rubyguerrero2020 rubyguerrero2020
  • 08-11-2018
  • Chemistry
contestada

When 64.0 g of methanol (CHOH) is burned, 1454 kJ of energy is produced. What is the heat of combustion for methanol?

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kenmyna
kenmyna kenmyna
  • 17-11-2018

 The heat  of combustion  for  methanol   is 727  kj/mol


    calculation

 calculate the moles  of methanol (CH3OH)

moles = mass/molar  mass

molar mass of methanol =  12 +( 1 x3)  +16 + 1= 32 g /mol

moles is therefore= 64.0 g / 32 g/mol =  2 moles


Heat of combustion  is therefore = 1454 Kj / 2 moles =  727  Kj/mol

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