Nicotine, a stimulant found in tobacco, has the mass percent composition: C, 74.03%; H, 8.70%; N, 17.27%. The molar mass of nicotine is 162.26 g/mol. Find the molecular formula of nicotine.
Mass percent composition of C = 74.03%
Mass percent composition of H = 8.70%
Mass percent composition of N = 17.27%
Molar mass of nicotine= 162.26 g/mol
Molecular formula of nicotine= ?
To find the molecular formula, we need to find the number of atoms.
number of moles (n) =
To find the mass of element here, we multiply the mass percent composition with the molar mass of nicotine.
Mass of carbon (C) =162.26 = 120.12 g
Mass of hydrogen(H) =162.26 = 14.11 g
Mass of nitrogen(N) =162.26 = 28.022 g