Use the information provided to calculate the quantity of heat (in kJ) required to convert 73.4675 g of substance B from an initial temperature of 50.334ºC to a final temperature of 133.1ºC. Report

Q: What quantity of energy, in joules, is required to raise the temperature of 455 g of tin from room…

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Q: heat of fusion of pure silicon is 43.4 kJ/mol. How much energy in kJ would be needed to melt a…

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Q: Using 2 mols of ice, a student performed an experiment to determine the molar enthalpy of fusion for…

A: Given : moles of ice = 2 mol Accepted value of ΔHfus = 6.01 KJ/mol And % error = 4.5 %

Q: The heat of fusion of pure silicon is 43.4 kJ/mol. How much energy in kJ would be needed to melt a…

A: Amount of silicon present = 7.4 g The heat of fusion of pure silicon is 43.4 kJ/mol Atomic Mass of…

Q: Calculate the heat capacity, in joules per degree, of 28.4 g of water. Specific heat of water is…

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Q: Calculate the change in temperature of 10 kg of water released 232 kJ of heat

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Q: A man ate 0.50 pound of cheese (an energy intake of 4 × 103 kJ). Suppose that none of the energy was…

A: Given data, Energy = 4 × 103 kJ The enthalpy vaporization = 44.0 kJ The molar mass of water =…

Q: Calculate the enthalpy change of the following phase changes 1. melting of 14.5 g ice 2.…

A: 1) Melting of 14.5 g of ice.

Q: How much heat energy is lost when 8.00 moles of solid copper at an initial temperature of 300°C is…

A: The molar mass of copper is:- 64.546g/mol So the mass of 8moles of copper will be 516.368g.

Q: Calculate the heat released when 1.735 L O2 with a density of 1.11 g/L at 25°C reacts with an excess…

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Q: Why does water have a high specific heat index? It requires a great amount of energy for water to…

A: Ans As we all know the water can form strong hydrogen bonding  Hence, Water has a the higher…

Q: Ethanol, CHsOH, boils at 78.29 C. How much heat energy (in kilojoules) is required to heat 1.40 kg…

A: Total heat required for this phase change is the sum of change during these two process 1. Change…

Q: How much heat is required to convert 24.0 g of ethanol at 25 ∘C to the vapor phase at 78 ∘C?…

A: Given : Mass of ethanol = 24g Initial temperature = 25oC Final temperature = =78oC Heat of…

Q: If 14.5 kJ of heat were added to 485 g of liquid water, how much would its temperature increase?…

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Q: How much energy in kilojoules is required to convert 100mL of water at its boiling point from liquid…

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Q: Calculate the heat energy released when 14.6 g of liquid mercury at 25.00 °C is converted to solid…

A: Given, Mass of mercury = 14.6 g Initial temperature, Ti = 25.00 °C = (273.15 + 25) K = 298.15 K   To…

Q: 23.  Calculate the mass of water in grams that can be heated from 0 oC to 15 oC by the amount of…

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

Q: A substance with a molar mass of 187.63 g mol−1 has the following thermochemical properties: cliquid…

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Q: Use the information provided to calculate the quantity of heat (in kJ) required to convert 56.0735 g…

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

Q: For a 7.48 gram sample of water at 0.63°C , what is the minimum amount of heat (in kJ) needed to…

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Q: A pure sample of Substance S is put into an evacuated flask. The flask is then heated steadily and…

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Q: 54.73 g of water, H2O, 18.02 g/mol, was heated from -19.53 °C to 112.08 °C.  The freezing and…

A: Between the heating range of -19.53 to 112.08 degree all three states of water is present. At -19.53…

Q: 22) Evaporation of sweat requires energy and thus take excess heat away from the body. Some of the…

A: Two questions based on chemical thermodynamics, which are to be accomplished.

