Molar Mass / Molecular Weight of O2 (Oxygen Gas)

Explanation of how to find the molar mass of O2: Oxygen gas.

A few things to consider when finding the molar mass for O2:

- make sure you have the correct chemical formula.
- always include the units for molecular weight (grams/mole).
- make sure you do the math right - follow the order of operations.

Note that molecular weight, molar mass, and gram formula mass are essentially the same concept.

Finding the Molar Mass (sometimes called Molecular Weight although the units are different) of a compound is a essential skill for the chemistry topic of stoichiometry and the first step in converting from moles to grams (or grams to moles).

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[firsttimeever]

How many molecules in O2 gas? Iam confused

[jeelbambhroliya]

Molecular mass of 2O2 ???
Please reply as early as possible.

[Adityasehgal]

Is nitrogen molecular weight and silicon the same

[dharmarao]

But actual value is 28.9 then how it be?

[GOATS]

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