A solid substance has a mass of 150 grams. It is cooled from 25°C to 5°C and loses 8.675 kJ of heat. What is the specific heat capacity of the substance?

Q: Determine the enthalpy change when 150g of 10˚C water was placed into a calorimeter. 90g of sulfuric…

A: The heat absorbed by the solution can be calculated as: q=mc∆Tm = mass of solutionc = specific heat…

Q: In an experiment, 22.5 g of metal was heated to 98.0°C and then quickly transferred to 150.0 g of…

A: Given :Mass of metal (M1) = 22.5 gT = 98.0°CMass of water (M2) = 150 gInitial temperature of the…

Q: 4. A 41.3g piece of metal heated to 93.1°C and dropped into a calorimeter containing 58.3g of water…

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A: #2: The change in internal energy(∆U), heat(q), and work done(w) are related through the 1st law of…

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 124.0 g sample…

A: We are assuming no any phase change during additon of heat .  Change in temperature  = 9.9 -(-2.6)…

Q: A certain chemical reaction releases 111.kJ of heat energy per mole of reactant consumed. Suppose…

A: Heat capacity of calorimeter: Ccal = 4.45 J / 1oC = 4.45 J/oC   Heat of calorimeter: q cal  = C cal…

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Q: Nitromethane (CH3NO2) burns in air to produce significant amounts of heat. 4 CH3NO2(l) + 3…

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Q: 1. Melted methane was ignited and used to heat water in a thin metal container. After a short period…

A: Enthalpy of combustion is defined as the amount of heat released by burning of one mole of compound.

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Q: You want to determine the heat capacity of an unknown metal sample in order to help identify it. To…

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Q: A. You transfer a steel ball bearing weighing 35 g (specific heat = 0.12 cal/g°C) from your boiling…

A: The question is based on the concept of specific heat capacity.  It is defined as the amount of heat…

Q: å bomb calorimeter, the reaction vessel is surrounded by water that must be added for each…

A: Given: Mass of water 1.00 kg. Total heat capacity is 10.84 kJ/˚C.

Q: A piece of metal weighing 5.10 g at a temperature of 48.6°C was placed in a calorimeter in 20.00 mL…

A: Interpretation: A piece of metal weighting 5.10 g at a temperature of 48.6°C was placed in a…

Q: 6. A 40.00 g sample of water at 22.00°C is put in a calorimeter. After 60.00 g of water at 65.00°C…

A: (6) Given - Mass of water at 22.00°C = 40.00 g  Mass of water at 65.00°C = 60.00 g  Final…

Q: Your favorite snack undoubtedly has a nutrition label that indicates the total number of calories…

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Q: 11. A piece of metal weighing 3.20 grams is heated to 100. °C. It is dropped into 50.0 grams of…

A: 11) Mass of the piece of metal = 3.20 grams Temperature=  100o CMass of water in calorimeter = 50…

Q: In the laboratory a "coffee cup" calorimeter, or constant pressure calorimeter, is frequently used…

A: Given : mass of cold water = 84.35 g Mass of hot copper = 62.86 g Initial temperature of hot copper…

Q: 4. A 10.0 gram piece of Al, originally at 100°C, is dropped into a calorimeter cup containing 100.0…

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Q: Using a coffee cup calorimeter, 4.02 g of ammonium chloride is added to 100g of water at 25 degrees…

A: Given: Mass of ammonium chloride i.e NH4Cl = 4.02 g Mass of water = 100 g Initial temperature of…

Q: piece of iron (mass = 25.0 g) at 398 K is placed in a styrofoam coffee cup containing 25.0 mL of…

A: We have to calculate the final temperature of water.

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Q: 4. An unknown substance requires 567 J of heat to increase its temperature from 0 to 15 °C. The…

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Q: Ignition wires heat sample Thermometer A bomb calorimeter, or constant volume calorimeter, is a…

A: The total amount of energy, q, released when 0.878 g of isophthalic acid is burned is;…

Q: A certain chemical reaction releases 368.kJ of heat energy per mole of reactant consumed. Suppose…

A: In case of a calorimeter we can relate the heat change of a system to the product of thenumber of…

Q: 4. A 505 gram piece of copper tubing is heated to 99.0 °C and placed in an insulated vessel…

A: Heat capacity: The amount of heat required to increase the temperature of a substance by one-degree…

Q: A 138.9 g sample of an unknown metal at a temperature of 99.1 °C is added to 44.72 g of water at a…

A: Q = mC∆T

Q: In a simple calorimeter, a piece of metal weighing 48.67 g was heated to 120.0 °C and then put it…

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Q: 15. A 25.0 g piece of aluminum (which has a molar heat capacity of 24.03J/°Cmol) is heated to 82.4°C…

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Q: 4. The combustion of toluene (C7H8) has a heat of reaction of -3.91 x 103 kJ/mol. When 1.55g toluene…

A: Her 1.55 g of toluene is combusted In a bomb calorimeter .The temperature  rise from 23.12°C to…

Q: Determine the enthalpy change when 150g of 10˚C water was placed into a calorimeter. 4.90g of…

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Q: 1. 50.0 g of water are added to a calorimeter at 22.35°C. An additional 50.0 g of water are heated…

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Q: 3. In this experiment, we have used 1.0 x 1.01 J/°C for the heat capacity of the coffee-cup…

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Q: 4. A 0.1375-g sample of solid magnesium is burned in a constant-volume bomb calorimeter that has a…

A: • Specific Heat Capacity = qm.∆T J/g• Specific Heat Capacity = q.mm.∆T J/mol.Where,q → heat…