Calculate the amount of heat liberated (in kJ) from 274 g of mercury (Hg) when it cools from 89.0°C to 25.0°C.   * [ specific heat (s) of Hg =  0.139  J/g ⋅ C ]   * ( 1 kJ  =  1000 J )

Q: Calculate the amount of heat needed to boil 146. g of benzene (C6H6), beginning from a temperature…

A: Step 1: Heating to Boiling Point: Step 2: Vaporization: Step 3: Total Heat Step 4:

Q: How much heat energy is required to raise the temperature of 0.366 kg of copper from 23.0 ∘C to 60.0…

A: The heat energy required to raise the temperature can be calculated as follows,

Q: Benzene is a starting material in the synthesis of nylon fibers and polystyrene (styrofoam).  Its…

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Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 1.97 kg sample…

A: We know that heat involved and specific heat capacity of a system are related by the equation- ∆H =…

Q: If 1001 J of heat is available, what is the mass in grams of iron (specific heat = 0.450 J/g･°C)…

A: Given Heat ( Q ) = 1001 Joule  Specific heat ( s ) = 0.450 Joule/gram℃  Initial temperature ( T1 ) =…

Q: If 32.2 g of ethanol at 21.5 °C absorbs 2.39 kJ of heat, what is the final temperature (in C) of the…

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Q: A 228-g coin made of zinc is heated and placed in 100.0 g of water at 16.0°C. The temperature when…

A: The heat change during a chemical reaction is ; q=mc∆Tm=mass of substancec=specific heat…

Q: A 22.1 g piece of aluminum (which has a molar heat capacity of 24.03 J/°C-mol) is heated to 82.4°C…

A: Given: Mass of Al = 22.1 g.Initial temperature of Al = 82.4 oCInitial temperature of water =22.3…

Q: A 1.37 kg sample of an unknown substance was heated up using 8,011 cal of energy from 45.1 °C to…

A: We are given the sample of unknown  species  mass=1.37 kg=1370 gm Energy Q=8011 cal 1 cal =4.184…

Q: The specific heat of octane, C8gH18g is 2.22 J/ (g*K). How many J of heat are needed to raise the…

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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: Calculate the amount of heat (in kJ) required to heat 3.07 kg of water from 13.11°C to 42.30°C.…

A: The mass of water The temperature of water changes from  to We have to calculate the amount of heat…

Q: 261.28 mL of 4.0°C water is heated until its temperature is 48.24°C. If the specific heat of water…

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Q: A sample of silver (cs = 0.235 J/(g-°C)) is heated to 84.92°C and then dropped into 31.53 g of water…

A: Specific heat: Amount of energy required to raise the temperature of water by one degree. We can…

Q: An unknown substance with a mass of 45.12 absorbs 261.3 J of heat. Its temperature increases from…

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Q: A 7.78 g sample of methanol was combusted in a bomb calorimeter. The temperature of the calorimeter…

A: In order to find molar enthalpy in kJ/mol, we have to find heat absorbed/received by calorimeter in…

Q: The specific heat of a certain type of metal is 0.128 J/(g*c). What is the final tempature if 305J…

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Q: How many joules of heat are needed to raise the temperature of 10.0g of aluminum from 22 degrees…

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Q: None

A: Benzene has a boiling point of 80.1 °C and a melting point of 5.5 °C. At a temperature of 7.3 °C,…

Q: Suppose that 384 mL of water changes in temperature from 63.73°C to 58.19°C. What is qwater in…

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Q: Calculate the amount of heat, in J, required to warm 224 g of sand from 25.0 ºC to 284 ºC.  The…

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Q: A 4.7-gram metal is heated to 86.7 degrees Celsius . It is then placed inside a coffee-cup…

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Q: How much energy would it take to heat a section of the copper tubing that weighs about 520.0 g ,…

A: Given:Mass of Cu = 520.0 gHeating from 14.68 ∘C to 21.23 ∘CSpecific heat of  Cu 0.3850 J/(g⋅∘C).

