C (s) + 02 (g) → CO2 (g) AH° = -393.5 kJ Calculate the heat change if 2.54 g of C is reacted.

Q: Consider the chemical equation 2 A + 3 B ---> 4 C + D The reaction enthalpy is 705 kJ How many…

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Q: If the specific heat of iron is 0.449 Jg°C , how much iron is in your sample if 925 J were required…

A: Given, specific heat capacity of iron (CpIron) = 0.449 J/g°C  Amount energy required (Q) = 925 J…

Q: How much heat (in joules) is used to heat an 80.88-gram sample of iron from 3.59 °C to 100 °C if the…

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Q: The reaction of hydrogen and nitrogen gases produces 5.00 g of ammonia and releases 3250 cal of…

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Q: How much would the temperature of 295 g of water increase if 17.4 kJ of heat were added? (the…

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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: When 0.395 g of sodium metal is added to an excess of hydrochloric acid, 4110 J of heat are…

A: Given: Weight of sodium metal is 0.395 g Heat produced is 4110 J The given reaction is,…

Q: The complete combustion of a small wooden match produces approximately 512 cal of heat. How many…

A: Given, The approximate amount of heat produced by the combustion of a small wooden match = 512 cal…

Q: A work of 657 J is done on a system that releases 434 J of heat. What is the energy change in the…

A: According to first law of thermodynamics, internal energy of the system is equal to the sum of work…

Q: 4.33g sample of an unknown salt (MM=116.83g/mol) is dissolved in 150.00g water coffee cup…

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Q: How many grams of C,H, liquid must decompose according to the following chemical equation to…

A: Given :-  C6H6(l) ---> 3C2H2(g)  ΔH = 630 kJ To calculate :-  Amount of C6H6 that will be…

Q: From the given chemical equation, solve for the heat evolved (in kJ) when 78.96 g of carbon dioxide…

A: Number of mols = weight/ molecular weight

Q: How many grams of C6H6 must decompose according to the chemical equation to transfer heat 430 J of…

A: The decomposition reaction is, 1 mole of reactant is decomposing and transfers 630Kj of heat or (63…

Q: 2. What is the specific heat of a metal whose mass is 94.5 g and the temperature changes from 48 °C…

A: Consider the given information is as follows; Mass of the metal = 94.5 g Initial temperature T1…

Q: What is the kinetic energy in joules of a 1030-kg automobile traveling at 86 km/h?  What is the…

A: Kinetic energy of the moving particle depend on its mass and velocity .

Q: If the specific heat of water is 4.186 J/g °C, how much heat is required to increase the temperature…

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Q: A sample of iron absorbs 62.3 J of heat, upon which the temperature of the sample increases from…

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

Q: Chargers for cell phones get warm while they are being used. Some of the energy that they are using…

A: The total energy required to charge a cell phone is equal to the energy a cell phone battery needs…

Q: How many kilojoules of heat are absorbed when 40.7 g of MgO(s) is decomposed into Mg(s) and O2(g) a…

A: The reaction given is, => 2 Mg (s) + O2 (g) ------> 2 MgO (s)                          ΔH =…

Q: How many grams of C̟H, liquid must decompose according to the following chemical equation to…

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Q: How many joules of heat is needed to heat a 10g of aluminum foil from 55°C to 93°C if aluminum has a…

A: Specific heat is the amount of heat required for a unit mass of substance through a 1-degree…

Q: how many grams of iron

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Q: A 22.0 g block of copper at 45'C absorbs 2.50 kJ of heat. Given the specific heat of Cu is 0.385…

A: given :-  mass of Cu = 22.0 g  specific heat of Cu = 0.385 J/g°C  initial temperature = 45 °C  heat…

Q: When 47.9 J of heat is added to 13.8 g of a liquid, its temperature rises by 1.70 ∘C. What is the…

A: Given,Heat (Q) = 47.9 JMass (m) of liquid = 13.8 gRise in temperature (△T) = 1.70 oC

Q: If 801 J of heat is available, what is the mass in grams of iron (specific heat = 0.450 J/g•°C) that…

A: Given,  specific heat = 0.450 J/g.oC heat = 801 J , mass = ? , ∆T= 120°C - 22.5°C = 97.5°C

Q: If the specific heat of iron is 0.449 J g ° C , how much iron is in your sample if 925 J were…

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Q: What are the internal energy changes, ∆E, if a system; (a.) absorbs 67 J of heat and does 67 J…

A: Answer to all the parts are given below.

