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6. In a coffee cup calorimeter, a 7.25g sample of Ba(OH)₂ is dissolved in 125ml of water. In doing so, the water

increased in temperature by 9.0 °C. What is the molar heat of combustion for Ba(OH)2 in kJ/mol? (CH20 = 4.184

J/g°C) [4 marks]

Fig: 1