A 125-g block of unknown substance with a temperature of 90 C is placed in a Styrofoam cup containing 0.326 kg water at 20 C. The system reaches an equilibrium temperature of 22.4 C. What is the specific heat of the unknown substance if the heat capacity of the cup is neglected? c of water = 4186 J/kg C

Q: A 25.0 g block of copper (specific heat capacity 0.380 J/g･°C) at 81.2 °C is placed into 500.0 g of…

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Q: A 25.0 g block of copper (specific heat capacity 0.380 J/g-°C) at 88.0 °C is placed into 500.0 g of…

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Q: When a solid dissolves in water, heat may be evolved or absorbed. The heat of dissolution…

A: enthalpy of dissolution, ∆Hdissolution = mass (m) ×specific heat capacity(s) ×temperature change…

Q: Iron has a specific heat capacity of 0.45 J/g C. If a piece of iron at 95 C is added to 175 g of…

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Q: When 1.81 g of zinc metal reacts with 100.00 g of 1.00M HCl in a coffee-cup calorimeter, the…

A: Zinc metal reacts with Concentrated HCl is an exothermic reaction(heat produced) thus temperature…

Q: When a 4.25-g sample of solid sodium nitrate dissolves in 50.0 g of water in a coffee-cup…

A: The mass of sodium nitrate is = 4.25 g The mass of water is = 50.0 g The mass of solution is =…

Q: A metal object with a mass of 19.2 g is heated to 96 °C and then transferred to a calorimeter…

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Q: A small statue, made of an unknown metal, weighs 700 g. This statue at room temperature (27.00° C)…

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Q: A 237-g piece of aluminum, initially at 100.0 °C, is dropped into 244 g of water at 10.0 °C. When…

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Q: Constant-pressure calorimeters can be calibrated by electrical heating. When a calorimeter…

A: #Part-1: Given the total heat supplied to the calorimeter, Q = 3310 J Increase in temperature, ∆T =…

Q: A piece of iran, which has a specific heat capacity of 0.452 J-g1. C, with a mass of 54.3218 g is…

A: Specific heat capacity of iron (C) = 0.452 J.g-1 oC-1                          Mass of iron (m) =…

Q: A 25.0 g block of copper (specific heat capacity 0.380 J/g･°C) at 47.2 °C is placed into 500.0 g of…

A: We have to calculate the temperature change for the Copper block.

Q: A coffee-cup calorimeter contains 50.0 g of water at 60.51°C. A 12.4 g piece of graphite at 24.21°C…

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Q: 1. When a 6.50 g sample of solid sodium hydroxide dissolves in 100.0 g of water in a coffee- cup…

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Q: 12. A 44.0 g sample of unknown metal at 99.0 °C was placed in a constant-pressure calorimeter, with…

A: The formula for specific heat can be written below in which q represents the heat energy in Joules,…

Q: 9. To 100.0 g water at 25.00°C in a well-insulated container is added a block of aluminum initially…

A: The amount of heat absorbed (or released) by fixed amount of a substance to change its temperature…

Q: How many milliliters of water at 23 °C with a density of 1.00 g/mL must be mixed with 180 mL (about…

A: The heat transferred by a substance is determined as the equation:

Q: 2. An aluminum container with specific heat capacity of 0.880 J/g"C contains waxwith specific heat…

A: Please find the attached images for the answer I am giving the answer for question number 2 only.

Q: A  296.0 g piece of granite, heated to  601.0°C in a campfire, is dropped into  1.15 L water (d =…

A: Mass of granite piece=296.0 g  The volume of water=1.15 L=1150 mL The density of water, d = 1.00…

Q: 1. What mass of methane (CH4) must be burned to release 185 kJ of heat?        CH4(g) + 2O2(g)…

A: Molar mass of CH4 = 1 * atomic mass of C + 4 * atomic mass of H = (1 * 12 + 4 * 1) g/mole = 16…

Q: A 25.0 g block of copper (specific heat capacity 0.380 J/g·°C) at 88.0 °C is placed into 500.0 g of…

A: Given that,weight of Cu =m1=25gSpecific heat capacity of Cu=S1=0.380J/g°cInitial temerature of…

Q: When a solid dissolves in water, heat may be evolved or absorbed. The heat of dissolution…

A: Heat of dissolution :-          The enthalpy of solution, enthalpy of dissolution, heat of…

Q: A 65.78 g piece of iron heated at 100.43 °C is placed in a coffee cup calorimeter contains 151.82 g…

A: heat lost by iron = ?

