Question

Find out the mass of 8moles ofO2 gas. army please help (◍•ᴗ•◍)❤​

Answer 1

Answer:

Explanation:

The molecular mass of an element is defined as the sum of the masses of the elements present in the molecule. Molecular mass is obtained by multiplying the atomic mass of an element with the number of atoms in the molecule and then adding the masses of all the elements in the molecule.

O2 is a diatomic molecule.

The mass of an oxygen atom = 16 amu.

∴ Mass of O2 molecule = 2 × 16 = 32 amu.

Mass of one molecule of oxygen

⇒ 32/ Avogadro constant ( 6.023 × 1023)

⇒ 5.31 × 10-23g

Answer 2

Answer:

1 mole of o2 =32 grams

therefore 8 moles =32×8= 256grams

Explanation:

I hope you have got your answer