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The relative atomic mass of hydrogen is 1 and for oxygen it's 16. This gives water (which has the formula H2O) a molecular mass of 18.

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13y ago
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6mo ago

The Atomic Mass of water (H2O) is calculated by adding the atomic masses of its constituent elements, which are hydrogen (H) and oxygen (O). The atomic mass of hydrogen is approximately 1, and the atomic mass of oxygen is approximately 16. Therefore, the atomic mass of water is approximately 18 (1 + 1 + 16).

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Q: What is the atomic mass of water?
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Related questions

What you the mass number of H2o?

The mass number of water (H2O) is calculated by summing the atomic masses of its components. Hydrogen has an atomic mass of 1 and oxygen has an atomic mass of 16. Therefore, the mass number of water is 18.


Does water have a mass of 18 grams?

It is water's molecular weight or mass number that equals 18 atomic mass units


A molecule of water is composed of two atoms of hydrogen and one atom of oxygen if the atomic mass number of hydrogen is 1 and the molecular mass of water is 18 the atomic mass of oxygen must be?

The molecular mass of water (H2O) is 18, which means the total mass of one oxygen atom and two hydrogen atoms is 18. Since the atomic mass number of hydrogen is 1, the atomic mass of oxygen can be calculated as 16 (18 - 2).


What is the atomic number for ice?

ice is solid form of water so doesn't have atomic number its atomic mass will be 18


What is bigger the atomic mass or atomic number?

Atomic no.=no. of protons Atomic mass=no. of protons+no. of neutrons Hence, atomic mass is greater


What is the atomic mass of honey?

The atomic mass of honey is not a well-defined value as honey is a complex mixture of sugars, water, minerals, and other compounds. It does not have a single atomic mass like an element on the periodic table.


What is the atomic mass-?

The atomic mass is the mass of a molecule, atomic particle or sub-atomic particle.


What is the atomic mass of a Hydrogen and oxygen atom?

If the atomic mass of water is 18 and the atomic mass of hydrogen is 1 then the atomic mass of oxygen is 16


The mass of an atom usually expressed in atomic mass units is its?

Atomic mass.


What is the atomic mass of silver?

The atomic mass of silver is approximately 107.87 atomic mass units.


What is the atomic mass of aluminum?

The atomic mass of aluminum is approximately 26.98 atomic mass units.


Which has the lower atomic mass cobalt or nickel?

Cobalt has a lower atomic mass than nickel. The atomic mass of cobalt is around 58.9 atomic mass units, while the atomic mass of nickel is around 58.7 atomic mass units.