A  20.7 gram piece of metal at 152.2  oC is dropped into 80.9 grams of water at 18.3 oC.  The water temperature rose to 52.8 oC.   Calculate the specific heat of metal in J/g oC.

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Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 796.0 mg sample…

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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: Calculate the joules of heat required to raise the temperature of 34 g copper bowl from 20 oC to 45…

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

Q: The specific heat of gold is 0.13 J/gC and copper is 0.39 J/gC. Suppose we heat a 25 g sample of…

A: The specific heat of gold is 0.13 J/gC and copper is 0.39 J/gC. Mass of gold sample=25g=mass of…

Q: Enter your answer in the provided box. A system conducts 197 cal of heat to the surroundings while…

A: Recall the following expression from first law of thermodynamics          ∆U=q + w amount of heat…

Q: A 70.0 gram metal bar is heated to 256 celsius then submerged into a well insulated calorimeter…

A: Given mass of metal bar Mb = 70g  Mass of water Mw = 50g  Complete solution is given below in next…

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 1.87 kg sample…

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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: In the laboratory a student uses a "coffee cup" calorimeter to determine the specific heat of a…

A: Mass of chromium, m1 = 18.5 g Mass of water, m2 = 81.3 g Temperature of chromium, T = 98.04 °C…

Q: 125 mL of H20 is initially at room temperature (22.0°C). A chilled steel rod at 2.0°C is placed in…

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Q: In order to change the temperature of 147 g of lead from 22 o C to 55.oC, how many Joules are…

A: Q = mc∆T Q = heat M = mass C = specific heat capacity ∆T = change in Temp.   M = 147 g ∆T = Tfinal –…

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

A: The total energy required to charge a cell phone is equal to the energy a cell phone battery needs…

Q: repair crews to weld rails together. -) Ⓡ 2Fe(s) + Al2O3(s) DH rxn= -850 kJ -n, in grams, is formed…

A: Exothermic process is the one in which energy is liberated from the system to the surrounding in the…

Q: A chemical substance has a specific heat of 0.897 J/g-ºC. If an unknown mass of this substance is…

A: Answer:- This question is answered by using the simple concept of calculation of heat using the…

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

A:

Q: A 25.64g sample of solid was heated in a test tube to 100 degrees Celcius in boiling water and…

A: Given:Mass of sample = 25.64gT = 100o CMass of water = 50 gTemperature increased from 25.10 degrees…

Q: A block of copper is heated to 392 °C and then is dropped into a coffee cup calorimeter containing…

A: Heat gained by water = Heat lost by block of copper Therefore,  qwater = -qcopper   Heat gained by…

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: The temperature of a sample of copper increased by 24.7 °C when 275 J of heat was applied. Substance…

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

Q: A 5.0 g piece of metal is heated to 100 degrees Celsius, then placed in a beaker containing 20.0 g…

A: Given:Specific heat of water = 4.18 J/g. oCMass of metal = 5.0 gMass of water = 20.0 g.Initial…

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 732.0 mg sample…

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Q: A metal radiator is made from 13.96 kg of iron. The specific heat of iron is 0.449 J/g °C. How much…

A: Given;

Q: A 312 g sample of a metal is heated to 281.562 °C and plunged into 200 g of water at a temperature…

A: Here we can calculate the heat gained by water using its specific heat , mass and temperature…

Q: In the laboratory a student determines the specific heat of a metal. He heats 18.8 grams of aluminum…

A: Given that-Mass of aluminium=18.8 gramsIts initial temperature=98.63°CMass of water=79.1 gramsIts…

Q: Determine the total heat evolved in Joules in a solution of 19 mL of NAOH and 19 mL of HCI…

A: Given, Volume of NaOH = 19 mL Volume of HCl = 19 mL Initial temperature, Ti=26.8°C Final…

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 631.0 g sample…

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Q: In addition to calculating specific heat capacities, some calorimeters can be used to determine how…

A: A) The number of Joules in 1 calorie = 4.184 J.

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 20.94 g sample of a metal is heated to 99.4°C in a hot water bath until thermal equilibrium is…

A: The heat lost by the metal is determined as follows,

Q: A sample of a metal weighing 18.3 g was heated to 99.9°C, then placed into a calorimeter containing…

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Q: Initial Temperature of Metal 200.0 C Specific Heat of Metal Mass of Water 250.0 grams Initial…

A: The temperature of water increases from20oC to 24.08oC,  so the water absorbs heat. That heat comes…

Q: A beaker of hot water with a volume of 43.9 mL has an initial temperature of 94.3 °C. You place a…

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Q: In the laboratory a student uses a "coffee cup" calorimeter to determine the specific heat of a…

A:

Q: A 116.21gram sample of gold is initially at 120.2°C. It loses 0.393kJ of heat to its surroundings.…

A:

Q: In the laboratory a student uses a "coffee cup" calorimeter to determine the specific heat of a…

A: Here, we need to calculate the value of specific heat of tin. Specific heat formula is used to…

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: Measuring the change in temperature versus time upon addition of a hot metal specimen to 10.3 mL of…

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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…

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

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

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Q: 1. How much heat must your body transfer to 500.0g of water to heat it from 25.0°C to body…

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Q: A 125.0 g sample of metal at 85.0°C is placed in 165.0 g of water at 18.0 °C.  The temperature of…

A: Metal is at higher temperature and water is at lower temperature. Metal transfers the heat to water…

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…

Q: It takes 48.0 J to raise the temperature of an 10.7 g piece of unknown metal from 13.0° C to 24.3…

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