Maleic acid contains 41.4% carbon, 3.47% hydrogen, and 55.1% oxygen by weight. A 0.050-mol sample of this...?

(cont-) compund weighs 5.80g. what is the molecular formula of maleic acid? ANSWERS a)CHO b) C6H6)6 c)C2H202 d) C4H4O4 e)C3H3O