The following thermochemical equation is for the reaction of iron(s) with hydrochloric acid(aq) to form iron(II) chloride(s) and hydrogen(g). Fe(s) + 2HCl(aq) FeCl2(s) + H2(g)     H = -7.40 kJ When 17.9 grams of iron(s) react with excess hydrochloric acid(aq),  kJ of energy are _________evolvedabsorbed

Q: The balanced combustion reaction for C6H6C6H6 is 2C6H6(l)+15O2(g)⟶12CO2(g)+6H2O(l)+6542 kJ If 8.300…

A: Given information:Mass of benzene (C6H6) = 8.300 gMass of water = 5691 gInitial temperature = 21…

Q: Consider the following thermochemical reaction: 6 HCl(g) + 2 BCl3(g)-->B2H6(g) + 6Cl2(g) ΔHrxn =…

A: Given :-  6 HCl(g) + 2 BCl3(g)-->B2H6(g) + 6Cl2(g) ΔHrxn = +755.4 kJ  To calculate :-  mass of…

Q: The following thermochemical equation is for the reaction of water(l) to form hydrogen(g) and…

A: The given reaction is, 2H2O(l) ---> O2(g) + 2H2(g) ........∆H = 572 kJ 572 kJ energy provided for…

Q: 3. When 0.050 mol of HCl is reactd with 0.050 mol of NaOH in 50.0 mL of water, the temperature of…

A: The heat of a system can be given as :

Q: Hot packs can be made from calcium chloride by mixing/reacting it with water (reaction shown below).…

A: A numerical problem based on enthalpy change of reaction, which is to be accomplished.

Q: (Q11) Ammonia reacts with oxygen according to the following balanced chemical equation 4 NH3 (g) + 5…

A: Heat can be calculated by using unitary method.

Q: Two gaseous pollutants that form in auto exhaust are CO and NO.  An environmental chemist is…

A: Answer: CO (g)  +  NO (g) →→ CO2 (g) +  ½N2 (g) for this reaction ∆H = 373.3 kJ.

Q: 1. A gas is confined to a cylinder under constant atmospheric pressure. When 0.49 KJ of heat is…

A: Heat Heat is the result of the movement of kinetic energy within a material or an item, or from an…

Q: 28.0g of a substance with a molecular weight of 52.0 g/mol is placed in a bomb2 calorimeter with a…

A:

Q: When methanol, CH3OH, is burned in the presence of oxygen gas, O2, a large amount of heat energy is…

A: Methanol, CH3OH, is burned in the presence of oxygen gas, O2, a large amount of heat energy is…

Q: When sulfuric acid dissolves in water, a great deal if heat is given off. The enthalpy change for…

A:

Q: I need help with calculating the net change of enthalpy heat. The question is as follows,  Nitric…

A: Note: In the first step two moles ammonia (NH3) is formed Given reactions are shown below,…

Q: In the following experiment, a coffee-cup calorimeter containing 100 mL of H2 0 is used. The initial…

A:

Q: Consider a neutralization reaction in which NaOH(aq) is mixed with H2SO4(aq) in a coffee cup…

A: Given is coffee cup calorimeter,  Mass m = 159.0 g ΔT = 7.70 °C   We need to find heat of…

Q: When 129.0 g of 0.200 M NaCl(aq) at 22.0 °C is added to 212.0 g of 0.100 M AgNO3(aq) at 22.0 °C in a…

A: Answer is explained below.  Given that, mass of NaCl = 129.0 g and mass of AgNO3 = 212.0 g.  Due to…

Q: The propane fuel (C3H8) used in gas barbeques burns according to the thermochemical equation:…

A:

Q: The change in the internal energy of a system (ΔE) is -74 J. What is the work done when the system…

A: We have to calculate the work done.

