What is the mass of 1 molecule of water in Amu?

18.02 amu
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.

Is the mass of one molecule of water is 18 amu What is the mass of one mole of water molecule?

Mass of one mole of water molecule = 18 grams..

What is the mass of one molecule of water in one gram?

we have calculated the mass of one molecule of water as 2.989×10−23g.

What will be the mass of 18 g of water 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.

What is the value of 1 amu?

In imprecise terms, one AMU is the average of the proton rest mass and the neutron rest mass. This is approximately 1.67377 x 10 -27 kilogram (kg), or 1.67377 x 10 -24 gram (g). The mass of an atom in AMU is roughly equal to the sum of the number of protons and neutrons in the nucleus.

What is the mass of 1 molecule of nitrogen gas?

nitrogen gas is define as N2. its moleculer mass will become 28. for its one mole it is of 28gram.

How many molecules of water are there in 1 gram of water H2O?

or 1 g of water contains (6.022 x 1023)/ 18 water molecules and the number comes out to be 3.3455 x 1022. So the number of water molecules present in 1 g of water is 3.3455 x 1022.

How many molecules are there in 18 g of water?

– We can say that 18 grams of water means same as 1 mole of water , and in this NA Avogadro number of water molecules are present , which means 6.02×1023 molecules.

How many atoms does 18 g of water have?

The chemical formula of water is H2O, in water two mole of hydrogen is present and one mole of oxygen is present. So, in a single molecule of water, two mole of hydrogen are present. 18 g of water will contain ⇒1×12.046×1023=12.046×1023 atoms of hydrogen.

Does 1 amu equal a proton mass?

Since the nucleus accounts for nearly all of the mass of the atom, a single proton or single neutron has a mass of approximately 1 amu.