C8H7NO - molar and relative molecular mass

← Molecular and molar mass

Molecular formula: C8H7NO or CH3OC6H4CN
Relative molecular weight of C8H7NO: 133.14728
Molar mass of C8H7NO: 133.14728 g/mol (0.13315 kg/mol)

Element	Total atoms	Atomic mass	Total mass
C (Carbon)	8	12.0107	96.0856
H (Hydrogen)	7	1.00794	7.05558
N (Nitrogen)	1	14.0067	14.0067
O (Oxygen)	1	15.9994	15.9994
			133.14728

Calculation of the relative molecular and molar mass of C8H7NO

Mr[C8H7NO] = Ar[C] * 8 + Ar[H] * 7 + Ar[N] + Ar[O] = 12.0107 * 8 + 1.00794 * 7 + 14.0067 + 15.9994 = 133.14728
Molar mass (kg/mol) = Mr[C8H7NO] : 1000 = 133.14728 : 1000 = 0.13315 kg/mol

C8H7NO: percent composition by element

Carbon (C) = 96.0856 : 133.14728 * 100 = 72.165 %
Hydrogen (H) = 7.05558 : 133.14728 * 100 = 5.299 %
Nitrogen (N) = 14.0067 : 133.14728 * 100 = 10.52 %
Oxygen (O) = 15.9994 : 133.14728 * 100 = 12.016 %

Molar mass calculator

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Relative molecular weights of other substances

As2S5 [310.1682]
Ca(NO2)2 [132.089]

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