Question

total number of electrons in a kg mole of O2​

Answer 1

Since Oxygen is the most abundant element on earth so i will give my answer in term of 1 kg of O2(molecule):-

1 mole = 32 gm

1 gm =1/32 mole

1 kg = 1000/32 mole

Now , 1 mole of any compound = 6.022 x (10)^23 atoms.

Therefore, 1 kg of O2= (1000/32)*(6.022 x (10)^23) atoms

Roughly , 1.881 x (10)^25 molecules

And each molecule has 16 electrons

Therefore, 3.096 x (10)^26 electrons.

Thank you.

Answer 2

Given - Kilogram mole of oxygen.

Find - Number of electrons

Solution - One kilogram mole of oxygen has number of electrons equal to Avogadro's number. For kilogram mole, Avogadro's number is 6.023*10²⁶.

Moreover, as per the fact, oxygen molecule contains 16 electrons.

So, Total number of electrons in kilogram mole of oxygen = 6.023*10²⁶*16

Total number of electrons = 9.6*10²⁷

Thus, number of electrons in a kilogram mole of O2 is 9.6*10²⁷ electrons.