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## What is the mole useful in counting?

One of the most fundamental units of measure in chemistry is the mole. We use it to **count large amounts of tiny things, like atoms, molecules, and ions**. Historically, the mole has been defined as the number you get if you sit down and count all of the 12C atoms in a 12 g (0.012 kg) sample.

## Why is the mole used for counting in chemistry?

The mole is important **because it allows chemists to work with the subatomic world with macro world units and amounts**. Atoms, molecules and formula units are very small and very difficult to work with usually. … A mole of something represents 6.022×1023 items. Whether it be atom, molecule or formula unit.

## Are moles used to simplify the counting of atoms?

Therefore, the **mole** is used to simplify calculations of a collection of particles (molecules, atoms, ions, etc). One mole is 6.022 x 10^{23}. It’s also known as Avogadro’s number.

## What is the formula of mole?

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. To convert from atoms to moles, divide the atom amount by Avogadro’s number (or multiply by its reciprocal).

## Why is a mole 6.022 x10 23?

The mole (abbreviated mol) is the SI measure of quantity of a “chemical entity,” such as atoms, electrons, or protons. It is defined as the amount of a substance that contains as many particles as there are atoms in 12 grams of pure carbon-12. So, 1 mol contains 6.022×10^{23}**elementary entities of the substance**.

## Why did Avogadro call it a mole?

That long number is called Avogadro’s number **after the early 19th-century** Italian scientist Amadeo Avogadro. The mass of one mole of something in grams is the mass of that substance in atomic mass units. … Since the small, microscopic action was at the molecular level, he dubbed the large, visible action the molar level.

## Who gave the term mole?

It is named after **the 19th-century Italian physicist Amedeo Avogadro**, who found that under the same temperature and pressure, two gases with the same volume have the same number of molecules.

## What is the formula for moles to grams?

Moles to Grams Conversion Formula. In order to convert the moles of a substance to grams, you will need to **multiply the mole value of the substance by its molar mass**.

## How do you convert moles to atoms?

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**. To convert from atoms to moles, divide the atom amount by Avogadro’s number (or multiply by its reciprocal).

## What is the importance of mole Class 9?

atoms and molecules are very small and the mole concept **allows us to count atoms and molecules by weighing macroscopic amounts of material**.

## What are the two things that a mole represents?

**Expert Answer:**

- A mole represents two things:
- It represents a definite amount of the substance i.e. an amount of substance equal to its gram atomic mass or gram molecular mass.
- It represents a definite number (6.022 × 10
^{23}) of atoms, molecules or ions of a substance.