What is mean by the relative atomic mass of oxygen is 16?

Atomic mass of an element is the relative mass of its atom as compared with the mass of a carbon-12 atom taken as 12 units. Hence, atomic mass of oxygen is 16 u means that one atom of oxygen is 16 times heavier than 1/12 of a carbon-12 atom.

Is o2 16 or 32?

O2 is a diatomic molecule. The mass of an oxygen atom = 16 amu. ∴ Mass of O2 molecule = 2 × 16 = 32 amu.

Can oxygen form a diatomic molecule?

Diatomic molecules contain two atoms that are chemically bonded. If the two atoms are identical, as in, for example, the oxygen molecule (O2), they compose a homonuclear diatomic molecule, while if the atoms are different, as in the carbon monoxide molecule (CO), they make up…

What is the total molar mass of all 16 oxygen atoms?

One mole of atoms of oxygen has a mass of 16 g, as 16 is the atomic weight of oxygen, and contains 6.02 X 1023 atoms of oxygen.

What is the relative formula mass for oxygen?

15.999 u
Oxygen/Atomic mass

How many protons neutrons and electrons does oxygen 16 contain?

Answer 2: Oxygen is the 8th element in the periodic table. This means that oxygen has 8 protons and 8 electrons. In order to get the number of neutrons you take the atomic weight in this case 15.9999~16 and you subtract it by the number of protons (16-8).

What is the atomic mass of O2?

How do we know oxygen is diatomic?

The diatomic nature of hydrogen and oxygen, as shown by Avogadro’s hypothesis. It is observed that when two volumes of hydrogen gas and one volume of oxygen gas combine, two volumes of water gas are formed.

What is the mass of an oxygen atom in grams?

O 2 is a diatomic molecule. The mass of an oxygen atom = 16 amu. ∴ Mass of O 2 molecule = 2 × 16 = 32 amu. ⇒ 5.31 × 10 -23 g.

What is the mass of 2 moles of oxygen?

The atomic mass of oxygen is 16 and the atomic number is 8. What is the mass in grams of 2 moles of oxygen gas? Originally Answered: The atomic mass of oxygen is 16 and the atomic number is 8.

Is the atomic mass of oxygen equal to 1amu?

It is not, although it’s very close. There are 3 reasons: One atomic mass unit (1amu) is defined as 1/12 the mass of a carbon 12 atom at rest. The atomic mass of every other element is based on that: 12* (mass of 1 atom of element)/ (mass of one atom of carbon 12) so for oxygen it would be 12* (mass of oxygen atom)/ (mass of one atom of carbon 12)

What is the atomic number of oxygen?

Oxygen is an element with atomic symbol O, atomic number 8, and atomic weight 16. Oxygen is the third most abundant element in the universe after hydrogen and helium and the most abundant element by mass in the Earth’s crust. Diatomic oxygen gas constitutes 20.