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Post-Laboratory Questions 1. What is the iden tity of a HYDROGEN-LIKE cation that has the following...
Post-Laboratory Questions What is the identity of a HYDROGEN-LIKE cation that has the following energy levels?...
Post-Laboratory Questions What is the identity of a HYDROGEN-LIKE cation that has the following energy levels? (show calculations) E -3,485 x 10-17 E -8.712 x 10-18 E = -3.872 x 10-J Refer to the diagram below. a) Complete the diagram below to show all possible transitions when electrons go from the n-5 state to the n-2 state in hydrogen? b) Based on the number of transitions, which transition in to n) leads to the most intense line in the line...
13. A photon has an energy of 5.53 x 10-17 J. What is its frequency in...
13. A photon has an energy of 5.53 x 10-17 J. What is its frequency in s'? [h-6.63 x 10"Js). (4) 14. Infrared radiation from the sun has a wavelength of 6200 nm. Calculate the energy of one photon of that radiation (c = 3.0 x 10 m/s; h = 6.63 x 10-34 J·s). A) B) C) 4.1 x 10-9 J 4.1 x 10-30 J 3.2 x 10-29 D) E) 3.2 x 10-26 J between 10-20 and 10-19 J 15....
(e) The ionization energy of the hydrogen-like He ion equals twice the ionization energy of the...
(e) The ionization energy of the hydrogen-like He ion equals twice the ionization energy of the hydrogen atom. 2. Experiment A (Atoms and Line Spectra): Calculate the value of the third ionization energy of lithium in J. Bouleu (a) 2.42 x 10-16 (b) 1.96 x 10-17 (c) 2.18 x 10-18 (d) 4.90 x 10-18 (e) 1.96 x 10-19 3. Oxyhemoglobin absorbs photons with energies of 3.67 x 10"" J. What colour is the light of such photons? (a) nonvisible infrared...
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...
POST-LABORATORY QUESTIONS (Show your calculations). 1. A sample of gas weighs 3.10 g and occupies a...
POST-LABORATORY QUESTIONS (Show your calculations). 1. A sample of gas weighs 3.10 g and occupies a volume of 1.272 ml at 30 °C and 720 mm Hg. What is the molar mass of the gas? 2.3 moles of hydrogen occupy a volume of 67.20 L, at standard temperature and pressure (STP. 0 °C and 760 mmHg). What is the density of hydrogen at STP? 3.2.5 moles of gas, at 1590 mmHg, occupy a volume of 28.00 L. What is the...
Prelaboratory Assignment: The Atomic Spectra of Hydrogen 1. The helium ion, He', has energy levels similar...
Prelaboratory Assignment: The Atomic Spectra of Hydrogen 1. The helium ion, He', has energy levels similar to those of hydrogen and are given by the equation: E, (-8.72 x 10-" /n') Joules a) Calculate the energy of the four lowest energy levels of the He ion. E,- Joules EJoules Joules Joules b) What is the energy and wavelength associated with the n2 1 transition in He'? kJ/mol; λ= nm c) The strongest lines of the He spectrum occur at the...
Ionization is the removal of an electron to form a cation. It is possible to determine...
Ionization is the removal of an electron to form a cation. It is possible to determine the ionization energy for hydrogen using the Bohr equation, making the assumption that ionization is the transition from n=1 to n=∞. How much energy (in kJ) is required to ionize 1 mole of hydrogen atoms? A. 2.18 x 10-18 J B. 4.72 x 103 J C. 1.66 x 103 J D. 1.31 x 103 J E. 5.72 x 103 J ______ Answer: D 7....
In lab we studied the Bohr model of the hydrogen atom which is verified exactly with...
In lab we studied the Bohr model of the hydrogen atom which is verified exactly with quantum mechanical calculations. From quantum mechanics we also find that Bohr’s equation can be used for any one-electron cation like He+, Li2+, Be3+ etc, by including the atomic number, Z, of the cation in the equation with Bohr’s constant (): En= -Z2n2(Accurate for any one-electron cation with atomic number Z) Use this equation to calculate the energy (J) of the first and second energy...
