Group 1 and group 2

Two groups created calorimeters and tested them. BOTH were given the same unknown mixture of ethanol and water. Their job was to collect data using their calorimeter in order to determine what their unknown ethanol/water mixture was. Group 1 collected the following data: Iron mass: 92.2 grams Liquid mass: 192.1 grams water = 23.2 C to water 27.6 C 98.1 C t Timon Group 2 collected the following data: Iron mass: 71.2 grams Liquid mass: 183.7 grams water = 23.1 C wwer Iron 26.4 C 99.0 C 6. Do all of the calculations to determine what the percent composition each group would have calculated for their mixture of ethanol and water. Show ALL of your math. (10 pnts) Group 1: Two groups created calorimeters and tested them. BOTH were given the same unknown mixture of ethanol and water. Their job was to collect data using their calorimeter in order to determine what their unknown ethanol/water mixture was. Group 1 collected the following data: Iron mass: 92.2 grams Liquid mass: 192.1 grams water = 23.2 C 27.6 C 98.1 C trwner Iron Group 2 collected the following data: Iron mass: 71.2 grams Liquid mass: 183.7 grams i water = 23.1 C water = 26.4 C tiron = 99.0 C 6. Do all of the calculations to determine what the percent composition each group would have calculated for their mixture of ethanol and water. Show ALL of your math. (10 pnts) Group 1: Group 2: 7. If the actual mixture was 35% ethanol and 65% water by mass, which group created the more accurate calorimeter? Explain why you say that. (3 pnts) 8. Solve the ing problems (show all your work--2 pnts cach) a. How many grams of water would require 22,000 joules of heat to raise its temperature from 34.0C to 100.0C? The specific heat of water is 4.186J/g C. b. A block of aluminum weighing 140.0 g is cooled from 98.4C to 62.2C with the release of 1080 joules of heat. From this data, calculate the specific heat of aluminum C. A 55 kg block of granite has an original temperature of 15.0C. What will be the final temperature of this granite if 4.5x10 kJ of heat energy are added to the granite? The specific heat of granite is 0.790 J/g C. d. Granite has a specific heat of 0.790 J/g C. What mass of granite is needed to store 1.50 x 10') of heat if the temperature of the granite is to be increased by 15.5c