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
Which object forms when a supergiant explodes
klasskru [66]

black hole

hope it helps

edit: neutron star

3 0
3 years ago
Read 2 more answers
Can you help me please
irina [24]

Answer:

Concentrated solutions

7 0
3 years ago
Write the chemical equation for fot the reaction between mgcl2 and the soap you preapred
In-s [12.5K]
Soap is the sodium or potassium salt of long chain of fatty acid. Fatty acids when treated with NaOH or KOH forms Soap. This process is called as Saponification. Examples of Soap are as follow,

                                     1.  Sodium Stearate C₁₇H₃₅COONa
                                   
                                     2.  Potassium Oleate C₁₇H₃₃COOK

Reaction of Soap with MgCl₂;

When Soap is treated with MgCl₂ or CaCl₂ it forms insoluble precipitate called S.C.U.M. The reactions with MgCl₂ are as follow,

                2C₁₇H₃₅COONa + MgCl₂  -------->  2C₁₇H₃₅COOMg  + 2 NaCl

                2C₁₇H₃₃COOK   + MgCl₂  -------->  2C₁₇H₃₅COOMg  + 2 KCl

These reaction are often found in hard water. And this reaction decreases the effectiveness of soap.
5 0
3 years ago
Would the solubility for a substance increase by dissolving the solute with more water?
garik1379 [7]

Answer: Yes

Explanation:

With more water, the molecules of the substance have more water molecules to form bonds with, thus they are dissolved even faster at that same particular temperature.

For example: a mildly soluble substance like powdered milk get more dissolved in your teacup as water, the solvent is increased

8 0
3 years ago
Which type of wave interaction is shown by the water waves in the photo?
Neko [114]
I think A but I’m not sure so
8 0
3 years ago
Read 2 more answers
Other questions:
  • what mass of lithium chloride, licl must be dissolved to make a 0.194M solution that has volume of 1.00 l
    6·1 answer
  • The two oxygen atoms forming molecules of oxygen gas that you breath are joined by a polar covalent bond. Explain why this state
    5·1 answer
  • Which group on the periodic table already stable?
    15·2 answers
  • Shield volcanoes form from _______-viscosity lava; composite volcanoes form from _______-viscosity lava.
    10·1 answer
  • I will give brainliest. Which one of the choices below is the best definition of a force?
    14·2 answers
  • A sealed vessel initially contains 100 g of chlorine gas and 90 g of hydrogen gas. The two gases undergo reaction to form HCl. W
    9·1 answer
  • Using the example of an ambulance, explain the Doppler Effect. Infer why the doppler effect can or cannot occur in all waves. PL
    9·1 answer
  • Calculate the pOH and the pH of a 5.0 x 10-2 M solution of NaOH.
    11·1 answer
  • Question ( please help me )
    7·1 answer
  • The force of attraction between two masses of different substances that are in contact
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!