Q: If we add 30.0 J of heat to 10.0 grams of aluminum, by how much will its temperature increase? The…

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Q: what is the mass in grams of iron

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Q: Hydrogen sulfide is produced during the decomposition of organic matter. When 0.5380 mol H2S burns…

A: Given: H2S burns to produce SO2(g) and H2O(g) with heat release of -278.7 kJ

Q: What is the specific heat of aluminum if it takes 161 cal to raise the temperature of a 75 g…

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

Q: rogen sulfide, H2S, is produced during decomposition of organic matter. When 0.4190 mo H2S burns to…

A: Given, Heat released = -217.0 KJ

Q: What is the specific heat of solid iron when a 15.75 gram sample gains 1,086.75 Joules of heat…

A: The calorimetry method is used the find the total amount of heat transferred in a system. In this…

Q: How much thermal energy (in joules) is required to heat 18.1 g of a metal (specific heat = 0.397 J/g…

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Q: What is the heat, q, in joules transferred by a chemical reaction to the reservoir

A: Given :-  mass = 155 g  Initial temperature = 22.0°C  Final temperature = 26.5 °C  Specific heat…

Q: The specific heat of copper is 0.0920 cal/g °C, and the specific heat of silver is 0.0562 cal/g °C.…

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Q: 1. What is the specific heat of a 50- gram metal initially at 200C which heated to 900 C with 2330 J…

A: Given: Initial temperature of metal = 200 oC Final temperature of metal = 900 oC Mass of metal = 50…

Q: Enthalpy is the a. Heat of combustion at constant pressure b. Heat of formation at constant pressure…

A: Interpretation -  To determine the energy of a system at constant pressure, when enthalpy is the a.…

Q: 2A + 3B → C       ΔHrxn = -125 kJ  Determine the amount of heat emitted when each of the following…

A: The enthalpy of reaction is based on the molar quantities of reactants that is given by the…

Q: If 901 J of heat is available, what is the mass in grams of iron (specific heat = 0.45 J/g･°C) that…

A: Given data: Heat = 901 J Specific heat = 0.45 J/g.℃ Initial temperature = 22.5 ℃ Final temperature =…

Q: specific heat

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Q: During an experiment, a student calculated the heat of neutralization reaction to be - 52.8 kj/mol.…

A: Please find the attached images for the answer

Q: The specific heat of aluminum is .900J/g degree C, what is its molar specific heat?

A: The specific heat of aluminium=0.900 J/goC Mass of 1 mol of aluminium= 26.98 g Molar heat capacity…

Q: The specific heat of aluminum is 0.900 J/g°C. What is the heat capacity of 26 g aluminum?

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Q: If 801 J of heat is available, what is the mass in grams of iron (specific heat = 0.450 J/g °C) that…

A: For the first question simply it follows the  q= ms∆t equation.   For the second one it is the case…

Q: If 601 J of heat is available, what is the mass in grams of iron (specific heat = 0.450 J/g.°C) that…

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Q: A metal radiator is made from 26.0 kg of iron. The specific heat of iron is 0.449 J g-1 °C-!. How…

A: Given :  Mass of iron = 26.0 kg  Specific heat = 0.449 J.g-1.°C-1  Initial temperature = 25.0°C…

Q: When octane (C8H18, density = 0.699 g/mL) undergoes complete combustion, it provides energy…

A: Interpretation- To determine the amount of heat (in KJ)  produced by the amount of octane needed to…

Q: What mass of water will change its temperature by 10 °C when 975 J of heat is added? The specific…

A: Based on the information you've provided, we know the following variables: