Question

1.0 mole of CO2 contains: (A) 6.02 × 1023 atoms of C (B) 6.02 × 1023 atoms of O (C) 18.1 × 1023 molecules of CO2 (D) 3 g-atoms of CO2

Answer 1

Answer:

(A) 6.02 × 10^²³ atoms of C

Explanation:

1 molecule pf CO2 can be split into(contains) 1 atom of C and 2 atoms of O

So 1 mole of CO2 must contain 1 mole of C atoms and 2 mole of O atoms

Now we all know 1 mole= 1Na(Avogadro's Number) And 1NA = 6.023×10^²³

Therefore 1 mole of C atoms = 6.023 × 10^²³atoms of C

Therefore 1 mole of CO2 contains 6.023×10^²³ atoms of C