A sample of lead is heated to 189.4oC.  It is then placed in a cup containing 32.8 g water at 24.3oC.  The final temperature of the water and lead is 29.6oC.  Calculate the mass of the sample of lead.  The specific heat of water is 4.184 J/goC and the specific heat of lead is 0.130 J/goC.

Q: A 1.00kg piece of metal at 52.0C is placed into 100. g of water at 10.0C. The final temperature of…

A: A 1.00 kg piece of metal at 52.0°C is placed into 100. g of water at 10.0C. The final temperature of…

Q: Consider samples of water and of ethanol that have equal masses.  Which statement correctly…

A: Heat capacity is amount of heat require to raise the temperature of substance by one degree Celsius.

Q: A 104 g copper sample (specific heat=0.385 J/g°C) at 100°C is added to 48 g water at 29.5°C. What is…

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Q: Which substance would require more heat energy to warm at the given conditions: At temperature 22oC…

A: 1) At temperature 22oC to 85oC, 50.0 g of water, or 100 g ethylene glycol (specific heat 2.42 J/g oC…

Q: A 45.90 g sample of pure copper is heated in a test tube to 99.40°C. The copper sample is then…

A: We have 45.9 g of Cu metal at 99.4°C, also, 61.04 g of water , temperature of calorimeter…

Q: A 8.22-g sample of solid calcium reacted in excess fluorine gas to give a 16g sample of pure solid…

A: The formula for the enthalpy formation is followign bellow:

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: A metal object with mass of 21.6 g is heated to 97.0 °C and then transferred to an insulated…

A:

Q: A 1.69 gram sample is heated to an initial temperature of 75 oC. The sample is then placed in a…

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Q: The specific heat capacities of copper, gold, and cobalt are given. Based on this information, which…

A: Specific heat capacity means the amount of heat required to raise the temperature of 1 gram of a…

Q: If the same amount of heat were added to individual 1.0 g sample of water, methanol, and aluminum,…

A: NOTE: It will be the greatest temperature change in the question and not the energy change because…

Q: Calculate the mass of gold that absorbs 46.3 J of energy when heated from 25 to 74 oC. Specific…

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Q: If a 125 g sample of iron is heated to 250.0oC and then placed in 500.0 g of water at 25.0 oC in an…

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Q: If 46.1 g of copper at 11.6 °C is placed in 85.0 g of water at 72.4 °C, what is the final…

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Q: A metal object with mass of 29.0 g is heated to 97.0 °C and then transferred to an insulated…

A: Since the heat lost by metal + heat gain by water should be = 0 as no heat is lost in surroundings…

Q: A sample of 24.9 g of ammonium nitrate, NH4N03, was dissolved in 121.3g of water in a coffee cup…

A: Mass of sample (ammonium nitrate) = 24.9 gram Mass of water = 121.3 gram Specific heat of solution =…

Q: The specific heat capacity of a pure substance can be found by dividing the heat needed to change…

A: Given - Heat capacity of the substance = 4.78Jg.°C            Mass of the substance = 189 g…

Q: Solid magnesium has a specific heat of 1.01 J/goC. How much heat is given off by a 20.0 gram sample…

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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: 123 g of water is placed in an insulated cup. It’s initial temperature is 25.6°C. A 587.0 g Sample…

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Q: An ideal gas ina cylinder fitted with a piston expands at constant temperature from a pressure of 6…

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Q: How much energy is needed to raise the temperature of 325g of water by 10.0 degrees? The specific…

A: Given  Mass of water = 325 g = m  Specific Heat of water = 4.184 J/g°C ∆T = 10 °C

Q: A sample of 23.9g of ammonium nitrate, NH&NO3. was dissolved in 133.8 g of water in a coffee cup…

A: Given Mass of NH4NO3 =m = 23.9 gMass of water = Mw = 133.8 gInitialTemperature = T1 = 28.1°CFinal…

Q: A 19.85 g sample of an unknown substance is heated from 25°C to 125°C using 1750 J of heat. What is…

A: The specific heat required to raise the temperature of a substance is given as:

Q: The specific heat capacity of iron is 0.461 J/g*K and 0.544 J/g*K for titanium. A sample consisting…

A: Given:The specific heat capacity of iron is 0.461 J/g*KThe specific heat capacity of titanium is…

