1. Gaseous discarbon, C2, is held togrther with a quadruple bond and can be dissociated with...
1. Gaseous discarbon, C2, is held togrther with a
quadruple bond and can be dissociated with light of the appropriate
wavelength. A 10.0 mL sample of discarbon gas at 463.2 mmHg and
105.4 K absorbs 429.15 J of energy and all of the bonds between the
carbon atoms are broken. What wavelength of light, in nm, is needed
to dissociate discarbon?
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1. Gaseous discarbon, C2, is held togrther with a
quadruple bond and can be dissociated with...
1. (4 pts.) By using photons of specific wavelengths, chemists can dissociate gaseous HI molecules to produce H ato...
1. (4 pts.) By using photons of specific wavelengths, chemists can dissociate gaseous HI molecules to produce H atoms and I atoms. What is the longest wavelength (in nm) that can dissociate a single molecule of HI? NOTE: The bond energy of an H-I bond is 296 kJ/mol. [ANSWER: 406 nm. Your work will be evaluated based on its correctness, completeness and organization!]
By using photons of specific wavelengths, chemists can dissociate gaseous HI to produce H atoms with...
By using photons of specific wavelengths, chemists can dissociate gaseous HI to produce H atoms with certain speeds. When HI dissociates, the H atoms move away rapidly, whereas the heavier I atoms move more slowly. Given that the bond energy of H-I is 300.4 kJ/mol, what is the longest wavelength (in nm) that can dissociate a molecule of HI?
By using photons of specific wavelengths, chemists can dissociate gaseous HI to produce H atoms with...
By using photons of specific wavelengths, chemists can dissociate gaseous HI to produce H atoms with certain speeds. When HI dissociates, the H atoms move away rapidly, whereas the heavier I atoms move more slowly. Given that the bond energy of H-I is 286.1 kJ/mol, what is the longest wavelength (in nm) that can dissociate a molecule of HI?
Review Constants Periodic Table The lodine molecule can be photodissociated (broken apart with light) into iodine...
Review Constants Periodic Table The lodine molecule can be photodissociated (broken apart with light) into iodine atoms in the gas phase with light of wavelengths shorter than about 792 nm. A 110.0 mL glass tube contains 41.5 mtorr of gaseous iodine at 20.0 °C. Part A What minimum amount of light energy must be absorbed by the iodine in the tube to dissociate 14.0% of the molecules? Express your answer with the appropriate units. " HA O ? Emin •...
Light of wavelengths shorter than 275 nm can be used to photodissociate the hydrogen molecule into...
Light of wavelengths shorter than 275 nm can be used to photodissociate the hydrogen molecule into hydrogen atoms in the gas phase. A 10.0 mL glass cylinder contains H2(g) at 70.0 mtorr and 25 °C. What minimum amount of light energy must be absorbed by the hydrogen in the tube to dissociate 48.0% of the molecules? energy absorbed: J
1 CO& molecules. Justify your answer. rst ionization energies for Na and K are given in...
1 CO& molecules. Justify your answer. rst ionization energies for Na and K are given in the table below. Na metal reacts vigorously with water to form hydrogen gas and a metal hydroxide. K metal reacts vigorously as well, but it bursts into a violet-colored flame Element First Ionization Energy (J/mol) Na 4.95 x 105 4.19 x 10s Based on principles of atomic structure, explain why the first ionization energy of K is lower than the first A student hypothesizes...
By using photons of specific wavelengths, chemists can dissociate gaseous HI to produce H atoms with...
By using photons of specific wavelengths, chemists can dissociate gaseous HI to produce H atoms with accurately known speeds. When HI dissociates, the H atoms move away rapidly, whereas the relatively heavy I atoms move little. Use Table 9.2 in your textbook to answer the following questions: (a) What is the longest wavelength (in nm) that can dissociate a molecule of HI? 4.9) 406 nm (b) If a photon of 226 nm is used, what is the excess energy (in...
1. The 1-1 bond of iodine (12) can be broken (creating two separate I atoms) with...
1. The 1-1 bond of iodine (12) can be broken (creating two separate I atoms) with electromagnetic radiation. What is the longest wavelength (lowest energy) photon which has sufficient energy to break the 1-1 bond if the energy of the bond is 151 kJ mol'? (show all work, 4 pts) b) Would a photon of this wavelength be best characterized as X-ray, microwave, or infrared electromagnetic radiation? (1 pt) 2. Consider a green laser that emits photons at 532 nm....
