Q1. The alcohol 2-methylpropan-2-ol, (CH3):COH, reacts to form esters that are used as flavourings by the food industry.

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Q1 The Alcohol 2 Methylpropan 2 Ol Ch3 Coh Reacts To Form Esters That Are Used As Flavourings By The Food Industry 1 (62.99 KiB) Viewed 10 times

Q1. The alcohol 2-methylpropan-2-ol, (CH3):COH, reacts to form esters that are used as flavourings by the food industry. The alcohol can be oxidised to produce carbon dioxide and water. A student carried out an experiment on a pure sample of 2-methylpropan-2-ol to determine its enthalpy of combustion. A sample of the alcohol was placed into a spirit burner and positioned under a beaker containing 50 cm³ of water. The spirit burner was ignited and allowed to burn for several minutes before it was extinguished. The results for the experiment are shown in Table 1. Table 1 Initial temperature of the water/°C Final temperature of the water/°C Initial mass of spirit burner and alcohol/g Final mass of spirit burner and alcohol/g 18.1 45.4 208.80 208.58 (a) Use the results from Table 1 to calculate a value for the heat energy released from the combustion of this sample of 2-methylpropan-2-ol. The specific heat capacity of water is 4.18 JK-¹ ¹. Show your working. â