What is the atomic mass of argon in chemistry?

The atomic mass of argon in chemistry is 39.948 atomic mass units (amu). Argon is a noble gas with the chemical symbol Ar, and it is the third-lightest element in the periodic table, after helium and neon. Its atomic mass is determined by the number of protons, neutrons, and electrons in its nucleus, and it is considered a stable, non-reactive element that does not readily form chemical bonds with other elements.

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What is the number of atoms present in 2 moles of oxygen?

 The number of atoms present in 2 moles of oxygen can be calculated using Avogadro's number, which is defined as the number of atoms, ions, or molecules in one mole of a substance. Avogadro's number is approximately 6.022 x 10^23 atoms, ions, or molecules per mole. So, if you have 2 moles of oxygen, you can calculate the number of atoms as follows: 2 moles of oxygen x Avogadro's number (6.022 x 10^23 atoms/mole) = 12.044 x 10^23 atoms Therefore, 2 moles of oxygen contains approximately 12.044 x 10^23 oxygen atoms.
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