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1. Show how AHA can be calculated from AH. AH, and AH. 2. A student following...
Just need a little help figuring out how to make the calculations from my data Data...
Just need a little help figuring out how to make the calculations
from my data
Data and Calculations 1. Determining the calorimeter constant Data % 8 (a) Mass of empty Styrofoam cups (b) Mass of cups + 70 ml water (c) Mass of cups + 70 ml water + 30 ml hot water (d) Initial temperature of water in the calorimeter (cups) (e) Temperature of the boiling water bath Trial 1 20.5 86.6 1 113.6 23 95 39 Trial 2...
Following the procedure in lab, a student heated their 36.353 g metal sample to 100.0°C ....
Following the procedure in lab, a student heated their 36.353 g metal sample to 100.0°C . The metal was added to a coffee cup calorimeter containing 20.079 g of water at 21.9 *C . The final temperature of the water was 36 "С . Assuming no heat was absorbed by the calorimeter, calculate the specific heat of the metal. Report your answer in units of
1. A volume of water was heated to 83.90 °C and immediately added to 48.11 mL...
1. A volume of water was heated to 83.90 °C and immediately added to 48.11 mL of water at 23.98 °C contained within a coffee cup calorimeter. The final temperature of the mixture was 40.86 °C. The final volume of water inside the calorimeter was 90.45 mL. Assuming that them heat capacity of the solution is 4.18 J/g/°C, calculate the following: a. The volume of hot water added ml b. The mass of hot water (dwater = 1.00 g/mL) c....
ty ah Run 2 Run 1 Average initial temperature of HCl and A NaOH solutions (°C)...
ty ah Run 2 Run 1 Average initial temperature of HCl and A NaOH solutions (°C) 29.8 32.4 Maximum temperature of HCl-NAOH solution (°C) 34.5 30.5 Maximum temperature change for reaction (°C) 13 Total volume of HCl plus NaOH solutions (mL) Mass of final NaCl solution (g) Heat produced from HCl-NaOH reaction (J) Moles of H,O formed in reaction (mol) Heat expected from moles of H,0 formed (J) Heat absorbed by calorimeter (J) Heat capacity of calorimeter (J/oC) Average heat...
1 A173.0g lead ball at 155°C is dropped into a calorimeter cup containing 210 g of...
1 A173.0g lead ball at 155°C is dropped into a calorimeter cup containing 210 g of water at 16.0°c. After equilibrium is reached, the temperature of water is increased to 18.2°C. What is the heat capacity of calorimeter? Assume that calorimeter and water are initially at the same temperature. (Specific heat of water is 4186 J/kg. C and specific heat of lead is 128 J/kg.C) 2. An unknown metal sample of 54 g at 108°C is dropped into a calorimeter...
3. A student constructs a coffee cup calorimeter and places 50.0 mL of water into it....
3. A student constructs a coffee cup calorimeter and places 50.0 mL of water into it. After a brief period of stabilization, the temperature of the water in the calorimeter is determined to be 22.7 °C. To this is added 50.0 mL of water that was originally at a temperature of 54.5 C. A careful plot of the temperatures recorded after this established the temperature at To was 30.24 C. What is the calorimeter constant in J/C for this calorimeter?...
Ans. - 1155 B6J 242 + 2024NO AH-3616T 21tr022420 1871.LRT 4. 100.0 mL of water is placed in a calorimeter and allow...
Ans. - 1155 B6J 242 + 2024NO AH-3616T 21tr022420 1871.LRT 4. 100.0 mL of water is placed in a calorimeter and allowed to reach an initial temperature of 23°C. A 45.0g block of Cu (SH = 0.385 J/g."C) at 285°C is placed in the water (SH = 4.18 J/g. °C) in the calorimeter. a) If the final temperature reached is 30°C, determine the heat capacity of the calorimeter? b) The same calorimeter was used to determine the heat of solution...
Table 4.3: Enthalpy of Dissolution for a Salt Caci, Na,CO, 104,0 Volume of water 90. 1...
Table 4.3: Enthalpy of Dissolution for a Salt Caci, Na,CO, 104,0 Volume of water 90. 1 mL Mass of water (assume a density of 1.00 g/mL) Initial temperature of water 90, 1mL 90.19 22.10 13.050g 16.5°C -5.6°C 90.1g 21.9°C 13.0489 39.6°0 17.7°C Mass of salt Final temperature of solution Change in temperature (47) qwater qcal Arxn AHS per mole of salt in kJ/mol (AH) CAIUTTeter Calorimeter constant or heat capacity of the calorimeter (NOT the specific heat) Average Ccal 31.451°0...
Exercise #6: Enthalpy Problems Calorimetry Problems: AH = m(at)c, 500 kg of water cools from 95°C...
