Homework Answers
9. Four ice cubes exactly at-50 °C with a total mass of 53.5 g are combined with 1 15 g of water at 75 °C in an insulated container. If no heat is lost to the surroundings, what is the final tempe...
9. Four ice cubes exactly at-50 °C with a total mass of 53.5 g are combined with 1 15 g of water at 75 °C in an insulated container. If no heat is lost to the surroundings, what is the final temperature of the mixture? The heat capacity of ice is 2.03 JIg C and that of water is 4.18 JIg C. The heat of fusion of water is +6.01 kJ/mol. (1.5 pts)
9. Four ice cubes exactly at-50 °C...
A 19 g sample of an alloy at 98.0°C is placed into 84.6 g of water at 22.0 °C in an insulated coffee cup with a heat cap...
A 19 g sample of an alloy at 98.0°C is placed into 84.6 g of water at 22.0 °C in an insulated coffee cup with a heat capacity of 9.2 J/K. If the final temperature of the system is 35.0°C, what is the specific heat capacity of the alloy in J/(g.K)? Don't include units. cH2O = 4.184 J/g.K
Check my work What mass of water at 25.0°C added to a Styrofoam cup containing two...
Check my work What mass of water at 25.0°C added to a Styrofoam cup containing two 420 g ice cubes from a freezer at -18.8°C will result in a final temperature of 5.00°C for the drink? The specific heat of ice is 210 Jig K and that of water is 4.186 JOK. The latent heat of ice is 3337 Jig yoints
If the temperature of 100.0 mL of water rises from 25.0°C to 32.0°C, how much heat...
If the temperature of 100.0 mL of water rises from 25.0°C to 32.0°C, how much heat was added? Assume the density of water is 1.00 g/mL and the specific heat capacity of the water is 4.184 J/g°C. Include units and use the correct number of significant figures. Define the terms "exothermic" and "endothermic". What is the sign of AH associated with these two terms? Exothermic: Endothermic
#6 When 108 g of water at a temperature of 21.1 °C is mixed with 65.7...
#6 When 108 g of water at a temperature of 21.1 °C is mixed with 65.7 g of water at an unknown temperature, the final temperature of the resulting mixture is 47.6 °C. What was the initial temperature of the second sample of water? (The specific heat capacity of liquid water is 4.184 J/g ⋅ K.) Initial temperature = °C
We place 88.8 g of a metal at 90.00◦C in 222.2 g of water at 20.00◦C....
We place 88.8 g of a metal at 90.00◦C in 222.2 g of water at 20.00◦C. The water is in a beaker that is also at 20.00◦C. The specific heat of water is 4.184 J K−1 g −1 and the final temperature of both substances and the beaker is 23.00◦C. The heat capacity of the beaker is 0.777 kJ K−1 . What is the specific heat of the metal? (answer 0.861 JK-1g-1)
A hot lump of 32.3 g of copper at an initial temperature of 96.5°C is placed...
A
hot lump of 32.3 g of copper at an initial temperature of 96.5°C is
placed in 50.0 mL H2O initially at 25.0°C and allowed to reach
thermal equilibrium. What is the final temperature of the copper
and water given that the specific heat of copper is 0.385J/g°C and
the specific heat of water is 4.184J/g°C?
4. A hot lump of 32.3 g of copper at an initial temperature of 96.5°C is placed in 50.0 mL H20 initially at 25.0°C...
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....
please show work? Question 34 (8 points) A 50.0 g sample of H20 at 100.00°C was...
please show work?
Question 34 (8 points) A 50.0 g sample of H20 at 100.00°C was placed in an insulated cup. Then 25.3 g of a metal at 25.00°C was added to the water. The temperature of the water dropped to 96.68°C. What is the specific heat of the metal in J/g°C? The specific heat of water is 4.184 J/g°C. Assume that the heat absorbed by the cup is negligible. Please report your answer to the correct number of significant...
9. Four ice cubes exactly at-50 °C with a total mass of 53.5 g are combined with 1 15 g of water at 75 °C in an insulated container. If no heat is lost to the surroundings, what is the final temperature of the mixture? The heat capacity of ice is 2.03 JIg C and that of water is 4.18 JIg C. The heat of fusion of water is +6.01 kJ/mol. (1.5 pts)
9. Four ice cubes exactly at-50 °C...
Check my work What mass of water at 25.0°C added to a Styrofoam cup containing two 420 g ice cubes from a freezer at -18.8°C will result in a final temperature of 5.00°C for the drink? The specific heat of ice is 210 Jig K and that of water is 4.186 JOK. The latent heat of ice is 3337 Jig yoints
If the temperature of 100.0 mL of water rises from 25.0°C to 32.0°C, how much heat was added? Assume the density of water is 1.00 g/mL and the specific heat capacity of the water is 4.184 J/g°C. Include units and use the correct number of significant figures. Define the terms "exothermic" and "endothermic". What is the sign of AH associated with these two terms? Exothermic: Endothermic
A
hot lump of 32.3 g of copper at an initial temperature of 96.5°C is
placed in 50.0 mL H2O initially at 25.0°C and allowed to reach
thermal equilibrium. What is the final temperature of the copper
and water given that the specific heat of copper is 0.385J/g°C and
the specific heat of water is 4.184J/g°C?
4. A hot lump of 32.3 g of copper at an initial temperature of 96.5°C is placed in 50.0 mL H20 initially at 25.0°C...
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....
please show work?
Question 34 (8 points) A 50.0 g sample of H20 at 100.00°C was placed in an insulated cup. Then 25.3 g of a metal at 25.00°C was added to the water. The temperature of the water dropped to 96.68°C. What is the specific heat of the metal in J/g°C? The specific heat of water is 4.184 J/g°C. Assume that the heat absorbed by the cup is negligible. Please report your answer to the correct number of significant...
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