CATION ANALYSIS PRE-LABORATORY QUESTIONS Name Date Drawer No. 1. What are the cation symbols and names...
CATION ANALYSIS PRE-LABORATORY QUESTIONS Name Date Drawer No. 1. What are the cation symbols and names by group of the cations you will be studying? Group 2: copper (cu) Group 3: Icon Ife nicke (N) Batium(Ba3) Calciun (ca Group 4: 2. Study the chemistry used to precipitate Cu2" and Ni?". Notice the similarity. What is the chief difference in the procedures to separate each of these cations from the original mixture? Cu adding ste of the solution tower Shift left...
What is the wavelength of electromagnetic energy that could excite an electron in a hydrogen atom...
What is the wavelength of electromagnetic energy that could excite an electron in a hydrogen atom from n=1 to n=3 energy levels? ΔE=-2.18 x 10-18 J ·(1/(n_f^2 )-1/(n_i^2 ))
Post-Laboratory Questions What is the identity of a HYDROGEN-LIKE cation that has the following energy levels? (show calculations) E -3,485 x 10-17 E -8.712 x 10-18 E = -3.872 x 10-J Refer to the diagram below. a) Complete the diagram below to show all possible transitions when electrons go from the n-5 state to the n-2 state in hydrogen? b) Based on the number of transitions, which transition in to n) leads to the most intense line in the line...
13. A photon has an energy of 5.53 x 10-17 J. What is its frequency in s'? [h-6.63 x 10"Js). (4) 14. Infrared radiation from the sun has a wavelength of 6200 nm. Calculate the energy of one photon of that radiation (c = 3.0 x 10 m/s; h = 6.63 x 10-34 J·s). A) B) C) 4.1 x 10-9 J 4.1 x 10-30 J 3.2 x 10-29 D) E) 3.2 x 10-26 J between 10-20 and 10-19 J 15....
(e) The ionization energy of the hydrogen-like He ion equals twice the ionization energy of the hydrogen atom. 2. Experiment A (Atoms and Line Spectra): Calculate the value of the third ionization energy of lithium in J. Bouleu (a) 2.42 x 10-16 (b) 1.96 x 10-17 (c) 2.18 x 10-18 (d) 4.90 x 10-18 (e) 1.96 x 10-19 3. Oxyhemoglobin absorbs photons with energies of 3.67 x 10"" J. What colour is the light of such photons? (a) nonvisible infrared...
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...
POST-LABORATORY QUESTIONS (Show your calculations). 1. A sample of gas weighs 3.10 g and occupies a volume of 1.272 ml at 30 °C and 720 mm Hg. What is the molar mass of the gas? 2.3 moles of hydrogen occupy a volume of 67.20 L, at standard temperature and pressure (STP. 0 °C and 760 mmHg). What is the density of hydrogen at STP? 3.2.5 moles of gas, at 1590 mmHg, occupy a volume of 28.00 L. What is the...
Prelaboratory Assignment: The Atomic Spectra of Hydrogen 1. The helium ion, He', has energy levels similar to those of hydrogen and are given by the equation: E, (-8.72 x 10-" /n') Joules a) Calculate the energy of the four lowest energy levels of the He ion. E,- Joules EJoules Joules Joules b) What is the energy and wavelength associated with the n2 1 transition in He'? kJ/mol; λ= nm c) The strongest lines of the He spectrum occur at the...
CATION ANALYSIS PRE-LABORATORY QUESTIONS Name Date Drawer No. 1. What are the cation symbols and names by group of the cations you will be studying? Group 2: copper (cu) Group 3: Icon Ife nicke (N) Batium(Ba3) Calciun (ca Group 4: 2. Study the chemistry used to precipitate Cu2" and Ni?". Notice the similarity. What is the chief difference in the procedures to separate each of these cations from the original mixture? Cu adding ste of the solution tower Shift left...
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