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Leno4ka [110]
3 years ago
8

(a) What is the frequency of light of 405 nm wavelength?​

Chemistry
1 answer:
slega [8]3 years ago
6 0

 f = 7.4 x 10²⁰s⁻¹

Explanation:

Given parameters:

wavelength of light = 405 x 10⁻⁹m or 405nm

Unknown:

Frequency of light = ?

Solution:

We can solve this problem using the wave equation:

                  V = f∧

where V is the velocity of light = 3 x 10⁸m/s

           f is the unknown frequency

           ∧ is the wavelength of light

          making f the subject:

                   f = \frac{V}{wavelength} = \frac{3 x 10[tex]^{8}}{405 x 10^{-9}}[/tex]

                   f = 7.4 x 10²⁰s⁻¹

Learn more:

wavelength brainly.com/question/6352445

#learnwithBrainly

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HOPE IT HELPS!
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Which statement justifies that hydrogen peroxide (H2O2) is a polar molecule?
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2) shape of the molecule to conclude whether there is a net dipole momentum.

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Regarding the shape, it may appear that the molecule is symmetrical, which would lead to the cancellation of the two dipoles. But that is not the true. The H2O2 is not symmetrical.

The lewis structure just show this shape

      **   **
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      **   **

which is what may induce to think that the molecule is symmetrical, leading to the misconception that it is nonpolar.

But in a three dimensional arrangement you could see that the hydrogens are placed in non symmetrical positions, which leads to the formation of a net dipole momentum, and thus to a polar molecule.

The fact that H2O2 is a polar compound is the reason why it can be mixed with water and the H2O2 that you buy in the pharmacy is normally a solution in water.

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3 years ago
How are saturated and supersaturated solutions similar?
Serggg [28]

Answer:

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Explanation:

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What is the equilibrium constant?

The relationship between a reaction's products and reactants with regard to a certain unit is expressed by the equilibrium constant(K) This article introduces the mathematics needed to determine the partial pressure equilibrium constant as well as how to formulate expressions for equilibrium constants. By allowing a single reaction to reach equilibrium and then measuring the concentrations of each chemical participating in that reaction, one can determine the numerical value of an equilibrium constant. it is the ratio of product concentrations to reactant concentrations. The equilibrium constant for a given reaction is unaffected by the initial concentrations because the concentrations are measured at equilibrium.

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