Question

What is number of molecule of co2 which contains 8 gm of o2


with solution​

Answer 1

$\large\bf\underline{AnswEr}$

8 grams of oxygen will be in (1 x 8)/32 moles of CO2 = 0.25 moles.

1 mole = 6.023 x 1023 molecules.

Thus, 0.25 moles = 6.023 x 1023 x 0.25molecules. = 1.5 x 1023 molecules contains 8 grams of O2.

Answer 2

Explanation:

32 gms of oxygen are present in 1 mole of CO2

8 grams of oxygen will be in (1 x 8)/32 moles of CO2 = 0.25 moles

1 mole = 6.023 x 1023 molecules

Thus, 0.25 moles = 6.023 x 1023 x 0.25 molecules

= 1.5 x 1023 molecules contains 8 grams of O2.