What is the molecular formula of nicotine?

What is the molecular formula of nicotine?Please I have been stuck on this question for a long time if i could get a step by step help that would be greatly appreciated :)
Nicotine has the empirical formula, C5H7N. A solution of 0.500 g of nicotine in 12.0 g of water boils at 100.140*C. What is the the molecular formula of nicotine?

Jez
I need points

Norris724
THIS IS ALLOT. BUT IT IS Chemical Database
Nicotine
Identifications
Formula: C10H14N2
Formula: C10H14N2O
Formula: C5H4NC4H7NCH3
Elements: Carbon, Hydrogen, Nitrogen
CAS Number: 54-11-5
Caswell Number: 597
CCOHS Record Number: 446
RCRA Waste Number: P075
RTECS Number: QS5250000
Synonyms/Related:
(+)-Nicotine
(+-) NICOTINE
(+-)-3-(1-Methyl-2-pyrrolidinyl) pyridine
(+-)-Nicotine
(-)-3-(1-Methyl-2-pyrrolidyl) pyridine
(-)-Nicotine
(2S) 3-(1-Methyl-pyrrolidin-2-yl)-pyridine
(R)-3-(1-Methyl-2-pyrrolidinyl) pyridine
(R,S)-Nicotine
(S)-(-)-NICOTINE, 3-[(2S)-1-METHYL-2-PYRROLIDINYL] PYRIDINE
(S)-3-(1-Methyl-2-Pyrrolidinyl) Pyridine
(S)-3-(1-methylpyrrolidin-2-yl) pyridine
(S)-3-(N-methylpyrrolidin-2-yl) pyridine
(S)-Nicotine
.beta.-Pyridyl-.alpha.-N-methylpyrrolidine
.beta.-Pyrimidum
1-methyl-2-(3-pyridal)-pyrrolidene
1-Methyl-2-(3-pyridyl) pyrrolidine
2'-beta-H-Nicotine
3-(1-Methyl-2-pyrrolidinyl) pyridine
3-(1-Methyl-2-pyrrolidyl) pyridine
3-(1-methylpyrrolidin-2-yl) pyridine
3-(2-(N-methylpyrrolidinyl)) pyridine
3-(N-METHYLPYROLLIDINO) PYRIDINE
3-(N-Methylpyrrolidino) pyridine
3-(tetrahydro-1-methyl pyrrol-2-yl) Pyridine
3-Pyridinecarboxamide, N,N-diethyl-
3-[(2S)-1-methylpyrrolidin-2-yl]pyridine
Anacardone
Anacordone
Astrocar
beta-Pyridyl-alpha-N-methylpyrrolidine
beta-Pyrimidum
C00745
c0468
C5H4NC4H7NCH3
Camphozone
Canfodiamina
Carbamidal
Cardamine
Cardiagen
Cardiamid
Cardiamide
Cardiamina
Cardiamine
Cardimon
Citocor
Coracon
Coraetamidum
Coraethamide
Coraethamidum
Coralept
Coramine
Coravita
Corazone
Cordiamid
Cordiamin
Cordiamine
Corditon
Cordynil
Corediol
Corespin
Corethamide
Coretone
Corivo
Cormed
Cormid
Cormotyl
Cornotone
Corotonin
Corovit
Corvin
Corvitan
Corvitol
Corvotone
Corywas
D-Nicotine
Danamine
destruxol
Destruxol orchid spray
Diaethyl-nicotinamid
Diaethyl-nicotinamid [German]
Diaethylamidum acidi nicotinici
Diethyl-Nicotamide
Diethylamid kyseliny nikotinove [Czech]
Diethylnicotinamide
Dietilamide-Carbopiridina
Dinacoryl
DL-tetrahydronicotyrine
Dynacoryl
Dynamicarde
Elitone
Emo-nik
ENT 3,424
Eucoran
FLUX MAAG
Flux Maay
fumeto bac
Fumetobac
Habitrol
Hansacor
Inicardio
Kardiamid
Kardonyl
Kordiamin
L(-)-nicotine
L-3-(1-Methyl-2-pyrrolidyl) pyridine
l-Nicotine
Leptamin
MACH-NIC
Mediamid
methyl-2-pyrrolidinyl) pyridine
Micotine
N, N-Diethylnicotinamide
