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.
The chemical symbol for benzene is C6H6. Benzene is formed from both natural processes and human activities. It is produced from volcanoes and forest fires and is a natural part of crude oil, gasoline, and cigarette smoke. Diesel exhaust contains benzene.Benzene is one of the 20 most widely used chemicals in the United States. It is used to make other chemicals that are then used to make plastics, resins, nylon, and other synthetic fibers.ou can be exposed to benzene indoors at home, where the air can contain higher levels of benzene than outdoor air, from products such as glue, paint, furniture wax, and detergent. Approximately half the national exposure to benzene comes from smoking cigarettes or being exposed to cigarette smoke, indoors or outdoors.