Homework Answers
1) E = hc/L
(L = wavelength)
Energy is inversely proportional to wavelength.
Infrared having longest wavelength that means Infrared creates lower energy.
Option D is correct.
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1- Which light emission creates lowest energy a- Red emission b- Green emission C- Blue emission...
1. Rank the following colors of visible light according to increasing energy: Red, Green, Blue. In...
1. Rank the following colors of visible light according to increasing energy: Red, Green, Blue. In other words, the color of light that is lowest energy is listed first, and the color of light that is highest in energy is listed last. 2. The most intense line in the emission spectrum for sodium appears at a wavelength of 589 nm. What color would you expect to observe when a solution that contains sodium ions is heated strongly in the flame...
4.8 He-Ne Laser The He-Ne laser system energy levels can be quite complicated, as shown in Figure...
4.8 He-Ne Laser The He-Ne laser system energy levels can be quite complicated, as shown in Figure 4.58. There are a number of lasing emissions in the laser output in the red (632.8 nm), green (543.5 nm), orange (612 nm), yellow (594.1 nm), and in the infrared regions at 1.52 μm and 3.39 μm, which give the He-Ne laser its versatility. The pumping mechanism for all these lasers operations is the same, energy transfer from excited He atoms to Ne...
Post-Laboratory Assignment 1. Which end of the spectrum shows higher energy transitions? (Circle one) blue end...
Post-Laboratory Assignment 1. Which end of the spectrum shows higher energy transitions? (Circle one) blue end red end 2. As wavelength increases, energy increases decreases 3. As frequency increases, energy increases decreases 4. The intense Lyman-a hydrogen solar emission line at 121.58 nm is strongly absorbed by , in the stratosphere. This results in O dissociation and the ultimate formation of opone, O. to form the coone layer. a. Calculate the energy of one photon with a wavelength of 121.58...
PRE-LABORATORY QUESTIONS (For full credit show your calculations) 1. List the expected color of light and the...
PRE-LABORATORY QUESTIONS (For full credit show your calculations) 1. List the expected color of light and the corresponding wavelength (nm) associated with each cation (use Table 1) Rubidium, Rb Cesium, Cs 2. Calculate the energy associated with the light emitted by each of the elements above (sue equations 1 and 2) Rubidium, Rb Cesium, Cs 11:17 $3.us-east-1.amazonaws.com Flame Tests&Elecrn Ceniguaion 1 of 7 FLAME TESTS & ELECTRON CONFIGURATION INTRODUCTION AND BACKGROUND The chemistry of an element strongly depends on the...
1. The main pigment in leaves A. Chlorophyll B. Chloroplasts C. Plastids D. Carotonoid 2. The...
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answer QUESTIONS 1 - 20,3.5 POINTS EACH 1. Which of the following has a AHºr=0? AN)...
answer
QUESTIONS 1 - 20,3.5 POINTS EACH 1. Which of the following has a AHºr=0? AN) BOC) C.1.0 MH(aq) D. O2(g) E. none is on 2._ If a reaction is carried out under constant pressure conditions, it's always true that A. q- AH B.4-AE C.4"W D. both A and C are correct D. none of the answers is com 3. 0.103 g zinc reacts with 50.0 ml. of an hydrochloric acid solution (an excess of HCT) in a constant presses...
100. Flare is: (a) the widest frequency of light that can enter an objective (b) the...
100. Flare is: (a) the widest frequency of light that can enter an objective (b) the bending of light as it passes through different substances (c) wavelength/2NA (d) when the beam of light "spreads" wider than the objective's "hole" (e) wavelengths of light too short to enter the objective 101. Coccobacillus shaped bacteria are considered to be_?_ (a) cocci (b) bacilli (c) diplobacilli (d) diplococci (e)answers a and b only 102. This microscope is used for cheap and quick "'diagnosis"...
1 Reaction C: Copper(II) Hydroxide to Copper(IT) Oxide Observations: The solntich goes from a light blue...
1 Reaction C: Copper(II) Hydroxide to Copper(IT) Oxide Observations: The solntich goes from a light blue to a dark blue. when heated the solution turns to a green/black color. Balanced Molecular Equation: Balanced Net lonie Equation: Reaction D: Copper(IT) Oxide to Copper(II) Sulfate Observations: "The back sond is dissolved in the acid. This creates a light blue / Clear solurich Balanced Molecular Equation: Balanced Net Ionic Equation: Reaction E: Copper(II) Sulfate to Copper Metal (and Dissolution of excess Mg) Observations:...