1. Carbon nanotubes are large cylindrical molecules made up of a network of covalently bound carb...
1. Carbon nanotubes are large cylindrical molecules made up of a network of covalently bound carbon atoms. The electrons in carbon nanotubes can be considered as particles in a one-dimensional box. For a nanotube of length 30 nm what is the probability of an electron being within 10 nm of the centre of nanotube if the electron is in the state n 3? a. b. What wavelength of light is needed to excite the electron from the n-2 to n...
please use the reference confused how to get from reference thank you. it's practice for me....
please use the reference confused how to get from
reference thank you. it's practice for me.
8. When ethanol (alcohol) is processed by the body it is oxidized to acetic acid. The reaction is given below. Provide an estimate of the enthalpy for this chemical reaction. CH3CO,H + H,0, (10 points) 0 atoms on the other carbon and one OH bond) Reaction: CH3CH2OH@ + 02 (Note: Acetic acid has 3H atoms on one carbon, 2 Constants: -34 J-s e= 3.00...
1. (4 pts.) By using photons of specific wavelengths, chemists can dissociate gaseous HI molecules to produce H atoms and I atoms. What is the longest wavelength (in nm) that can dissociate a single molecule of HI? NOTE: The bond energy of an H-I bond is 296 kJ/mol. [ANSWER: 406 nm. Your work will be evaluated based on its correctness, completeness and organization!]
Review Constants Periodic Table The lodine molecule can be photodissociated (broken apart with light) into iodine atoms in the gas phase with light of wavelengths shorter than about 792 nm. A 110.0 mL glass tube contains 41.5 mtorr of gaseous iodine at 20.0 °C. Part A What minimum amount of light energy must be absorbed by the iodine in the tube to dissociate 14.0% of the molecules? Express your answer with the appropriate units. " HA O ? Emin •...
1 CO& molecules. Justify your answer. rst ionization energies for Na and K are given in the table below. Na metal reacts vigorously with water to form hydrogen gas and a metal hydroxide. K metal reacts vigorously as well, but it bursts into a violet-colored flame Element First Ionization Energy (J/mol) Na 4.95 x 105 4.19 x 10s Based on principles of atomic structure, explain why the first ionization energy of K is lower than the first A student hypothesizes...
By using photons of specific wavelengths, chemists can dissociate gaseous HI to produce H atoms with accurately known speeds. When HI dissociates, the H atoms move away rapidly, whereas the relatively heavy I atoms move little. Use Table 9.2 in your textbook to answer the following questions: (a) What is the longest wavelength (in nm) that can dissociate a molecule of HI? 4.9) 406 nm (b) If a photon of 226 nm is used, what is the excess energy (in...
1. The 1-1 bond of iodine (12) can be broken (creating two separate I atoms) with electromagnetic radiation. What is the longest wavelength (lowest energy) photon which has sufficient energy to break the 1-1 bond if the energy of the bond is 151 kJ mol'? (show all work, 4 pts) b) Would a photon of this wavelength be best characterized as X-ray, microwave, or infrared electromagnetic radiation? (1 pt) 2. Consider a green laser that emits photons at 532 nm....
1. Carbon nanotubes are large cylindrical molecules made up of a network of covalently bound carbon atoms. The electrons in carbon nanotubes can be considered as particles in a one-dimensional box. For a nanotube of length 30 nm what is the probability of an electron being within 10 nm of the centre of nanotube if the electron is in the state n 3? a. b. What wavelength of light is needed to excite the electron from the n-2 to n...
please use the reference confused how to get from
reference thank you. it's practice for me.
8. When ethanol (alcohol) is processed by the body it is oxidized to acetic acid. The reaction is given below. Provide an estimate of the enthalpy for this chemical reaction. CH3CO,H + H,0, (10 points) 0 atoms on the other carbon and one OH bond) Reaction: CH3CH2OH@ + 02 (Note: Acetic acid has 3H atoms on one carbon, 2 Constants: -34 J-s e= 3.00...
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