Molecular mass of pentane is 72 u.
Pentane
Pentane. Isopentenyl pyrophosphate.
The molecular weight of pentane is approximately 72.15 grams per mole. So, one mole of pentane weighs 72.15 grams.
Pentane is a liquid at room temperature (B.p. 36.1 °C, 308 K) and neopentane (2,2-dime-pe) is gas (B.p. 9.5 °C, 283 K) Both as gases they have the same density, because of the same molecular mass.
The molar mass of the hydrocarbon is 58 g/mol. To calculate the molar mass, we use the formula: molar mass = mass / moles. Since the hydrocarbon has 5 carbons, the molecular formula is C5H12 (for pentane).
Pentane has the molecular structure C5H12 So multiply the number of each atom with its molecular mass. (see the periodic table) 5*12 + 12*1 = 72 gram per mole. Or more accurately: 5*12.01078 + 12*1.007947 = 72.149264 g/mole
pentane
The boiling point of hexane is higher than that of pentane because hexane has a larger molecular mass and stronger London dispersion forces between its molecules. These stronger intermolecular forces require more energy to overcome, resulting in a higher boiling point for hexane compared to pentane.
The molecular formula of 2-pentene is C5H10 and the molecular formula of pentane is C5H12. Therefore, (12 - 10) or 2 hydrogen atoms per molecule will be needed to convert pentene to pentane.
The structural isomer of 2-methylbutane is pentane. Both 2-methylbutane and pentane have the same molecular formula, C5H12, but differ in the arrangement of carbon and hydrogen atoms.
I assume you mean the molecular mass. Its molecular mass is 86.175
I assume you mean the molecular mass. Its molecular mass is 342.3g/mol