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## What does 1 mole H2O mean?

The chemical formula for water is H2O which means that every molecule of water has 2 atoms of hydrogen (H) and one atom of oxygen (O). … If we have one mole of water, then we know that it will have a mass of 2 grams (for 2 moles of H atoms) + 16 grams (for one mole O atom) = 18 grams.

## How do you calculate 1 mole of H2O?

Mass of two moles of Hydrogen atoms = 2x 1 g/mol = 2 g/mol. On adding all the above-obtained values we get, Mass of one mole of water = **2 g/mol + 16 g/mol = 18 g/mol**.

## 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… … Notice that the definition of the mole is an amount of substance.

## How do u get moles?

What Causes a Mole? Moles **occur when cells in the skin grow in a cluster instead of being spread throughout the skin**. These cells are called melanocytes, and they make the pigment that gives skin its natural color. Moles may darken after exposure to the sun, during the teen years, and during pregnancy.

## How many moles are in 20 grams of co2?

ANSWER: **1 mole** of carbon-12 has 6.02 x 1023 atoms. Second, you need to know how many moles there are in 20 grams of carbon-12. One mole of anything is the same number of grams as the molecular mass.

## What is the mole of 1 mole of water?

The number of atoms is an exact number, the number of mole is an exact number; they do not affect the number of significant figures. The average mass of one mole of H2O is **18.02 grams**. This is stated: the molar mass of water is 18.02 g/mol.

## What is the 1 mole of water?

A mole is a unit measuring the quantity of anything. Water (H_{2}O) is made from 2 atoms of hydrogen and 1 atom of oxygen. A mole of water molecules would be 2 moles of hydrogen atoms plus 1 mole of oxygen atoms. Therefore, one mole of water weighs **18.0152 grams**.

## How many molecules are in a mole?

Avogadro’s Number and the Mole. The mole is represented by Avogadro’s number, which is **6.022×10 ^{23} atoms** or molecules per mol.