1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Lubov Fominskaja [6]
3 years ago
11

What is the radius of a hydrogen atom whose electron is bound by 0.544 ev? express your answer with the appropriate units?

Chemistry
1 answer:
insens350 [35]3 years ago
6 0
First, we need to calculate the principal quantum number n for this electron, using the equation:
E = (-13.60 eV) / (n x n)
where E is the energy that is used to bound the electron (here, E = - 0.544 eV).
- 0.544 eV = (-13.60 eV) / (n x n)
n x n = (- 13.60 eV) / (- 0.544 eV)
n x n = 25
n = 5

The orbital radius that is equal to the radius of a hydrogen atom is calculated using the equation:
r = 0.053 nm x n x n
r = 0.053 nm x 5 x 5
r = 0.053 nm x 25
r = 1.325 nm
You might be interested in
A hiker climbs a hill. How does the potential energy of the hiker change as she climbs higher?
zloy xaker [14]
The answer should be A
6 0
3 years ago
Predict the aldol product when the following ketone undergoes self-condensation in the presence of NaOH. Do not show the dehydra
Anit [1.1K]

Answer:

β-hydroxyaldehyde (an aldol) namely 3-Hydroxy butanal.

Explanation:

When acetaldehyde is treated with dil.NaOH it undergoes self condensation as it contains alpha-hydrogen atom in its compound forming β-hydroxyaldehyde (an aldol) namely 3-Hydroxy butanal. This compound upon further heating will eliminate a molecule of water forming aldol condensation product namely Crotonaldehyde Or But-2-en-al. see the diagram attached.

5 0
3 years ago
Help with stochiometry asap
Fudgin [204]
For every 2 Mol NaOH you would get 1 Mol N2H4
8 0
2 years ago
Calculate the standard entropy of vaporization of ethanol, C2H5OH, at 285.0 K, given that the molar heat capacity at constant pr
MArishka [77]

Answer: The standard entropy of vaporization of ethanol is 0.275 J/K

Explanation:

C_2H_5OH(l)\rightleftharpoons C_2H_5OH(g)

Using Gibbs Helmholtz equation:

\Delta G=\Delta H-T\Delta S

For a phase change, the reaction remains in equilibrium, thus \Delta G=0

\Delta H=T\Delta S

Given: Temperature = 285.0 K

\Delta H=78.3J/mol

Putting the values in the equation:

78.3J=285.0K\times \Delta S

\Delta S=0.275J/K

Thus  the standard entropy of vaporization of ethanol is 0.275 J/K

4 0
3 years ago
What is the product of a force and the time during which the force acts
ELEN [110]

Impulse is the product of a force and the time during which that force acts on a body.

7 0
3 years ago
Other questions:
  • What do you predict would happen if you conducted this experiment using sulfur hexafluoride (sf6) which is much heavier than met
    11·1 answer
  • Draw a molecular model of sulfur trioxide.
    6·1 answer
  • Which one is it (it’s multiple choice too)
    13·1 answer
  • If a person swallows acetone what are the procedures that should be followed
    9·2 answers
  • Which element would have similar properties to Sulfur? Chlorine O a ob Fluorine Oxygen Nitrogen​
    6·1 answer
  • Which picture accurately represents the type of orbital occupied by the electrons in a beryllium atom
    7·1 answer
  • I need help I have to pass to graduate
    15·1 answer
  • If you lose half of your mass, its gravity will.. causing the tides to ..
    13·1 answer
  • HELP FAST PLZ!!!!!!!!!!!!!_____ energy from the outlet transfers energy to the light bulband
    15·2 answers
  • Does ccl4 has resonance structures
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!