In a large building, oil is used in a steam boiler heating system. The combustion of 1.0-lblb of oil provides 2.4×10^7J. How many kilograms of oil are needed to heat 120 kg of water from 23 ∘C to 100 ∘C? How many kilograms of oil are needed to change 120 kg of water to steam at 100 ∘C?

Q: On a 14 day wilderness expedition you'll need to heat 2.0kg of water to the boiling point each day.…

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Q: A 20.0 g block of iron (molar heat capacity 25.1 J/mol･°C) at 74.6 °C is placed into 200.0 g of…

A: Given data: For iron; m=20.0 g Molar heat capacity of iron, Cm,P = 25.1 J mol-1℃-1 Temperature, T1=…

Q: Al (s) + 3 HCI (/) → AICI3 (aq) + H2 (g) When 2.683 g of Al is combined with enough hydrochloric…

A: The volume of the solution=200.0 mL  Mass of solution = 200.0 g (density =1 g/mL) Mass of Al= 2.683…

Q: None

A: Step 1: Calculate the heat gained by the waterTemperature change of water (ΔT): 29.6 °C - 21.9 °C =…

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Q: If the heat capacity of the calorimeter, C (cal) is 29.4 J/ g℃, what is the correct sig fig answer…

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Q: Part A: Calculate the energy needed to heat the cube of silver, with a volume of 18.0 cm3 , from 17…

A: Part A:Determine the mass of cube of silver.The density of silver is 10.5 g/mL.

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A: For the given reaction, the heat lost by the dissociation of salt is equal to the heat gained by…

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A: The given balanced chemical equation                            C8H18(g)          +  12.5 O2 (g)…

Q: The major source of aluminum in the world is bauxite (mostly aluminum oxide). Its thermal…

A: Given reaction Al2O3(s) →∆2 Al(s)+ 32 O2 (g)            , ∆H= 1676 kJ Heat transfer = 1.000x103 KJ

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Q: 3. A 50.0mL sample of 0.600 M NaOH is mixed with 150.0 mL sample of 0.400 M HNO3 in a coffee cup…

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Q: A silver block, initially at 56.8∘C, is submerged into 100.0 g of water at 24.4∘C in an insulated…

A: Mass of water = 100 gSpecific heat capacity of water = 4.18 J/(g⋅∘C) Temperature change for water =…

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A: Firat we need to calculate the heat of reaction. Then we will calculate moles of each reactant and…

Q: An experiment is conducted where 1.00g of water has an initial temperature of 25°C. A metal has a…

A: To solve this problem we will use the formula  Q = m•c•∆T  Where, Q = heat absorbed or released  m =…

Q: A coffee cup calorimeter containing 200 g of water at 24°C had a 200 g sample of metal heated to…

A: When one hot and one cold element is mixed together then average temperature is reached .

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Q: heat of formation for a mole of nitrogen dioxide

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Q: A 2.4 kg aluminum engine block heats up to 131.8 °C. Engine coolant at 22.2 °C is added to prevent…

A: By help of Following formula, we can calculate the mass of coolant - M1 C1 ∆T1 = M2 C2 ∆T2 Here, M1…

Q: What mass of natural gas (CH4)(CH4) must you burn to emit 261 kJkJ of heat?…

A: Heat of Combustion: The heat of combustion (ΔHc0) is the energy released as heat when a compound…

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 1.33 kg sample…

A: Molar heat capacity = Amount of heat required to raise temprature by 1 degree  of one mol of a…

Q: At a festival, spherical balloons with a radius of 290. cm are to be inflated with hot air and…

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Q: Use constant-volume calorimetry to determine energy change. A 0.376-g sample of decanoic acid…

A: Given, The combustion reaction : C10H20O2(s) + 14O2(g) → 10 CO2(g) + 10 H2O(I)  mass of decanoic…

Q: A 20.0 g block of iron (molar heat capacity 25.1 J/mol･°C) at 97.6 °C is placed into 200.0 g of…

A: Specific heat capacity is the amount of heat required to increase the temperature of 1 gram mass of…

Q: A researcher studying the nutritional value of a new candy places a 5.00 g5.00 g sample of the candy…

A: Given: Temperature change = 2.95 ∘C = 2.95 K heat capacity of the calorimeter = 29.70 kJ⋅K−1 mass of…

Q: How much heat is required to warm 2.60 kg of sand from 19.0 °C to 100.0 °C? The specific heat…

A: Given, mass of sand (m) = 2.60 kg = 2.60 × 1000 g = 2600 g Initial temperature (Ti) = 19.0°C Final…

Q: When 60.0 mL of a 0.400 M solution of HNO3 (aq) is combined with 60.0 mL of a 0.400 M solution of…

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Q: Solid aluminum metal and gaseous oxygen combine in the reaction below to form aluminum oxide:…

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Q: In order to determine the heat capacity of their latest phone, CrabappleTM engineers cool the phone…

A: A material's heat capacity is termed as the quantity of heat needed by unit degrees of Celsius to…

Q: A cubic piece of platinum metal (specific heat capacity = 0.1256 J/°C･g) at 200.0°C is dropped into…

A: Given: Specific heat capacity of platinum     = 0.1256 J/ oC.g Temperature of platinum…

Q: Calculate the Δ Δ H° (kJ) for the following reaction: CaC2 (s) + 2 H2O (l) → Ca(OH)2 (aq) + C2H2 (g)…

A: Using given data enthalpy change is determine as

Q: Enter your answer in the provided box. A 24.1-g sample of an alloy at 93.00°C is placed into 50.0 g…

A: Given data,  Mass of a sample of an alloy = 24.1 g  Initial temperature of alloy = 93.00°C  Mass of…

Q: A 32.6 g iron rod, initially at 22.7°C, is submerged into an unknown mass of water at 63.3 °C, in an…

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Q: A 281 g silver figure of a polar bear is dropped into the 209 g aluminum cup of a well‑insulated…

A: 1) Mass of the silver figure of a polar bear is (Ms)= 281 g 2) Mass of Aluminium is (Ma) =209 g 3)…

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Q: A researcher studying the nutritional value of a new candy places a 4.70 g4.70 g sample of the candy…

A: Given : Mass of candy used = 4.70 g Increase in temperature of the calorimeter = 2.45 oC And heat…

Q: At a festival, spherical balloons with a radius of 290. cm are to be inflated with hot air and…

A: Specific heat capacity of the substance indicates the how much of heat is required to increase the…