Question: how many carbon atoms are in butane?
Answer: Butane has the chemical formula C4H10 C 4 H 10 . The molar mass of butane is 58.12 g/mol. 1 mol of butane contains 4 mol of carbon (C). 1 mol of carbon (C) contains Avogadro's number of carbon atoms, i.e. 6.022×1023 6.022 × 10 23 carbon atoms.