1. If the temperature of 34.4 g of ethanol increases from 250C to 788C, how much heat has been absorbed by the ethanol? The specic heat of ethanol is listed in the table on pg 2 2. A lSS-g sample of an unknown substance was heated from 250C to 400C. In the process, the substance absorbed 5696 J of energy. What is the specic heat of the substance? Identify the substance among those listed in the table on pg 2 3. A piece of iron absorbs 1086.75 joules of heat energy. Will the temperature change be positive or negative? Explain your answer. 4. A 4.50 g nugget of pure gold absorbed 276 J of heat. The initial temperature was 250C. What was the nal temperature? The specic heat of gold is listed in Table on pg 2. 5. If a room temperature aluminum bolt is placed in hot water is calculated to have gained 876.50J of heat, what will be the amount of energy in Joules that is lost by the water? Be sure to show if positive or negative. 6. How much heat in joules has to be removed from 225g of water to lower its temperature from 25.00C to 10.00C