Q: A sample of gold weighing 7.7 grams is cooled then placed in a calorimeter containing 27.01 grams of…

A:

Q: A 20.8 g piece of metal has a specific heat of 0.52 J/g°C. It was heated to 99.5°C then placed…

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Q: A metal object with mass of 20.5 g is heated to and then transferred to an insulated container…

A: when we mix to object then it grow from high temperature too low temperature . so apply principle of…

Q: A sample of silver metal is heated to 100.1 °C in a hot water bath until thermal equilibrium is…

A: Given that: mass of water = 52.483 g initial temperature of metal  = 100.1 °C final temperature of…

Q: A piece of unknown metal with a mass of 15.24 g is heated in boiling water to 96.17°C and then…

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Q: What is the heat of solution for compound X

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Q: Tin is widely used for plating steel cans used as food containers, in metals used for bearings, and…

A: Specific heat of a material is the amount of energy we must provide to increase it temperature by 1…

Q: A piece of iron (mass = 25.0 g) at 368 K is placed in a styrofoam coffee cup containing 25.0 ml of…

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Q: 1.3. A copper cylinder has a mass of 65.5 g and a specific heat of 0.092 cal/g.°C. It is heated to…

A: Answer 1.3 mass of copper cylinder = 65.5 g specific heat of copper cylinder = 0.092 cal/g.0C…

Q: Thirty grams of silicon at 80.0°C is added to 70.0mL of water at 20.0°C. Calculate the final…

A: Given: The mass of silicon = 30 g The initial temperature of silicon = 80.0 °C The volume of water =…

Q: A chemist dissolved an 10.8-g sample of KOH in 100.0 grams of water in a coffee cup calorimeter.…

A: Here we are required to find the enthalpy of solution of KOH in the unit of kJ/mol

Q: what pure metal is the ring composed?

A: Mass of metal (m) = 14.8 g Initial Temperature(T1) = 23.2 °c Final Temperature (T2) = 55.8 °c Heat…

Q: For the following processes, calculate the change in internal energy of the system and determine…

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Q: Ices] A 21.0 g sample of pure iron at 85 °C is dropped into 66 g of water at 20. °C. What is the…

A: The given problem can be solved by using the formula given below as; mironCiron∆T = mwaterCwater∆T…

Q: A new substance evolves (-1.64) kJ of heat when 17.15 g it cools from 106.2oC to 23.8oC. What is the…

A: Given :-  Heat (q) = -1.64 kJ  mass of substance = 17.15 g  Initial temperature = 106.2 °C  Final…

Q: A fuel was used to heat water in a calorimetry experiment. When butane was burnt, 96070.0 J of heat…

A: Ans is given below

Q: A 100.0 g sample of copper is heated to 86.1 oC then allowed to cool. What is the final temperature…

A: Note : Since you have posted multiple questions, we are entitled to answer the first only. Please…

Q: 25.0

A: We will use heat energy formula

Q: [11] A 10.00 g sample of a metal alloy was heated to 88.99 °C. It is then quickly dropped into 40.0…

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Q: When a 43.0 g sample of metal at 100.0 °C is added to 38.0 g of water at 23.72 °C, the final…

A: The amount of heat energy  is related to specific heat capacity as,…

Q: A 50.0-g sample of water at 100.00°C was placed in an insulated cup. Then 25.3-g of zinc at 25.00°C…

A: We are given sample of water mw=50.0 gm initial temperatureTwi=100°C final temperature of…

Q: 8. The heat of neutralization of sulphuric acid by sodium hydroxide is -55.84 kJ/mole of water…

A: Answer is explained below.

Q: A 55 kg block of metal has an original temperature of 15.0°C and 0.45 J/g°C. What will be the final…

A: m = 55 kg = 55000 g  Ti = 15°C  c = 0.45 J/g.°C q = 450 J  Tf = ?

Q: 30.0 g of a substance (molar mass: 46 g/mol) required 262 J of heat to raise its temperature from…

A:

Q: As a lab experiment, a 10.0 g sample of iron metal, specific heat = 0.444 J/ g*oC, is heated from…

A: Mass of Fe = 10.0 g Mass of water = 50 g Initial temperature of Fe = 1600 °C Initial temperature of…