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(d) An electron in a hydrogen atom transitions from a 4p orbital to a 1s orbital and emits a photon with an energy of 2.04 x 10-18J. Calculate are the frequency and wavelength (in nm) of this light. (e) Give the possible quantum numbers for the electrons in the 4p and 1s orbital. Also, draw the + orbitals. Orbital 4p 1s n 1 mi ms, Orbital sketch

(d) An electron in a hydrogen atom transitions from a 4p orbital to a 1s orbital and emits a photon with an energy of 2.04 x 10-18J. Calculate are the frequency and wavelength (in nm) of this light. (e) Give the possible quantum numbers for the electrons in the 4p and 1s orbital. Also, draw the + orbitals. Orbital 4p 1s n 1 mi ms, Orbital sketch

Chemistry
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ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
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**(d)** An electron in a hydrogen atom transitions from a 4p orbital to a 1s orbital and emits a photon with an energy of \(2.04 \times 10^{-18}\) J. Calculate the frequency and wavelength (in nm) of this light. **(e)** Give the possible quantum numbers for the electrons in the 4p and 1s orbital. Also, draw the orbitals. | Orbital | \(n\) | \(l\) | \(m_l\) | \(m_s\) | Orbital sketch | |---------|-------|-------|--------|-------|--------------| | 4p | | | | | | | 1s | | | | | |
Transcribed Image Text:**(d)** An electron in a hydrogen atom transitions from a 4p orbital to a 1s orbital and emits a photon with an energy of \(2.04 \times 10^{-18}\) J. Calculate the frequency and wavelength (in nm) of this light. **(e)** Give the possible quantum numbers for the electrons in the 4p and 1s orbital. Also, draw the orbitals. | Orbital | \(n\) | \(l\) | \(m_l\) | \(m_s\) | Orbital sketch | |---------|-------|-------|--------|-------|--------------| | 4p | | | | | | | 1s | | | | | |
### Reaction of Ammonia and Hydrogen Chloride to Form Ammonium Chloride 1. **Chemical Reaction:** \[ \text{NH}_3(g) + \text{HCl}(g) \rightarrow \text{NH}_4\text{Cl}(s) \] Two 1.50 L flasks at 20.0 °C are connected by a valve, as shown below: - **Left Flask:** - Contains 3.00 g of \(\text{NH}_3(g)\) - Volume: 1.50 L - Temperature: 20.0 °C - Molar Mass of \(\text{NH}_3\): 17.0 g/mol - **Right Flask:** - Contains 3.00 g of \(\text{HCl}(g)\) - Volume: 1.50 L - Temperature: 20.0 °C - Molar Mass of \(\text{HCl}\): 36.5 g/mol When the valve is opened, gases react until one is completely consumed. 2. **Questions:** **(a)** As soon as the gases mix, before they react, what will be the partial pressure of \(\text{HCl}(g)\)? **(b)** Which gas will remain in the system after the reaction is complete? Calculate its grams. **(c)** At the end of the reaction, the contents are cooled in a refrigerator at 4.0 °C. What will be the final pressure of the system? (Neglect the volume of the ammonium chloride formed.) ### Diagram Explanation: The diagram shows two spherical flasks connected by a valve. Each flask initially contains a different gas (\(\text{NH}_3\) or \(\text{HCl}\)), both at the same conditions of volume and temperature. The valve's opening allows the gases to mix and potentially react to form a solid, \(\text{NH}_4\text{Cl}\).
Transcribed Image Text:### Reaction of Ammonia and Hydrogen Chloride to Form Ammonium Chloride 1. **Chemical Reaction:** \[ \text{NH}_3(g) + \text{HCl}(g) \rightarrow \text{NH}_4\text{Cl}(s) \] Two 1.50 L flasks at 20.0 °C are connected by a valve, as shown below: - **Left Flask:** - Contains 3.00 g of \(\text{NH}_3(g)\) - Volume: 1.50 L - Temperature: 20.0 °C - Molar Mass of \(\text{NH}_3\): 17.0 g/mol - **Right Flask:** - Contains 3.00 g of \(\text{HCl}(g)\) - Volume: 1.50 L - Temperature: 20.0 °C - Molar Mass of \(\text{HCl}\): 36.5 g/mol When the valve is opened, gases react until one is completely consumed. 2. **Questions:** **(a)** As soon as the gases mix, before they react, what will be the partial pressure of \(\text{HCl}(g)\)? **(b)** Which gas will remain in the system after the reaction is complete? Calculate its grams. **(c)** At the end of the reaction, the contents are cooled in a refrigerator at 4.0 °C. What will be the final pressure of the system? (Neglect the volume of the ammonium chloride formed.) ### Diagram Explanation: The diagram shows two spherical flasks connected by a valve. Each flask initially contains a different gas (\(\text{NH}_3\) or \(\text{HCl}\)), both at the same conditions of volume and temperature. The valve's opening allows the gases to mix and potentially react to form a solid, \(\text{NH}_4\text{Cl}\).
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