Exercise #6: Enthalpy Problems Calorimetry Problems: AH = m(at)c, 500 kg of water cools from 95°C to 20°C. How much heat energy was released by the water? C, of H2O(l) is 4.180 J/gºC. 2. How much heat energy is required to heat 45 g of sheet Fe from 24°C to 200°C? C of Fe(s) is 0.449 J/gºC. 3. A food chemist combusts 56 g of a chocolate bar in a calorimeter containing 1.5 L of water (density H,0 = 1g/ImL)....
how to do part a, trial 1 Data Analysis Part A. 1. Calculate the specific heat...
how to do part a, trial 1
Data Analysis Part A. 1. Calculate the specific heat for your metal for each trial. Remember that the heat lost by the metal is equal to the heat gained by the water in the calorimeter and by the calorimeter itself. This can be expressed as - metal (water + Jealorimeter). The specific heats are positive numbers. EXP 8 - Thermochemistry Trial 3 Trial Trial 2 Trial 3 Part C 2 40.408 g 109.536...
Just need a little help figuring out how to make the calculations
from my data
Data and Calculations 1. Determining the calorimeter constant Data % 8 (a) Mass of empty Styrofoam cups (b) Mass of cups + 70 ml water (c) Mass of cups + 70 ml water + 30 ml hot water (d) Initial temperature of water in the calorimeter (cups) (e) Temperature of the boiling water bath Trial 1 20.5 86.6 1 113.6 23 95 39 Trial 2...
Following the procedure in lab, a student heated their 36.353 g metal sample to 100.0°C . The metal was added to a coffee cup calorimeter containing 20.079 g of water at 21.9 *C . The final temperature of the water was 36 "С . Assuming no heat was absorbed by the calorimeter, calculate the specific heat of the metal. Report your answer in units of
1. A volume of water was heated to 83.90 °C and immediately added to 48.11 mL of water at 23.98 °C contained within a coffee cup calorimeter. The final temperature of the mixture was 40.86 °C. The final volume of water inside the calorimeter was 90.45 mL. Assuming that them heat capacity of the solution is 4.18 J/g/°C, calculate the following: a. The volume of hot water added ml b. The mass of hot water (dwater = 1.00 g/mL) c....
ty ah Run 2 Run 1 Average initial temperature of HCl and A NaOH solutions (°C) 29.8 32.4 Maximum temperature of HCl-NAOH solution (°C) 34.5 30.5 Maximum temperature change for reaction (°C) 13 Total volume of HCl plus NaOH solutions (mL) Mass of final NaCl solution (g) Heat produced from HCl-NaOH reaction (J) Moles of H,O formed in reaction (mol) Heat expected from moles of H,0 formed (J) Heat absorbed by calorimeter (J) Heat capacity of calorimeter (J/oC) Average heat...
1 A173.0g lead ball at 155°C is dropped into a calorimeter cup containing 210 g of water at 16.0°c. After equilibrium is reached, the temperature of water is increased to 18.2°C. What is the heat capacity of calorimeter? Assume that calorimeter and water are initially at the same temperature. (Specific heat of water is 4186 J/kg. C and specific heat of lead is 128 J/kg.C) 2. An unknown metal sample of 54 g at 108°C is dropped into a calorimeter...
3. A student constructs a coffee cup calorimeter and places 50.0 mL of water into it. After a brief period of stabilization, the temperature of the water in the calorimeter is determined to be 22.7 °C. To this is added 50.0 mL of water that was originally at a temperature of 54.5 C. A careful plot of the temperatures recorded after this established the temperature at To was 30.24 C. What is the calorimeter constant in J/C for this calorimeter?...
Ans. - 1155 B6J 242 + 2024NO AH-3616T 21tr022420 1871.LRT 4. 100.0 mL of water is placed in a calorimeter and allowed to reach an initial temperature of 23°C. A 45.0g block of Cu (SH = 0.385 J/g."C) at 285°C is placed in the water (SH = 4.18 J/g. °C) in the calorimeter. a) If the final temperature reached is 30°C, determine the heat capacity of the calorimeter? b) The same calorimeter was used to determine the heat of solution...
Table 4.3: Enthalpy of Dissolution for a Salt Caci, Na,CO, 104,0 Volume of water 90. 1 mL Mass of water (assume a density of 1.00 g/mL) Initial temperature of water 90, 1mL 90.19 22.10 13.050g 16.5°C -5.6°C 90.1g 21.9°C 13.0489 39.6°0 17.7°C Mass of salt Final temperature of solution Change in temperature (47) qwater qcal Arxn AHS per mole of salt in kJ/mol (AH) CAIUTTeter Calorimeter constant or heat capacity of the calorimeter (NOT the specific heat) Average Ccal 31.451°0...
Exercise #6: Enthalpy Problems Calorimetry Problems: AH = m(at)c, 500 kg of water cools from 95°C to 20°C. How much heat energy was released by the water? C, of H2O(l) is 4.180 J/gºC. 2. How much heat energy is required to heat 45 g of sheet Fe from 24°C to 200°C? C of Fe(s) is 0.449 J/gºC. 3. A food chemist combusts 56 g of a chocolate bar in a calorimeter containing 1.5 L of water (density H,0 = 1g/ImL)....
how to do part a, trial 1
Data Analysis Part A. 1. Calculate the specific heat for your metal for each trial. Remember that the heat lost by the metal is equal to the heat gained by the water in the calorimeter and by the calorimeter itself. This can be expressed as - metal (water + Jealorimeter). The specific heats are positive numbers. EXP 8 - Thermochemistry Trial 3 Trial Trial 2 Trial 3 Part C 2 40.408 g 109.536...
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