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We assume you are converting between moles Oxygen and gram. You can view more details on each measurement unit: molecular weight of Oxygen or grams The molecular formula for Oxygen is O. The SI base unit for amount of substance is the mole. 1 mole is equal to 1 moles Oxygen, or 15.9994 grams.

There are 80 gram of oxygen molecule present in 2.5 moles of [tex]O_{2}[/tex] molecule.

What is moles?

The mole (sign mol) is just the SI base unit of material quantity. The amount of substance in an object is a measurement of how many elementary units of a certain substance are present.

It can be represented as:

Moles = mass / molar mass

Calculation of mass of oxygen by using moles formula:

Given data:

Moles = 2.5

Mass = ?

Molar mass = 32.

Put the value of given data in moles formula:

Mass = moles × molar mass

Mass = 2.5 × 32

Mass = 80 gram

Therefore, there are 80 gram of oxygen molecule present in 2.5 moles of [tex]O_{2}[/tex] molecule.

To know more about moles .

https://brainly.com/question/26416088.

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