N,N-Diethyl-3-pyridinecarboxamide
N,N-DIETHYLNICOTINAMIDE
NCT
Ni-Cor
niagara p.a.
Niagara p.a. dust
Niamine
Nic-Sal
Nicaethamidum
Nicetamida [INN-Spanish]
Nicetamide
Nicetamide [DCIT]
Nicethamide
Nicethamidum [INN-Latin]
Nico-dust
Nico-fume
Nicocide
Nicor
Nicordamin
Nicorine
Nicoryl
Nicotin
Nicotina
Nicotina (ITALIAN)
Nicotina [Italian]
Nicotinamide, N,N-diethyl-
Nicotine
NICOTINE (L) (PYRROLIDINE,N-METHYL,ALPHA-(D-BETA-PYRIDYL))
Nicotine alkaloid
Nicotine [BSI:ISO]
Nicotine [USAN]
Nicotine, (+-)-
Nicotine, liquid
Nicotinic acid diethylamide
Nicotrol
Nicotrol Inhaler
Nicotrol NS
Nikardin
Niketamid
Niketamide
Nikethamide
Nikethamide [BAN:INN]
Niketharol
Nikethyl
Niketilamid
Nikorin
Nikotin
Nikotin (GERMAN)
Nikotin [German]
Nikotyna
Nikotyna (POLISH)
Nikotyna [Polish]
Niquetamida
Nisetamide
Ortho N-4
Ortho N-4 and N-5 dusts
Ortho N-4 dust
Ortho N-5
Ortho N-5 dust
Percoral
Procardine
Procorman
Prostep
Pseudonicotine
Pyricardyl
Pyridine, 3- (1-methyl-2-pyrrolidinyl)-, (S)-
Pyridine, 3- (tetrahydro-1-methylpyrrol-2-yl)
Pyridine, 3-((2S)-1-methyl-2-pyrrolidinyl)-
Pyridine, 3-(1-methyl-2-pyrrolidinyl)-
Pyridine, 3-(1-methyl-2-pyrrolidinyl)- (9CI)
Pyridine, 3-(1-methyl-2-pyrrolidinyl)-, (R)- (9CI)
Pyridine, 3-(1-methyl-2-pyrrolidinyl)-, (s)-
Pyridine, 3-(1-methyl-2-pyrrolidinyl)-, (S)- (9CI)
Pyridine, 3-(tetrahydro-1-methylpyrrol-2-yl)
Pyridine-3-carboxydiethylamide
Pyridine-3-carboxylic acid diethylamide
Pyrrolidine, 1-methyl-2-(3-pyridal)-
Reformin
Rehormin
S-(-)-Nicotine
Salvacard
Salvacorin
Sancora
SDCCGMLS-0066911.P001
Solyacord
Stellamine
Stiminol
Stimulin
Tendust
Tetrahydronicotyrine, dl-
Tonocard
Tonocor
Vasazol
Ventramine
XL All Insecti-cide, Emo-Nib
XL All Insecticide
Properties
Incompatiblities:
strong acids
strong oxidizers
Health & Regulatory Guidelines
EPA Regulations:
Reportable Quantity: 100 Lbs
NFPA 704 Rating:
Health Hazardard Rating: 4
Fire Hazardard Rating: 1
Reactivity Hazardard Rating: 0
NIOSH Guidelines:
TWA: 0.5 mg/m3
IDLH: 5 mg/m3
OSHA Regulations:
TWA: 0.5 mg/m3
TWA Vacated: 0.5 mg/m3
Health Risks: Highly Toxic
49 CFR 172.101 - Hazardous Materials Table

Hazardous materials description and proper shipping namesHaz class or divID#PGLCSpec prov §172.102Pack §173Qty limitVessel
ExcepNon BulkBulkPass air/railCargo air onlyLocOther
(1)(2)(3)(4)(5)(6)(7)(8A)(8B)(8C)(9A)(9B)(10A)(10B)
Current as of January 2006
Nicotine6.1UN1654II6.1IB2153202243ForbidForbidA
2004 E

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Nicotine - Remember

Nicotine

Smoking Cessation - Quit Smoking Today. Smoking Cessation helps smokers kick their nicotine addiction, providing tools, information and support for people quitting smoking.

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