m(water) = 54.849 g
T(water) = 29.5 oC
C(water) = 4.184 J/goC
m(metal) = 14.57 g
T(metal) = 100.0 oC
C(metal) = to be calculated
We will be using heat conservation equation
use:
heat lost by metal = heat gained by water
m(metal)*C(metal)*(T(metal)-T) =
m(water)*C(water)*(T-T(water))
14.57*C(metal)*(100.0-37.5) = 54.849*4.184*(37.5-29.5)
910.625*C(metal) = 1835.9057
C(metal)= 2.0161 J/goC
Answer: 2.02 J/goC
Question 4 2.5 pts Following the procedure in lab, a student heated their 14.57 g metal...
Question 4 2.5 pts Following the procedure in lab, a student heated their 14.57 g metal sample to 100.0°C. The metal was added to a coffee cup calorimeter containing 54.849 g of water at 29.5°C. The final temperature of the water was 37.5° C. Assuming no heat was absorbed by the calorimeter, calculate the specific heat of the metal. Report your answer in units of a
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
2. (15 pts) A 83.5 g sample of a metal alloy is heated to 88.1°C and it is then placed in a coffee-cup calorimeter containing 30.0 g water at 15.0°C. The final temperature of the metal + water is 25.3 °C. Calculate the specific heat of metal alloy, in J/(g°C), assuming no heat escapes to the surroundings or is transferred to the calorimeter. The specific heat of water is 4.184 J/(g°C).
A 83.5 g sample of a metal alloy is heated to 88.1oC and it is then placed in a coffee-cup calorimeter containing 30.0 g water at 15.0oC. The final temperature of the metal + water is 25.3 oC. Calculate the specific heat of metal alloy, in J/(g oC), assuming no heat escapes to the surroundings or is transferred to the calorimeter. The specific heat of water is 4.184 J/(g oC).
UL. HAL IVCI U IS DIUROFIN S 2. (15 pts) A 83.5 g sample of a metal alloy is heated to 88.1°C and it is then placed in a coffee-cup calorimeter containing 30.0 g water at 15.0°C. The final temperature of the metal + water is 25.3 "C. Calculate the specific heat of metal alloy, in J/g °C), assuming no heat escapes to the surroundings or is transferred to the calorimeter. The specific heat of water is 4.184 J/g °C)....
A 61.93 gram sample of iron (with a specific heat of 0.450 J/g °C) is heated to 100.0 °C. It is then transferred to a coffee cup calorimeter containing 40.6 g of water (specific heat of 4.184 J/ g °C) initally at 20.63 °C. If the final temperature of the system is 23.59, what was the heat absorbed (q) of the calorimeter? (total heat absorbed by the water and calorimeter = heat released by the iron)
Question 5 2.5 pts In lab, a student weighed out 3.852 g of an unknown salt. Her coffee cup calorimeter weighed 39.845 g. After adding water it weighed 83.141 g. Before the addition of salt, the temperature of the water in the coffee cup was 17°C. After all the salt dissolved the maximum temperature was 21.7°C. Calculate the enthalpy of solution for the salt, AHIn Report your answer in J. You can practice the math using this virtual lab. Note:...
Question 5 2.5 pts In lab, a student weighed out 3.852 g of an unknown salt. Her coffee cup calorimeter weighed 39.845 g. After adding water it weighed 83.141 g. Before the addition of salt, the temperature of the water in the coffee cup was 17°C. After all the salt dissolved the maximum temperature was 21.7°C. Calculate the enthalpy of solution for the salt, AHIn Report your answer in J. You can practice the math using this virtual lab. Note:...
PRE-LAB QUESTIONS: Name: Date: Partner's Name: 1) A 19.29 g of unknown metal is heated to 99.7 "C in a hot water bath. The quickly transferred to a calorimeter containing 500 ml of water at 23 The temperature for the mi (Density of water 1.0 g/mL) metal sample is final maximum xture, from the graph, is 26.4 °C. What is the specific heat of the metal? 2) During the experiment (finding specific heat of unknown metal), when hot metal is...
9. A 48.8 g piece of an unknown metal was heated to 99.8°C, then dropped into a coffee cup calorimeter containing 40.0 g of water at 26.3°C The temperature of the water increased to 30.2°C. How much heat flowed into the water? What is the specific heat of the unknown metal?