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
slega [8]
3 years ago
7

(5points) Na2[Fe(OH2)2(OH)I3]absorbs photons with energy of 191kJ/mol. Calculate the wavelength (in nm) for a photon absorbed by

this complex. Please show all of your work for full credit.
Chemistry
1 answer:
AfilCa [17]3 years ago
6 0

Answer:

626.7nm

Explanation:

The energy of a photon is defined as:

E = hc / λ

<em>Where E is the energy of the photon, h is Planck constant (6.626x10⁻³⁴Js), c is speed of light (3x10⁸m/s) and </em>λ is the wavelength of light

The energy of 1 photon is:

(191000 J / mol) ₓ (1 mole / 6.022x10²³) = 3.1717x10⁻¹⁹ J

Replacing:

3.1717x10⁻¹⁹ J = <em>6.626x10⁻³⁴Jsₓ3x10⁸m/s /  </em>λ

λ = 6.267x10⁻⁷m

as 1nm = 1x10⁻⁹m:

6.267x10⁻⁷m ₓ (1nm / 1x10⁻⁹m) =

<h3>626.7nm</h3>
You might be interested in
How many atoms of S are there?
jonny [76]
Atoms of sulfur = 9.60⋅g32.06⋅g⋅mol−1×6.022×1023⋅mol−1 . Because the units all cancel out, the answer is clearly a number, ≅2×1023 as required.
4 0
3 years ago
Read 2 more answers
The value of the entropy change for the process N₂ (g) + 3H₂ (g) --&gt; 2NH₃ (g) is ________.
kodGreya [7K]

Answer:

negative

Explanation:

Entropy is a measure of the "disorder" in a system.

In this reaction, the amount of disorder decreases. This is because one gas molecule (NH₃) has more order than two gas molecules (N₂ and H₂). Therefore, the entropy change should be negative.

5 0
1 year ago
Which element would you expect to have properties similar to Chlorine (Cl)
jeyben [28]

Answer:

Iodine

Explanation:

It's in the same group as chlorine.

5 0
3 years ago
How many calories are needed to melt 30 grams of copper
hjlf
The amount of calories you weight
7 0
3 years ago
What happens during mitosis?
Ludmilka [50]
A eukaryotic cell goes through nuclear division creating two identical daughter cells.
6 0
3 years ago
Read 2 more answers
Other questions:
  • Write the complete/total ionic equation for the precipitation reaction that occurs when aqueous iron(II)nitrate is added to aque
    8·1 answer
  • What element is represented by the chemical symbol V​
    5·2 answers
  • Ice (H2O) melting at 273 K and 1 atm has = 6.01 kJ/mol and = 6.01 kJ/mol while water vaporizing under the same conditions has =
    7·1 answer
  • Suppose an alkane had 30 hydrogen atoms. How many carbon atoms would it have?
    11·2 answers
  • Calculate the [ OH − ] and the pH of a solution with an [ H + ] = 0.090 M at 25 °C . [ OH − ] = M pH = Calculate the [ H + ] and
    15·1 answer
  • Please help!!
    8·1 answer
  • What is the molar mass of this hydrate?
    15·1 answer
  • What product or ratio of properties remains constant (PxT, TxV, P/V, V/T, etx)?When you have decided, label the "constant?" colu
    7·1 answer
  • A gas has a volume of 6.35 L at 88.6 kPa. What will be the volume at standard pressure? Standard Pressure = 101.3 kPa
    8·1 answer
  • Los materiales sinteticos tienen implicaciones en el medio ambiente​
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!