Q: When a solid dissolves in water, heat may be evolved or absorbed. The heat of dissolution…

A: Mass of CaCl2 dissolved = 2.02 gmass of water = 114 g = MInitial temperature of water = 23.70°CFinal…

Q: 5.04 x 10-3 mole of a compound is added to 41.0 g of water in a styrofoam cup and stirred until it…

A: Given,Mass of water = 41.0g.Temperature change = 23.4600C – 23.4200C…

Q: a calorimetry experiment, a 22.5 gram metal object was heated to 64.23oC. It was placed into a…

A: Mass of metal = 22.5 g Temperature(T1) = 64.23 °c Mass of water = 30.0 g Temperature = 23.98 °c…

Q: A calorimeter contained 83.0 g of water at 15.43°C. A 165-g sample of iron at 64.80°C was placed in…

A: Heat Capacity (C) is the amount of Heat required to increase the temperature of 1 gram mass of…

Q: A 24.0 g sample of granite at 100.0 °C was added to 100.0 g of water at 25 °C, and the temperature…

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Q: A 2.5 g sample of NH4NO3 is dissolved in 135 g of water in a Styrofoam cup, changing the temperature…

A: Data given: Mass of NH4NO3 dissolved = 2.5 g Mass of water = 135 g Initial temperature, T1 = 25.1 °C…

Q: 220 g quantity of a certain metal is heated to 100.0 °C. The metal was immediately immersed into 258…

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

Q: 13. In an experiment, 30.0 g of metal was heated to 98.0°C and then quickly transferred to 50.0 g of…

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Q: A 25.0 g block of copper (specific heat capacity 0.380 J/g･°C) at 36.2 °C is placed into 500.0 g of…

A: We will calculate change in temperature in copper block using: Heat lost by copper block= hear…

Q: A piece of aluminum (which has a specific capacity of 0.891 J/"C-g} is heated to 82.4°C and dropped…

A: It is given that aluminium has an initial temperature of 82.4°C and is dropped in 76.1 g of water…

Q: A coffee cup calorimeter contains 156.02 g of water at 22.50 °C. A 65.468 g piece of iron is heated…

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Q: A 432.00 sample of an unknown metal at 101.93°C is placed in a calorimeter containing 131.00 mL of…

A: Solution :    The specific heat capacity is defined as the amount of heat required to change the…

Q: 5.037g piece of iron is heated to 100°c and placed in a coffee cup calorimeter that initially…

A: As we know, Heat(q) = ms.□T where, m = mass of substance   s = specific heat capacity  □T =…

Q: A 1.00-g sample of hexane, C6H14, undergoes complete combustion with excess O2 in  a bomb…

A: Answer: Bomb calorimeter is a constant volume calorimeter, therefore enthalpy change calculated in…

Q: A 3.01 kg aluminum engine block heats up to 129.6 °C. Engine coolant at 21.1 °C is added to prevent…

A: Given data,Mass of Al engine(mAl)=3.01Kg=3010gInitial temperature of Al engine(TAl)=129.6oCInitial…

Q: A 328.00 sample of an unknown metal at 87.78°C is placed in a calorimeter containing 136.00 mL of…

A: The principle of the calorimeter is the heat energy transferred between the water in the calorimeter…

Q: When 1.81 g of zinc metal reacts with 100.00 g of 1.00 M HCl in a coffee-cup calorimeter, the…

A: Given: mass of zinc = 1.81 g mass of HCl = 100.00 g Initial temperature = 20.8 oC Final temperature…

Q: periment, a 1.0150 g sample of L-asorbic acid is burned completely in a bomb calorimeter. The…

A: the heat absorbed or released by a substance is guided by the heat capacity.q=mcTf-Tim is mass of…

Q: A 4.1-g sample of Colorado oil shale is burned in a bomb calorimeter, which causes the temperature…

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Q: A cup contains 195 g195 g of coffee at 99.3 °C99.3 °C. Suppose 63.4 g63.4 g of ice is added to the…

A: Given data mass of coffee = 195 g initial temperature of coffee = 99.3 oC mass of ice added = 63.4 g…

Q: A 3.59°C increase in temperature occurs when a 0.232 g sample of benzoic acid (C7H6O2) is combusted…

A: Heat of combustion if benzoic acid = -26.37 KJ/mol Mass of benzoic acid = 0.232 g Heat releases =…

Q: 3. A piece of metal of mass 20.0 g at 100.0°C is placed in a Styrofoam cup calorimeter containing…

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Q: When a solid dissolves in water, heat may be evolved or absorbed. The heat of dissolution…

A:

Q: A coffee-cup calorimeter contains 30 mL of water with an initial temperature of 24.8°C. An unknown…

A:

Q: A 432.00 sample of an unknown metal at 101.93°C is placed in a calorimeter containing 131.00 ml of…

A: Mass of water can be calculated using the density formula: Density=MassVolume Mass=1.00 g/mL×131.0…

Q: When a solid dissolves in water, heat may be evolved or absorbed. The heat of dissolution…

A: The heat of dissolution of MgCl2=heat absorbed by calorimeter+Heat absorbed by the solution.…

Q: A student is attempting to determine the heat capacity of a Styrofoam cup calorimeter by pouring hot…

A: Given: Cold Water : Mass = 21.2455 g                       Initial Temperature = 20.36oC…