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

Question

(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

Answer 1

Athe answer is D:

5.80g/0.05mol = 116g/mol

C = 12.01 g/mol 0.414*116 = 48.03 (about 4 mol C)
H = 1.01g/mol 0.0347*116 = 4.03 (about 4 mol H)
O = 16.0g/mol 0.551*116 = 63.92 (about 4 mol O)

C4H4O4

Answer 2

its C4H4O4