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##### Asked by: Chanda Hubbertz

science chemistry# How was Avogadro's number?

Last Updated: 10th May, 2020

**Avogadro's number**is closely related to the Loschmidt

**constant**, and the two concepts are sometimes confused.) It was initially defined by Jean Perrin as the

**number**of atoms in 16 grams of oxygen. In particular, when carbon-12 was the reference, one mole of carbon-12 was exactly 12 grams of the element.

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Also, how was Avogadro's number determined?

If you divide the charge on a mole of electrons by the charge on a single electron you obtain a value of **Avogadro's number** of 6.02214154 x 10^{23} particles per mole.

One may also ask, why is Avogadro's number referred to as a mole? Key Takeaways: How the **Mole** Units Got Its Name The **mole** is a unit used in chemistry that is equal to **Avogadro's number**. It is the **number** of carbon atoms in 12 grams of the isotope carbon-12. The word **mole** comes from the word molecule. It is not related in any way to the animal **called** the **mole**.

Also, what is Avogadro's number and what does it mean?

**Definition** of **Avogadro's number**. : the **number** 6.022 × 10^{23} indicating the **number** of atoms or molecules in a mole of any substance. — called also Avogadro **number**.

Why do we use Avogadro's number?

Re: When to **use Avogadro's number** So if **you** have half of a mole then **you**'ll have 3.011 x10^23 molecules, atoms or particles. So **Avogadro's number** is really important to connect the macroscopic quantities like grams with the microscopic quantity like **number** of atoms.