A 20.94 g sample of a metal is heated to 99.4°C in a hot water bath until thermal equilibrium is reached. The metal sample is quickly transferred to 100.0 g of water at22.0°C contained in a calorimeter. The thermal equilibrium temperature of the metalsample plus water mixture is 24.6°C. What isthe specific heat of the metal? Express the specific heat with the correct number of significant figures.

Q: In the laboratory a student finds that it takes 75.4 Joules to increase the temperature of 13.3…

A: Specific heat capacity is the amount of heat that is required to rise a temperature of 1 kg…

Q: When 151.0 mL of water at 26.0 C is mixed with 71.0 mL of water at 85.0 C, what is the final…

A:

Q: 4. When 155 mL of water at 20.0°C is mixed with 75.0 mL of water at 80.0°C, what is the final…

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Q: A gas in a closed container is heated, causing the lid of the container to rise. The gas performs 3J…

A: Given: work done ( w) = - 3 J Internal energy change ( ∆U ) = + 15 J Heat absorbed ( q ) = ? By…

Q: A 35.0-g sample of water at 25°C is mixed with 45.0 g of water at 88°C. Calculate the final…

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Q: solid, or to measure the energy of a solution phase reaction. A student heats 65.30 grams of gold to…

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Q: A 20.8 g piece of metal has a specific heat of 0.52 J/g°C. It was heated to 9.5°C then placed inside…

A: Formula used :  -q(lost) = q(gained) If no heat is lost to the surrounding.

Q: A 10 g piece of copper at 145 oC is placed in 150 mL of water. The initial temperature of water is…

A:

Q: what is the anwser to  A student heats a 200 g sample of water from 20oC to 80oC. The specific heat…

A: The answer to the following question is-

Q: If 63.50 g of an unknown metal at 97.6 °C initially produced a resulting temperature of 39.5 °C when…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: The mixture of gas and air inside a cylinder reacts, releasing 400kJ total energy. If the system…

A: Given:   The total energy is 400 kJ. The work done by system is 250 kJ.

Q: A piece of a mysterious metal has a mass of 455g. It was determined that its heat capacity is 34.3…

A: The heat capacity of a given substance is defined as the amount to heat required to raise the…

Q: How much heat is given off to the surroundings when 7 g of aluminum reacts according to the…

A: The enthalpy of the reaction is considered as the state function that is it depends only on the…

Q: A block of metal weighing 57.58 g is cooled from 100.0°C to 42.16°C with the release of 544.08…

A: Given, Mass of metal (mmetal) = 57.58 g Initial temperature (Ti) = 100°C Final temperature (Tf) =…

Q: A sample of water with a mass of 9.51 grams and an initial temperature of 71.2°C is combined with an…

A: Since the heat gained by water is the heat lost by the object  And heat gained by water is given by…

Q: An iron bar of mass 869 g cools from 94°C to 5°C. Calculate the heat released (in kilojoules) by the…

A: Q = m . s . ∆T

Q: The mixture of gas and air inside a cylinder reacts, releasing 400 kJ of total energy. If the system…

A: 150 kJ of heat is released from the system

Q: A slab of iron ( 465g) is removed from an oven and plunged into 375g water in an insulated…

A: Given, Mass of iron, mi = 465gMass of water, mw = 375g(Tw)i = 26oC , (Tw)f = 87oC Cfe = 0.449 J/g oC…

Q: A 35.0-g sample of water at 25°C is mixed with 45.0 g of water at 88°C. Calculate the final…

A: Calculate for the final temperature of the mixture see step-2 for further Calculation and concept…

Q: A hot lump of 29.8 g of copper at an initial temperature of 50.7 °C is placed in 50.0 mL H2O…

A: Given data is: Mass of copper = 29.8 g Initial temperature = 50.7°C Mass of water = 50.0 ml Density…

Q: Sodium chloride, the table salt (NaCl) is added in cooking to enhance the flavor of the food.  When…

A: Mass of water = 200ml  Initial temperature = 25oC Specific Heat Capacity =  4.18 J/g.oC Heat = 669J…

Q: A 15.7 g aluminum block is warmed to 53.2 deg C and plunged into an insulated beaker containing 32.5…

A: Given that,Mass of Aluminium is 15.7 gMass of water is 32.5 gInitial temperature of Aluminium is…

Q: A 192-gram piece of copper was heated to 100.0oC in a boiling water bath, and then it was dropped…

A: According to law of calorimetry heat absorbed  = heat released.  Copper has higher temperature so it…

Q: A 500-mL bottle of water and a 2-L bottle of water were both at room temperature. Then they were…

