Question

Name I line structures molecular formula molecular forml % Empirical 85.71 Ethene Cahy hc=ch 85.64 C3H6 Propene 14.36 ne = "ch 1- Butene som er allt 1- Butene Счне 85.71 85.71 14.28 2 - Butene Счhtx 1- Pentene head, Cheche 1-Pentene cth CHIO cth 2 - Pentene 85.71 14.28

Answer 1

4 For all the compounds in Table 1; empirical formula is CH2.

5. The mass percent of the elements in a compound gives the simplest mole ratio of the elements present in the compound which represents the empirical formula of the compound. To determine the molecular formula ; you need the molar mass of the compound.

So; only mass percent of the elements does not give the molecular formula.