Q: How much heat is required to warm 1.70 kgkg of sand from 22.0 ∘C∘C to 100.0 ∘C∘C?

A: Q (heat capacity)= mc(delta T) where m = mass of the substance            c = specific heat of…

Q: Decide how the objects in the following table would be listed, if they were listed in order of…

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Q: Answer: Calculate the specific heat of lead if a 250.00 gram sample of lead at 98.5°C is placed into…

A: The solution is shown below

Q: If 801 J of heat is available, what is the mass in grams of iron (specific heat = 0.45 J/g･°C) that…

A: Q = heat =801 J ΔT = change in temperature = (120 - 22.5) = 97.5 oC c = Specific heat = 0.45 J/goC…

Q: Consider the balanced thermochemical equation given below: 2 Ba(s)  +  O2(g)  →  2BaO(s)…

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Q: Specific Metal Heat (J/g°C) Calcium 0.647 Iron 0.449 Silver 0.235 Gold 0.129 In joules, how much…

A: The amount of heat involved in changing the the temperature of any substance is given by formula - Q…

Q: 50.00 grams of water in a calorimeter at 22.9 degrees Celsius. At equilibrium the temperature of the…

A: Initial temperature of water (T1) = 22.9 °C Final temperature of water T2= 37.6 °C So, Change in…

Q: A metal sample weighing 129.50 grams and at a temperature of 98.8 degrees Celsius was placed in…

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Q: Suppose that 142 mL of water changes in temperature from 55.39°C to 58.68°C. What is qrxn in (Assume…

A: qrxn = -(4.812 kJ/ degree Celsius) (1.85 degree Celsius) = - 8.90 KJ per. Q= transfer of energy in…

Q: Calculate the AE for a process in which a gas compresses from 5.0 L to 0.75 L at a constant pressure…

A: Pressure = 1.65 atm

Q: The specific heat of lead is 0.13 J/g °C. How much heat (in J) is required to raise the temperature…

A: Specific heat capacity of a substance is equal to the amount of heat energy is used to change the…

Q: Using the following reactions, calculate the heat of the first reaction. Note: all three enthalpies…

A: The enthalpy change is a state function and the Hess law states that the change of enthalpy in a…

Q: A metal sample weighing 126.00 grams and at a temperature of 96.8 degrees Celsius was placed in…

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

Q: A piece of metal weighing 80.10 g was heated to 99.3°C and then put into 41.55 g of water (initially…

A: Given: The mass of metal, (mm)=80.1 g. The mass of water, (mw)=41.55 g. The initial temperature of…

Q: 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…

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Q: A piece of metal weighing 83.60 g was heated to 99.6°C and then put into 41.90 g of water (initially…

A: Introduction: Specific heat: The quantity of heat required by a 1mole of substance to raise the…

Q: 17.3 g of an unknown metal cools from 42 \deg C to 23 \deg C and loses 223.5 J of heat. What is the…

A: The mass of the unknown metal =17.3 g The initial temperature = The final temperature = The heat…

Q: Calculate the amount of heat needed to boil 101. g of benzene (C6H6), beginning from a temperature…

A: The amount of heat required to raise the temperature is calculated using the following equation:mass…

Q: ,11) [References) Use the References to access important values if needed for this question. In the…

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Q: Be sure to answer all parts. Calculate the amount of heat (in kJ) required to heat 3.95 kg of water…

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Q: Assuming that Coca-Cola has the same specific heat as water [4.18 J/(g⋅∘C)], calculate the amount of…

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Q: The specific heat of toluene, C7H8, is 1.13 J/g-K. How many joules of heat are needed to raise the…

A: Given :-  Specific heat of toluene = 1.13 J/g.K  Mass of toluene = 40.0 g  Initial temperature =…

Q: 35 g of aluminum (specific heat 0.88 J/g °C) at 24 °C are placed in 180 mL (180 g) of coffee at 85…

A: Given :         Mass of Aluminium = 35 g          Specific heat = c = 0.88 J/g0C…