Q: Calculate the enthalpy change (in kilojoules <kJ>, NOT Joules) associated with the conversion…

A: Given,Mass of water = 18.6 grams.Temperature of water = -14.50C.Temperature of water vapor =…

Q: A sample of water at 15.6 °C required an input of 2.55 × 104 J of heat to reach its boiling point,…

A: We know that  q = m × C × (Tfinal - Tinitial ) Where q = heat input m = mass of reactant, water C =…

Q: Use the information provided to calculate the quantity of heat (in kJ) required to convert 70.912 g…

A: A compound will absorb energy to reach a high temperature, however, it will release energy to reach…

Q: A substance, X, has the following properties. (Size of mass is 250. g.) Specific Heat Capacities…

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Q: The specific heat of mercury is 0.140 J/g°C. Calculate the heat necessary to raise the temperature…

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Q: Ethanol, CHsOH, boils at 78.29°C. How much heat energy (in kilojoules) is required to heat 1.40 kg…

A: A numerical problem based on heat energy released, which is to be accomplished.

Q: If 10.7 kJ of heat were added to 468 g of liquid water at 30.°C, how much would its temperature…

A: Heat in kilojoules can be calculated using the specific heat capacity, temperature difference and…

Q: How much heat would need to be removed to cool 81.5 g of water from 25.6°C to -10.7°C?

A: Given that:  Mass of water (m) = 81.5 g  Initial temperature (T1) = 25.6°C Final temperature (T2) =…

Q: ou are tasked to determine the amount of energy required for a block of ice to become water vapor.…

A: The mechanisms of transformation between fundamental material states are the physical processes of…

Q: How much heat energy must be removed from 1.2 g of lead (specific heat = 0.128 J/g ºC) to cool it…

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Q: In the above image, you have a solid at less than 0 oC. As you add heat (Q), the temperature of the…

A: Answer : Yes ,  it is possible to have 0 oC water and 0 oC ice . Phase transformation takes place…

Q: How much heat would need to be removed to cool 192.7 g of water from 25.6°C to -10.7°C? Csolid =…

A: Heat released = 24.954 kJ

Q: How much heat is required to convert 135 g of ice at −15 °C into water vapor at 120 °C?

A: heat required is calculated by,q=m c ⊿Twhere,m=mass of samplec=specific heat of substance ⊿T=the…

Q: 1. Calculate the amount of heat energy associated with 125 g of ice at 0°C turning into water at…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: What change in energy is required to heat 55.00 g of water at 15.00 0C to vapor at 180.0 0C?

A: The quantity of heat transfers from one form to another is denoted as Q. Given the mass of…

Q: A 100 g sample of ice is heated from -15 oC to its melting point of 0 oC and then melted completely.…

A: First we will calculate moles of water using mass and molar mass  molar mass of H2O = 18.02 g/mol…

Q: 33.0 mL of water at 38.9 °C is heated to steam at 128.7 °C. Calculate the the total heat (in kJ)…

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Q: How much heat is required to convert 24.0 g of ethanol at − 146 ∘C to the vapor phase at 78 ∘C?…

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Q: How much energy is released when 75.3 g of water vapor at 115 °C condense and cool to liquid at 25.0…

A: Given that : Mass of water (m) = 75.3 g Initial temperature = 115°C Final temperature = 25.0 °C The…

Q: A 0.870-g piece of lithium metal is dropped into a mixture of 50.0 g water and 50.0 g ice, both at…

A: The moles of Li can be calculated as, mass of lithium, Li = 0.870 g Molar mass of Li= 6.941 g/mol…

Q: Calculate the enthalpy change of the following phase changes. 1. melting of 14.5 g ice 2.…

A: Standard enthalpy change value for phase change are ∆Hfusion=334 KJ/Kg∆Hvaporization=2260 KJ/Kg…

Q: For copper, with a Hfus of 209 J/g, how many kilojoules of energy will be absorbed or released when…

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Q: How much heat (in kJ) would need to be removed to cool 113.1 g of water from 25.60°C to -10.70°C?…

A: The intermediate steps to cool water from 25.60°C t -10.70°C is represented as:H2O (l, 25.60°C)→H2O…

Q: How much heat is absorbed by a 275-gram sample of water as it is heated from 25oC to its boiling…

A: The heat absorbed by a substance is dependent upon the nature of the material (specific heat…