The unit of energy of photons is Joule. In one mole, there are **6.023×1023** 6.023 × 10 23 photons of light.

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## Is a photon equal to a mole?

In photobiology, the einstein (symbol E) is defined as one mole of photons. As such, photosynthetically active radiation (PAR) may be reported in microeinsteins per second per square meter (μE⋅m−2⋅s−1). The einstein is not part of the International System of Units (SI) and is redundant with the mole.

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## How can I find the number of photons?

=E hcλ=(6.63×10−34J s)×(3×108ms−1)(632.8×10−9m)=3.14×10−19J. The energy of the laser emitted per second is 5×10−3J. Thus the number of photons emitted per second=5×10−3J)3.14×10−19J=1.6×1016. Q.

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## What is the energy of 2 moles of photons?

=3990.2 kJ mol−1.

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## Does Avogadro’s number apply to photons?

The mole is Avogadro’s number of anything—substances or even photons.

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## How much energy is in a mole of photons?

Energy of one mole of photon =199. 84 kJ.

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## What is 1 mole of photons?

In photobiology, the einstein (symbol E) is defined as one mole of photons. As such, photosynthetically active radiation (PAR) may be reported in microeinsteins per second per square meter (μE⋅m−2⋅s−1). The einstein is not part of the International System of Units (SI) and is redundant with the mole.

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## What is the energy of the photons?

The energy of a single photon is: hν or = (h/2π)ω where h is Planck’s constant: 6.626 x 10-34 Joule-sec. One photon of visible light contains about 10-19 Joules (not much!) the number of photons per second in a beam.

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## What is energy of one mole of proton?

Energy of one mole of protons =E×NA=6×10−16×6. 023×1023=36. 138×107≈3. 6×108.

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## Is a photon a mole?

In photobiology, the einstein (symbol E) is defined as one mole of photons. As such, photosynthetically active radiation (PAR) may be reported in microeinsteins per second per square meter (μE⋅m−2⋅s−1). The einstein is not part of the International System of Units (SI) and is redundant with the mole.

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## How many photons are in one mole?

The unit of energy of photons is Joule. In one mole, there are 6.023×1023 6.023 × 10 23 photons of light.

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## What is a photon equivalent to?

A photon is a particlelike packet of electromagnetic energy. The energy E of a photon is equal to hv = hc/λ, where v is the frequency of the electromagnetic radiation and λ is its wavelength.

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## What is 1 mole equal to?

The value of the mole is equal to the number of atoms in exactly 12 grams of pure carbon-12 (12 g C = 1 mol C atoms = 6.022 × 1023 C atoms).

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## What is the equation to calculate number of photons?

According to the equation E=n⋅h⋅ν (energy = number of photons times Planck’s constant times the frequency), if you divide the energy by Planck’s constant, you should get photons per second.

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## What is photon formula?

The Photon energy formula is given by, E = h c λ Where. E = photon energy, h = Planck’s constant (6.626×10−34 Js)

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## Can Avogadro’s number be used for photons?

Things to understand about Avogadro’s number Its practical use is limited to counting tiny things like atoms, molecules, “formula units”, electrons, or photons.

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## Can you have a mole of photons?

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## What determines the number of photons?

= 199.51 KJ mol−1.