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Convert the mass to moles (using molar mass). There are 4.17 mol H2O in 75 grams of water.

## What is the number of moles of water in 72 0 g of water?

72 g of water occupies 4 moles.

## How many moles are in H2O?

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. This is stated: the molar mass of water is 18.02 g/mol.

## How many moles of O are in H2O?

A mole of water molecules contains 2 moles of hydrogen atoms and 1 mole of oxygen atoms.

## How many molecules of water H2O are in 75.0 g H2O?

There are 2.342558 X 1024 molecules of water in a 75.0-gram sample of H2 O.

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

Answers (1)

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 moles are in 18 g of H2O?

Explanation: Water has a molar mass of 18.01528 g/mol≈18 g/mol . Since water has a chemical formula of H2O , there will be 2 moles of hydrogen in every mole of water. In one mole of water, there will exist approximately 6.02⋅1023 water molecules.

## How many moles of water are there in 100g of H2O?

There are approximately 5.55 moles of water in a 100-gram sample of water.

## 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 moles are in 75 grams of water?

Convert the mass to moles (using molar mass). There are 4.17 mol H_{2}O in 75 grams of water.

## How many grams of H2O are there in 2.50 mol of H2O?

The molar mass of water H2O = 18.02 grams per mole.

## 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 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.

## What is a 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. weight of water = 2(1.0079) g + 15.9994 g. weight of water = 2.0158 g + 15.9994 g.