A: Heat gained or lost,  Q = mCPΔTFrom the above equation it is clear that the heat lost or gained…

Q: Chargers for cell phones get warm while they are being used. Some of the energy that they are using…

A: The solution is given below -

Q: When thermal energy is transferred from the system to its surroundings, heat (q) is:

A: When thermal energy is transferred from the system to its surroundings, heat (q) is negative  It is…

Q: When 126.0 mL of water at 26.0 ° C is mixed with 66.0 mL of water at 85.0 ° C, what is the final…

A: Given are two samples of water.  The mass of water in two samples can be calculated as

Q: An unknown hot metal at 146.5°C with a mass of 49.43g was mixed with 36.8g of water at an initial…

A: specific heat is defined as the quantity of heat required to raise the temperature of one gram of a…

Q: When 156.0 mL of water at 26.0°C is mixed with 86.0 mL of water at 85.0°C, what is the final…

A: Convert the given mL of water into mass.Given, density of water = 1.00 g/mL

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

A: Given, Amount of heat required (Q) = 567 J Initial temperature (Ti) = 0°C Final temperature (Tf) =…

Q: A hot lump of 37.0 g of copper at an initial temperature of 74.3 °C is placed in 50.0 mL H2O…

A: Given;

Q: A 350g sample of aluminum is taken out of the freezer at –20oC and placed into 500g of water at 14.6…

A: Given Mass of water = 500 g Initial temperature = 14.6°C Final temperature = 10°C Mass of…

Q: A 25-gram metal ball is heated 200 °C with 2330 Joules of energy. What is the specific heat of the…

A: Let specific heat of metal = s J/g.oC Heat absorbed, q = ms∆T                       2330 = 25 x s x…

Q: An unknown hot metal at 122.41°C with a mass of 53.37g was mixed with 28.15g of water at an initial…

A: We have to calculate the  specific heat of the unknown metal.

Q: Chargers for cell phones get warm while they are being used. Some of the energy they are using is…

A: Given  Energy needed for charging = 235 J  Energy wasted as heat = 345 J

Q: An unknown solid metal at 150 degrees celsius was placed in 1.00 L of water at 25 degrees celsius.…

A: Heat absorbed or emitted by a substance = mass of the substance x specific heat of the substance x…

Q: If a 42.0g piece of steel at 75.0 degrees C is placed in 150.0 g of water at 25.5 degrees C, what is…

A:

Q: A hot lump of 33.8 g of iron at an initial temperature of 51.8 C is placed in 50.0 mL H,0 initially…

A:

Q: A hot lump of 42.4g of copper at an initial temperature of 64.7 °C is placed in 50.0 mL H2O…

A: The given data to you is - mass of Cu = 42.4 g Volume of water = 50 mL Temp of Cu = 64.7 °C  Temp of…

Q: 27-gram piece of metal at 144  oC is dropped into 86 grams of water at 29 oC.  The water temperature…

A:

Q: 2. An 88.5 gram piece of iron initially at 78.8°C is place in a beaker containing 244 grams of water…

A:

Q: A hot lump of 44.6 g of copper at an initial temperature of 66.5 °C is placed in 50.0 mL H2O…

A: Introduction The specific heat of any particular metal can be used to denote the heta which is…

Q: In the laboratory a student determines the specific heat of a metal. He heats 18.4 grams of…

A:

Q: An unknown hot metal at 107.03°C with a mass of 48.67g was mixed with 37.99g of water at an initial…

A: Given data contains, Mass of unknown metal , mm= 48.67 gInitial temperature , Tim= 107.03°CMass of…

Q: 2. A solid substance has a mass of 250 grams. It is cooled by 25.00°C and loses 4.937 kJ of heat.…

A:

Q: Calculate the specific heat of a metal if 45.0 grams of the metal at 100.0 °C, when placed into…

A:

Q: A hot lump of 37.137.1 g of iron at an initial temperature of 95.6 °C95.6 °C is placed in 50.0 mL…

A:

Q: A lead fishing weight has a mass of 57 g. The weight absorbs 146 cal of heat. If its initial…

A: The specific heat of a compound suggests the amount of heat needed for per unit mass of the compound…

Q: A 42.0 g sample of water at 100.00°C was placed in an insulated cup. Then 15.4 g of zinc metal at…

A: Given, A 42.0 g sample of water at 100.00°C was placed in an insulated cup. Then 15.4 g of zinc…

Q: How much heat is given off to the surroundings when 6 g of aluminum reacts according to the…

A: Thermodynamics is the branch of chemistry that mainly deals with the heat transfer between system…