1 How long does it take for an ear piercing to heal? ...I got a second ear piercing at claireâs about two months ago. 2  I kept the earring on for 6 weeks and cleaned it with the antiseptic like they said to.
For instance, suppose we believe our sample is benzene (C 6 H 6). We can compare the following: 1  The empirical formula (CH) obtained from the molecular formula of benzene (C 6 H 6). 2  The empirical formula obtained from a elemental analysis of the sample.o do this, we need to determine the empirical formula from the molecular formula. To determine the empirical formula of a known substance, such as glucose, we take the subscripts of the molecular formula (C 6 H 12 O 6) and reduce then to the simplest whole number ratios. If we divide this by 6, we get C 1 H 2 O 1.
Benzene is one of a small number of industrial chemicals that is recognized as a known human carcinogen. Benzene is especially toxic to the blood-forming organs, i.e., the bone marrow and other organs that can produce blood cells.hat is Benzene? Benzene is the simplest aromatic hydrocarbon; it has 6 carbon atoms and 6 hydrogen atoms in a hexagonal (ring) structure. Discovered by the English scientist Michael Faraday in 1825, it was named benzene in 1845 by A.W. von Hofmann, the German chemist, who detected it in coal tar.