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
kakasveta [241]
3 years ago
11

Calculate the energies of the n=2 and n=3 states of the hydrogen atom in Joules per atom

Chemistry
1 answer:
kondor19780726 [428]3 years ago
7 0

Answer:

See Explanation

Explanation:

Positional Energy for electron as function of principle energy level (n)

=> Eₙ = -A/n²; A = 2.18x10⁻¹⁸J

Positional Energy for electron in n=2 => E₂ = -2.18x10⁻¹⁸/(2)² = -5.45x10⁻¹⁹J

Positional Energy for electron in n=3 => E₃ = -2.18x10⁻¹⁸/(3)² = -2.42x10⁻¹⁹J

ΔE(n=3→2) = -5.45x10⁻¹⁹J - (-2.42x10⁻¹⁹J) =   -3.03x10⁻¹⁹J

You might be interested in
True or false forces on earth are different from those elsewhere in the universe
Igoryamba
False, other planets have things we have not discovered yet, but for one thing for sure there are storms and hurricanes on other planets as well.
8 0
3 years ago
Our good friend and pseudo scientist, homer simpson, attempts to analyze 300 mg of an unknown compound containing only c and h b
iragen [17]
C_{x}H_{y} + O_{2} --\ \textgreater \  x CO_{2} + \frac{y}{2} H{2}O

540mg H_{2}O* \frac{1 mmol H_{2}O}{18 mg H_{2}O} =30 mmol H_{2}O

\\ \\30 mmolH_{2}O   -have  -  60 mmol H
\\  \\ 60 mmol H* \frac{1mg H}{1 mmol H}    =60 mg H
\\ \\300mg C_{x}H_{y} - 60 mg H= 240 mg C
\\ \\ 240 mgC* \frac{1mmol}{12mg} =20 mmol C

20 mmol C: 60 mmol H=1 mol C : 3 mol H


7 0
4 years ago
What is the percent composition of each element in the compound below:<br> CrPO4
Paha777 [63]
Chromium phosphate pentahydrate
6 0
3 years ago
When alpha particles are used to bombard gold foil, most of the alpha particles pass through undeflected. this result indicates
LuckyWell [14K]
When alpha particles are used to bombard gold foil, most of the alpha particles pass through undeflected. This result of the experiment indicates that most of the volume of a gold atom consists of unoccupied spaces. This was an experiment done by Ernest Rutherford which allowed him to verify the presence of the a small region positive charge in an atom which is called as the nucleus of the atom. Most of the alpha particles pass through the foil while a certain amount were deflected. Those that pass through confirmed that there is a large area that is unoccupied in an atom.
8 0
4 years ago
Write 2 similarities and 2 differences between the digestive system of a Buffalo and humans
lutik1710 [3]

Answer:

The cow digestive system is not at all like the human digestive system. The main difference between the human digestive system and the cow's animal digestive system is simple: Cows have a stomach that consists of four compartments, commonly referred to as four stomachs. Cows spend the better part of the day eating, swallowing and regurgitating their food, and chewing it again before final digestion. Because a cow's teeth mostly grind their food, cows use their tongues – which is why they are so long – to help them gather and grasp grass for pinching off between their incisors and dental pad at the front part of their mouths.

Explanation:

7 0
3 years ago
Other questions:
  • For the isopropyl alcohol solution, what types of intermolecular forces would be experienced by the FD and; C Red 40, Blue 1 and
    15·1 answer
  • Using the ideal gas law and stoichiometry calculations, determine the amount of zinc metal needed to produce 150 ml of h2 gas at
    12·1 answer
  • Which group of extremophiles does thermus aquaticus belong to
    6·2 answers
  • 17 p<br> 18 n<br> What is the atomic number of this element?
    9·1 answer
  • In a container there were 5 L of a gas at 25 °C. If the temperature decreases to -10 °C, what will be the new volume of the gas?
    7·1 answer
  • Which properties are Charateristic of metalloids????????
    14·1 answer
  • Oxygen Supply in Submarines Nuclear submarines can stay under water nearly indefinitely because they can produce their own oxyge
    14·1 answer
  • Unit 2 Test
    6·1 answer
  • Which enzyme "unzips" DNA by breaking hydrogen bonds that hold the bases together?
    6·2 answers
  • Cobalt-59 is the only stable isotope of this transition metal. One ⁵⁹Co atom has a mass of 58.933198 amu. Calculate the binding
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!