**Contents**show

## What is meant by 1 mole?

A mole is the **amount (10) of material containing 6.02214 × 10 ^{23} particles**. 1 mol = 6.02214 × 10

^{23}particles. This number is also called Avogadro’s number… …

## How much is a 1 mole?

One mole of a substance is equal to **6.022 × 10²³ units** of that substance (such as atoms, molecules, or ions). The number 6.022 × 10²³ is known as Avogadro’s number or Avogadro’s constant.

## How do you calculate moles of magnesium?

**Example calculation:**

- Mass magnesium = 2.39 g.
- Mass magnesium oxide = 3.78 g.
- So mass oxygen = 1.39 g.
- Number moles Mg = 2.39/24 = 0.0995.
- Number moles O = 1.39/16 = 0.0868.
- Divide by the smallest to give the ratio aproximately 1 Mg : 1 O.
- This would suggest a formula of MgO, which is the correct formula.

## What is mole with example?

A mole corresponds to the **mass of a substance that contains 6.023 x 10 ^{23} particles of the substance**. The mole is the SI unit for the amount of a substance. Its symbol is mol. By definition: 1 mol of carbon-12 has a mass of 12 grams and contains 6.022140857 x 10

^{23}of carbon atoms (to 10 significant figures). Examples.

## 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**.

## How do you calculate 1 mole of NaCl?

If you had the compound sodium chloride (NaCl), you would **add the mass of 1 mol of sodium and 1 mol of chlorine**. This would give you the mass of 1 mol of sodium chloride which would be about 58.443 g.

## What is meant by 1 mole of carbon atoms?

A mole can be defined as the amount of a pure substance containing the same number of atoms, molecules or ions as present in exactly 12g of carbon. … Therefore, a mole of carbon atoms refers to a **group of 6.022 × 10 ^{23} carbon atoms**.

## How many grams of magnesium are in 1 mole?

For example, one atom of magnesium weighs 24.31 amu (atomic mass units). However, one mole of magnesium weighs **24.31 g**. (Moles were planned that way!) Since one mole of MgCl2 consists of one mole of magnesium and two moles of chlorine, the mass of one mole of MgCl2 must be the sum of the masses of the elements.

## How many moles is .55 grams of magnesium?

How many moles is 0.55 g of magnesium (Mg)? 55g Mg I Imol =,**023 mol** Mg. 184.21a 1.13.

## How many moles of Mg reacts with 1 mole of HCL?

This is called the stoichiometry of a reaction. This balanced chemical equation shows that 1 mole of magnesium reacts with **2 moles** of hydrochloric acid to form 1 mole of magnesium chloride and 1 mole of hydrogen.