Liquid hexane (CH(CH).CH, will react with gaseous oxygen (0) to produce gaseous carbon dioxide (CO2) and...

Question

Question

Liquid hexane (CH(CH).CH, will react with gaseous oxygen (0) to produce gaseous carbon dioxide (CO2) and gaseous water (HO).

Answer 1

Answer #1

2 C6H14 + 19 O2 = 12 CO2 + 14 H2O

Mole of hexane = 65.5 g /86 g/mol = 0.761 mol.

Mole of oxygen = 65 g / 32 g /mol = 2.03 mol.

For 19 mole Oxygen - - - - - 2 mole hexane

For 2.03 mole Oxygen - - - - - 0.214 mol hexane.

Excess hexane left = ( 0.761 - 0.214) = 0.547 mole

Mass of hexane leftover = mole × Molar mass

Mass = 0.547 mole × 86 g/mole = 47. 04 g

Answer 2

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