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500 ml of water weighs 500 gm. Now, 1 mole contains 6.022 * 10^23( Avogadro’s Number) molecules. which equals 167.273 * 10^23 molecules.

## How many molecules are in a mole of H2O?

For example: H2O has two hydrogens and one oxygen. The atomic mass of hydrogen is 1.0078 and the atomic mass of oxygen is 15.999, so the mass of a mole of water is 2 x 1.0078 + 15.999. Therefore, a mole of water, or 6.022 x 1023 molecules, weighs 18.0146 grams.

## How many molecules are in 0.500 moles H2O?

How many molecules of H2O are present in 0.500 mol of water? 1 mol of water contains 6.022 × 1023 H2O molecules Therefore 0.500 mol contains 0.500 × (6.022 × 1023) = 3.01 × 1023 H2O molecules.

## How many molecules are H2O?

Originally Answered: How many water molecules are there in 1 mole of water (H2O)? In one mole are 6.02×10^23 H2O molecules. As you can see 1 H2O molecule contains 3atoms.

## How many moles are in 500ml of water?

Molarity of a solution is the mumber of moles per litre. You have 0.75 moles in 500 ml. Therefore, you have 0.75 moles / 0.5 litre, which is 1.5 moles per liter, or 1.5 Molar.

## How many atoms are in H2O?

Atoms join together to form molecules. A water molecule has three atoms: two hydrogen (H) atoms and one oxygen (O) atom. That’s why water is sometimes referred to as H_{2}O.

## How many liters are in 1 mole of H2O?

One mole of water has a mass of 18 grams and volume of 18 milliliters or 0.018 liters.

## How many molecules are in 0.500 moles?

1 Expert Answer

For any substance there are 6.022 x 10^{23} particles per mole. In this case, multiply Avogadro’s Number by 0.500 moles to get 3.01 x 10^{23} molecules of CO_{2}.

## How many molecules are there in 0.5 moles of water?

Answer: A mole is about 6.022 * 10^23 of anything. So half a mole of water molecules is 3.011 * 10^23 molecules of water. 0.5 x 6.022 x 10^23 molecules of water.

## How many molecules of water are in 1000g of water?

The liter of water has 1000 grams. The number of moles is 1000/18 = 55.556 moles. The number of molecules is therefore 6.022*10^{23} * 55.556 = 3.346*10^{25} molecules.

## How many molecules are in 1g of water?

Answers (1)

or 18 g of water contains 6.022 x 10^{23} water molecules. or 1 g of water contains (6.022 x 10^{23})/ 18 water molecules and the number comes out to be 3.3455 x 10^{22}. So the number of water molecules present in 1 g of water is 3.3455 x 10^{22}.

## How many molecules of water are there in 54 gram of H2O?

1.8×1024 water molecules.

## How many atoms are there in 500ml of water?

Calculate the number of H atoms in 500 L of H_{2}O:

There are 3.35×10^{28} H atoms in 500 L of water.

## How many H atoms and O atoms are in a 500ml water bottle?

The number of H atoms in 500.0 L H_{2}O is 3.3 x 10^{28} H atoms.

## How do you find moles 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.