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## What is the mass of moles of water molecules?

The average mass of one H2O molecule is 18.02 amu. 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.

## What is a mole of water molecules?

A mole (mol) is the amount of a substance that contains 6.02 × 10 ^{23} representative particles of that substance. The mole is the SI unit for amount of a substance. Just like the dozen and the gross, it is a name that stands for a number. There are therefore 6.02 × 10 ^{23} water molecules in a mole of water molecules.

## What is the mass of molecules of water?

We can calculate the mass of one molecule of water by dividing the mass of one mole of water to the Avogadro number of atoms. we have calculated the mass of one molecule of water as 2.989×10−23g.

## Is the mass of 0.5 mole of water molecules?

Mass of 0.5 mole of water is 9g.

## What is the mass of 2 moles of water molecules?

One mole of water has a molecular mass of 18 grams. Two moles of water have a molecular mass of 18×2=36 grams. Thus the molecular mass of two moles of water is 36 grams.

## What is the mass of 2 mole of water?

One mole of H2 O is made up of 2 moles of Hydrogen atoms and 1 mole of Oxygen atom. Mass of two moles of Hydrogen atoms = 2x 1 g/mol = 2 g/mol. Mass of one mole of water = 2 g/mol + 16 g/mol = 18 g/mol.

## How many molecules of water are there in a mole of water?

So, 1 mole of H atoms is there. Originally Answered: How many atoms are present in 1 mole of water? How many molecules are there in one mole of water (or of any other compound)? You should have learned in chemistry that one mole corresponds to Avogadro’s number of particles.

## What is 1 mole of a molecule?

One mole of anything is 6.022×1023 objects of anything. You may recognize 6.022×1023 as Avogadro’s number. One mole of molecules is 6.022×1023 molecules.

## How do you calculate water molecules?

Using Avogrado’s Number

Avogadro’s number tells us there are 6.022 x 10^{23} molecules of water per mole of water. So, next we calculate how many molecules there are in a drop of water, which we determined contains 0.002775 moles: molecules in a drop of water = (6.022 x 10^{23} molecules/mole) x 0.002275 moles.

## What is the mass of 1 mole of water and 0.5 mole of co2?

Thus, the mass of 1 mole of water is 18 grams. Thus, the mass of 0.5 mole of water (H2O) is 9 grams.