Question

Asprin has tge formula c9h8o4 how much atoms of oxygen in 360 mg

Answer 1

Answer:

The molecular mass of C₉H₈O₄ is (9 x 12) + (8 x 1) + (4 x 16) = 108 + 8 + 64 = 180g

1 mol of aspirin is 180g

360mg/180g = 2 x 10⁻³ mols

1 molecule of aspirin has 4 Oxygen atoms

in 360mg we have = (2 x 10⁻³ mols x 6.022 x 10²³ x 4) molecules

= 4.8176 x 10²¹ molecules