1. Which of the following is not considered a nutrient a Vitamin B. Water c.Carbohydrate (d)...
1. Which of the following is not considered a nutrient a Vitamin B. Water c.Carbohydrate (d) Alcohol e Mineral 2. For which of the following causes of death does a person's diet play a part? a. Lung disease (6) Cancer Chronic lower respiratory diseases d. Infections of the blood e AIDS 3. Researchers repeatedly report that people who consume a variety of foods such as fruits, vegetables, legumes, nuts, and whole grains have reduced risks of which of the following...
1. Which of the following are the sites within the human body where carbon dioxide and...
1. Which of the following are the sites within the human body where carbon dioxide and oxygen are exchanged? A. Alveoli B. Arteries C. Synapses D. Venules 2. Which of the following describes the most important reason for repeating an experimental investigation? A. To verify the validity of the original findings B. To expand upon the original investigation C. To manipulate the independent variable D. To attempt to disprove the hypothesis 3. Lithium has an atomic number of 3 and...
1. Rank the following colors of visible light according to increasing energy: Red, Green, Blue. In other words, the color of light that is lowest energy is listed first, and the color of light that is highest in energy is listed last. 2. The most intense line in the emission spectrum for sodium appears at a wavelength of 589 nm. What color would you expect to observe when a solution that contains sodium ions is heated strongly in the flame...
4.8 He-Ne Laser The He-Ne laser system energy levels can be quite complicated, as shown in Figure 4.58. There are a number of lasing emissions in the laser output in the red (632.8 nm), green (543.5 nm), orange (612 nm), yellow (594.1 nm), and in the infrared regions at 1.52 μm and 3.39 μm, which give the He-Ne laser its versatility. The pumping mechanism for all these lasers operations is the same, energy transfer from excited He atoms to Ne...
Post-Laboratory Assignment 1. Which end of the spectrum shows higher energy transitions? (Circle one) blue end red end 2. As wavelength increases, energy increases decreases 3. As frequency increases, energy increases decreases 4. The intense Lyman-a hydrogen solar emission line at 121.58 nm is strongly absorbed by , in the stratosphere. This results in O dissociation and the ultimate formation of opone, O. to form the coone layer. a. Calculate the energy of one photon with a wavelength of 121.58...
PRE-LABORATORY QUESTIONS (For full credit show your calculations) 1. List the expected color of light and the corresponding wavelength (nm) associated with each cation (use Table 1) Rubidium, Rb Cesium, Cs 2. Calculate the energy associated with the light emitted by each of the elements above (sue equations 1 and 2) Rubidium, Rb Cesium, Cs 11:17 $3.us-east-1.amazonaws.com Flame Tests&Elecrn Ceniguaion 1 of 7 FLAME TESTS & ELECTRON CONFIGURATION INTRODUCTION AND BACKGROUND The chemistry of an element strongly depends on the...
answer
QUESTIONS 1 - 20,3.5 POINTS EACH 1. Which of the following has a AHºr=0? AN) BOC) C.1.0 MH(aq) D. O2(g) E. none is on 2._ If a reaction is carried out under constant pressure conditions, it's always true that A. q- AH B.4-AE C.4"W D. both A and C are correct D. none of the answers is com 3. 0.103 g zinc reacts with 50.0 ml. of an hydrochloric acid solution (an excess of HCT) in a constant presses...
1 Reaction C: Copper(II) Hydroxide to Copper(IT) Oxide Observations: The solntich goes from a light blue to a dark blue. when heated the solution turns to a green/black color. Balanced Molecular Equation: Balanced Net lonie Equation: Reaction D: Copper(IT) Oxide to Copper(II) Sulfate Observations: "The back sond is dissolved in the acid. This creates a light blue / Clear solurich Balanced Molecular Equation: Balanced Net Ionic Equation: Reaction E: Copper(II) Sulfate to Copper Metal (and Dissolution of excess Mg) Observations:...
1. Which of the following is not considered a nutrient a Vitamin B. Water c.Carbohydrate (d) Alcohol e Mineral 2. For which of the following causes of death does a person's diet play a part? a. Lung disease (6) Cancer Chronic lower respiratory diseases d. Infections of the blood e AIDS 3. Researchers repeatedly report that people who consume a variety of foods such as fruits, vegetables, legumes, nuts, and whole grains have reduced risks of which of the following...
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