5) A 125-g sample of an unknown mineral was heated to 102.5°C and placed into a...

Question

Question

science chemistry

Answer 1

Answer #1

Heat energy associated with water = m* C* AT = 85.0 g * 4.184 J/(g.°C) * (53.0 - 19.5) °C = 11913.94 J Heat energy associated

Answer 2

Similar Homework Help Questions

A 125 g sample of an unknown substance is heated to 93.6 °C and then dropped...

A 125 g sample of an unknown substance is heated to 93.6 °C and then dropped into 100.0 g of water at 19.0°C in a calorimeter. The temperature of the water rises to 31.0°C. What is the specific heat of the substance? Assume no heat lost to the surroundings. The specific heat of water is 4.184 J/ (g•°C).
A 24.6 g sample of brass is heated in a flask to 125°C in boiling water...

A 24.6 g sample of brass is heated in a flask to 125°C in boiling water under pressure, and then is carefully added to a coffee cup calorimeter containing 75.0 g of water. The water temperature changes from 19.5 °C to 29.14 °C. What is the specific heat capacity of the brass? (Note: all heat given off is gained only by the water)
Specific Heat Capacity A 21.5-g sample of an unknown metal is heated to 94.0°C and is...

Specific Heat Capacity A 21.5-g sample of an unknown metal is heated to 94.0°C and is placed in a insulated container containing 128 g of water at a temperature of 21.4°C. After the metal cools, the final temperature of the metal and water is 25.0°C. Calculate the specific heat capacity of the metal, assuming that no heat escapes to the surroundings. Heat loss=Heat gained. Specific Heat Capacity of water is 4.18 J/g/K in this temperature range. Submit Answer Incompatible units....

A 32.0-g sample of an unknown metal at 99°C was placed in a constant-pressure calorimeter containing...

A 32.0-g sample of an unknown metal at 99°C was placed in a constant-pressure calorimeter containing 60.0 g of water at 24.0°C, The final temperature of the system was found to be 28.4℃ Calculate the specific heat of the metal. (The heat capacity of the calorimeter is 14.4/C) J/g °C
A 24.5-g sample of an unknown metal is heated to 91.5°C and is placed in a...

A 24.5-g sample of an unknown metal is heated to 91.5°C and is placed in a perfectly insulated container along with 186.g of water at an initial temperature of 21.15°C. After a short time the temperature of both the metal and water become equal at 23.70°C. The specific Heat Capacity of water is 4.18 J/g/K in this temperature range. What is the specific heat capacity of the metal?
8 A 44.0 g sample of an unknown metal at 99.0°C was placed in a constant...

8 A 44.0 g sample of an unknown metal at 99.0°C was placed in a constant pressure calorimeter containing 80.0 g of water at 24.0°c. The final temperature of the system was found to be 28.4°C. Calculate the specific heat of the metal. (The specific heat capacity of water is 4.184 J/C) 2.03 J/g C A. В. 1.01 J/g°C 0.474 J/g°C 0.246 J/g.°C 3.22 J/g.°C C. D. Е. of methanol (CH OH)

A 50g sample of iron is heated to 75.2°C and placed into a calorimeter holding 70g...

A 50g sample of iron is heated to 75.2°C and placed into a calorimeter holding 70g of water at a temperature of 25°C. Assuming no heat loss to the calorimeter, what will be the final temperature reached in the calorimeter? Specific heat capacity of iron = .444J/g•C° Specific heat capacity of water = 4.184J/g•C°
Enter your answer in the provided box. A 24.0-g sample of an unknown metal at 99°C...

Enter your answer in the provided box. A 24.0-g sample of an unknown metal at 99°C was placed in a constant-pressure calorimeter containing 60.0 g of water at 24.0°C. The final temperature of the system was found to be 28.4°C. Calculate the specific heat of the metal. (The heat capacity of the calorimeter is 12.4 J/°C.) J/g. °C
A 25.0g sample of an unknown metal was heated to 100.0 degrees C and placed into...

A 25.0g sample of an unknown metal was heated to 100.0 degrees C and placed into a beaker containing 90.0g of water at 25.32 degrees C. The temperature of the water rose to a final value of 27.18 degrees C. Neglecting heat loss to the room and the heat capacity of the beaker itself, what is the specific heat of the metal? Using the given specific heat values below (in cal/g degrees C), identify the unknown metal. Barium 0.068 Chromium...

A 60.80 gram sample of iron (with a heat capacity of 0.450 J/g◦C) is heated to...

A 60.80 gram sample of iron (with a heat capacity of 0.450 J/g◦C) is heated to 100.00 ◦ It is then transferred to a coffee cup calorimeter containing 52.42 g of water (specific heat of 4.184 J/ g◦C) initially at 20.47 ◦C. If the final temperature of the system is 28.78, what was the heat gained by the calorimeter? If the calorimeter had a mass of 25.19 g, what is the heat capacity of the calorimeter?