Assertion: acetylene | /r/HasProperty | c 4 h
Facets:
Source sentences:
text: Berthelot's empirical formula for acetylene (C 4 H 2 ), as well as the alternative name "quadricarbure d'hydrogène" (hydrogen quadricarbide), were incorrect because chemists at that time used the wrong atomic mass for carbon (6 instead of 12).[citation needed]