. 9 - Identify each block in the blank periodic table....Ch. 9 - Prob. 26ECh. 9 - Prob. 27ECh. 9 - Prob. 28ECh. 9 - Prob. 29ECh. 9 - How far does light travel in each time period? a....Ch. 9 - 31. Which type of electromagnetic radiation has...Ch. 9 - 32. Which type of electromagnetic radiation has...Ch. 9 - List the types of electromagnetic radiation in...Ch. 9 - List the types of electromagnetic radiation in...Ch. 9 - List two types of electromagnetic radiation with...Ch. 9 - List two types of electromagnetic radiation with...Ch. 9 - List these three types of radiationinfrared,...Ch. 9 - List these three types of electromagnetic...Ch. 9 - Prob. 39ECh. 9 - 40. In the Bohr model, what happens when an...Ch. 9 - 41. Two of the emission wavelengths in the...Ch. 9 - 42. Two of the emission wavelengths in the...Ch. 9 - 43. Sketch the 1s and 2p orbitals. How do the 2s...Ch. 9 - Sketch the 3d orbitals. How do the 4d orbitals...Ch. 9 - Which electron is, on average closer to the...Ch. 9 - 46. Which electron is, on average, farther from...Ch. 9 - 47. According to the quantum-mechanical model for...Ch. 9 - Prob. 48ECh. 9 - 49. Write full electron configuration for each...Ch. 9 - 50. Write full electron configurations for each...Ch. 9 - 51. Write full orbital diagrams and indicate the...Ch. 9 - Write full orbital diagrams and indicate the...Ch. 9 - Write electron configurations for each element....Ch. 9 - Write electron configurations for each element....Ch. 9 - Prob. 55ECh. 9 - Prob. 56ECh. 9 - Write full electron configurations and indicate...Ch. 9 - 58. Write full electron configurations and...Ch. 9 - Write orbital diagrams for the valence electrons...Ch. 9 - 60. Write orbital diagrams for the valence...Ch. 9 - How many valence electrons are in each element? a....Ch. 9 - 62. How many valence electrons are in each...Ch. 9 - 63. List the outer electron configuration for each...Ch. 9 - Prob. 64ECh. 9 - Prob. 65ECh. 9 - Use the periodic table to write electron...Ch. 9 - Use the periodic table to write electron...Ch. 9 - 68. Use the periodic table to write electron...Ch. 9 - Prob. 69ECh. 9 - How many 3d electrons are in an atom of each...Ch. 9 - Prob. 71ECh. 9 - Prob. 72ECh. 9 - Name the element in the third period (row) of the...Ch. 9 - 74. Name the element in the fourth period of the...Ch. 9 - 75. Use the periodic table to identify the element...Ch. 9 - 76. Use the periodic table to identify the element...Ch. 9 - 77. Choose the element with the higher ionization...Ch. 9 - Choose the element with the higher ionization...Ch. 9 - Arrange the elements in order of increasing...Ch. 9 - 80. Arrange the elements in order of increasing...Ch. 9 - 81. Choose the element with the larger atoms from...Ch. 9 - Choose the element with the larger atoms from each...Ch. 9 - Prob. 83ECh. 9 - Prob. 84ECh. 9 - 85. Choose the more metallic element from each...Ch. 9 - Choose the more metallic element from each pair....Ch. 9 - 87. Arrange these elements in order of increasing...Ch. 9 - Arrange these elements in order of increasing...Ch. 9 - What is the maximum number of electrons that can...Ch. 9 - 90. What is the maximum number of electrons that...Ch. 9 - Use the electron configurations of the alkaline...Ch. 9 - Prob. 92ECh. 9 - Write the electron configuration for each ion....Ch. 9 - Write the electron configuration for each ion....Ch. 9 - Prob. 95ECh. 9 - 96. Examine Figure 4.14, which shows the elements...Ch. 9 - Prob. 97ECh. 9 - Identify what is wrong with each electron...Ch. 9 - Prob. 99ECh. 9 - Prob. 100ECh. 9 - Prob. 101ECh. 9 - Based on periodic trends, which one of these...Ch. 9 - When an electron makes a transition from n=3 to...Ch. 9 - Prob. 104ECh. 9 - The distance from the sun to Earth is 1.496108 km....Ch. 9 - Prob. 106ECh. 9 - 107. The wave nature of matter was first proposed...Ch. 9 - 108. The particle nature of light was first...Ch. 9 - Prob. 109ECh. 9 - When atoms lose more than one electron, the...Ch. 9 - 111. Excessive exposure to sunlight increases the...Ch. 9 - 112. The quantum-mechanical model, besides...Ch. 9 - Prob. 113QGWCh. 9 - 116. Using grammatically correct sentences,...Ch. 9 - 117. The first graph shown here is of the first...
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- Consider this molecule: How many H atoms are in this molecule? How many different signals could be found in its 'H NMR spectrum? Note: A multiplet is considered one signal. ☐arrow_forwardStudy this 'H NMR spectrum, and then answer the questions about it in the table below. Check 1.0- 0.5- 0.0 10.0 9.0 8.0 7.0 6.0 5.0 4.0 3.0 2.0 1.0 0.0 What unit symbol should be written on the horizontal axis? What is the chemical shift & of the doublet? If there is no doublet, just check the box instead. Give your answer to 2 significant digits. What is the chemical shift of the signal immediately upfield of the doublet? If there is no doublet, or no signal upfield of it, check the box instead. What is the chemical shift & of the least deshielded proton? If you can't tell without more information, check the box instead. 血 8 = ☐ There is no doublet. 8 = ☐ No such signal. 8 = 0 Need more information.arrow_forwardhow many moles of H2O2 are required to react with 11g of N2H4 according to the following reaction? (atomic weights: N=14.01, H=1.008, O= 16.00) 7H2O2 + N2H4 -> 2HNO3 + 8H20arrow_forward
- calculate the number of moles of H2 produced from 0.78 moles of Ga and 1.92 moles HCL? 2Ga+6HCL->2GaCl3+3H2arrow_forwardan adult human breathes 0.50L of air at 1 atm with each breath. If a 50L air tank at 200 atm is available, how man y breaths will the tank providearrow_forwardWhat are the advantages and/or disadvantages of using the MOHR titration method & AOEC method?arrow_forward
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- Why do we analyse salt?arrow_forwardCurved arrows are used to illustrate the flow of electrons. Using the provided starting and product structures, draw the curved electron-pushing arrows for the following reaction or mechanistic step(s). Be sure to account for all bond-breaking and bond-making steps. H H CH3OH, H+ H Select to Add Arrows H° 0:0 'H + Q HH ■ Select to Add Arrows CH3OH, H* H. H CH3OH, H+ HH ■ Select to Add Arrows i Please select a drawing or reagent from the question areaarrow_forwardWhat are examples of analytical methods that can be used to analyse salt in tomato sauce?arrow_forward
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