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## What is the energy of 1 mol?

It is also a SI derived unit of molar thermodynamic energy defined as the energy equal to **one joule** in one mole of substance. Since 1 mole = 6.02214076×10^{23} particles (atoms, molecules, ions etc.), 1 joule per mole is equal to 1 joule divided by 6.02214076×10^{23} particles, 1.66054×10^{−}^{24} joule per particle.

## How much energy is 3 moles photons?

Each photon has an energy of 2.9450×10^{–}^{19} J. 1 mol of a photon has 6.022×10^{23} photons. The answer is option A), In 3.00 moles of photons with a wavelength of 675 nm, the energy is **532 kJ**.

## What can moles be converted to?

Avogadro’s number is a very important relationship to remember: 1 mole = 6.022×1023 6.022 × 10 23 atoms, molecules, protons, etc. To convert from moles to atoms, **multiply the molar amount by Avogadro’s number**.

## How do you find the energy of one mole?

**Multiply by Avogadro’s Number**. **Multiply the photon energy value by Avogadro’s number** to find the energy of one mole of photons. Avogadro’s number is the quantity of the number of molecules or particles in one mole of a particular substance and is equal to 6.02 x 10^{23}.

## How do you convert moles to joules?

**Divide the number of joules released in the reaction by the known joules per mole constant** for that type of reaction. For example, if a reaction between sodium hydroxide and water releases 30,000 joules of energy, divide 30,000 by 55,200 to get . 54 moles.

## How do you convert energy to kJ mol?

However, nuclear binding energy is often expressed as kJ/mol of nuclei or as MeV/nucleon. To convert the energy to kJ/mol of nuclei we will simply employ the conversion factors for converting joules into kilojoules (**1 kJ = 1000 J**) and for converting individual particles into moles of particles (Avogadro’s Number).

## How do you calculate change in energy?

**To calculate an energy change for a reaction:**

- add together the bond energies for all the bonds in the reactants – this is the ‘energy in’
- add together the bond energies for all the bonds in the products – this is the ‘energy out’
- energy change = energy in – energy out.

## What is the energy of one mole of photons with 540 nm?

The energy of 1 mole of the photon is **3.68 × 10 ^{–}^{19} J**.

## How do you calculate the energy of a photon?

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.

## How do you convert moles?

**Mole Conversion Tips for Chemistry**

- Converting from mass (grams) to moles: Divide your initial mass by the molar mass of the compound as determined by the periodic table.
- Converting from moles to mass (grams): Multiply your initial mole value by the molar mass of the compound as determined by the periodic table.