Q: The propane fuel (C3H8) used in gas barbeques burns accordingto a thermochemical equation:C3H8(g) +…

A: The reaction is carried out in more than one step then the sum of all the steps gives the overall…

Q: When 4 moles of NH3(g) react with O₂(g) to form NO(g) and H₂O(g) according to the following…

A: Given reaction: 4NH3(g) + 5O2(g) → 4NO(g) + 6H2O(g) The amount of energy evolved = 905 kJ We have to…

Q: A 7.78 g sample of methanol was combusted in a bomb calorimeter. The temperature of the calorimeter…

A: In order to find molar enthalpy in kJ/mol, we have to find heat absorbed/received by calorimeter in…

Q: When 50.0 g of 0.200 M NaCl(ag) at 24.1 °C is added to 100.0 g of 0.100 M A9NO3(aq) at 24.1 °C in a…

A: Given: 0.200 M NaCl         mass  of NaCl =50. 0 gram         specific heat = 4.20 J/g C   find:…

Q: When methanol, CH, OH, is burned in the presence of oxygen gas, O,, a large amount of heat energy is…

A:

Q: When ammonia (NH3) and oxygen react at a temperature at which both compounds are in the gaseous…

A: When balanced reactions are represented including phases of all species as well as energy change,…

Q: The AH for the solution process when solid sodium hydroxide dissolves in water is 44.4 kJ/mol. When…

A: Given that : ∆Hsolution=44.4 kJ/molThe mass of NaOH=10.9 gThe mass of water=253 gInitial…

Q: A cylinder contains a mixture of gases under constant atmospheric pressure. The gases undergo a…

A: The thermodynamics is the branch of science which deals with the heat and other forms of energy.…

Q: When methanol, CH,OH, is burned in the presence of oxygen gas, O,, a large amount of heat energy is…

A: We have to calculate the amount of heat released and limiting reactant.

Q: The standard enthalpy of formation of hydrogen chloride gas, HCI(g) is -92.31 kJ/mol. Write the…

A: The objective of the question is to write the thermochemical equation to represent formation of…

Q: 1. How many KJ are used by a 154lb adult while sleeping for one hour? 2. In the specific heat…

A:

Q: The following thermochemical equation is for the reaction of  iron(III) oxide(s) with hydrogen(g) to…

A: The balanced reaction taking place is given as, => Fe2O3 (s) + 3 H2 (g) -------> 2 Fe(s) + 3…

Q: Propane, C3H8 (approximate molar mass = 44 g/mol) is used in gas barbeques and burns according to…

A: Given: Combustion reaction of propane (C3H8) as follows: C3H8 (g) + 5 O2 (g) → 3CO2 (g) + 4H2O (g)…

Q: Methane burns with oxygen to produce carbon dioxide and water as a gas. The balanced thermochemical…

A:

Q: The thermite reaction in which aluminum metal reacts with iron(III) oxide to produce a spectacular…

A: The reaction is as follows: 2Al(s)+Fe2O3(s)--------->Al2O3(s)+2Fe(l).          ΔH =  -202.9 kcal.…

Q: The heat of combustion of octane, C8H18 , can be measured in a way similar to the method you used to…

A: Heat capacity is given by,

Q: Hydrogen cyanide is used in the manufacture of clear plastics such as Plexiglas. It is prepared from…

A: In this question, we will determine the value of heat ( q ) in kJ unit.  You can see step by step…

Q: The following thermochemical equation is for the reaction of sodium(s) with water(l) to form sodium…

A: The balanced reaction taking place is given as, => 2 Na (s) + 2 H2O (l) --------> 2 NaOH (aq)…

Q: Q9 a)The following thermochemical equation is for the reaction of hydrogen bromide(g) to form…

A:

Q: When methanol, CH3OH, is burned in the presence of oxygen gas, O2, a large amount of heat energy is…

A: Given reaction:

Q: & How much work is done by or on the system (state which), in kcal, in a reaction if the internal…

A: Given: Mass of water = 185 g. Initial temperature of water = 20.0 oC Final temperature of water =…

Q: Methanol is used to heat food. The combustion of methanol can be described by the following…

A:

Q: The following thermochemical equation is for the reaction of hydrogen chloride(g) with ammonia(g) to…

A: One mole of HCl reacts with one mole of ammonia to form one mole of ammonium chloride. In this…

Q: Please help me, double and triple check your answers previous tutors got it wrong,

A: Given data, 1 mole propane burned to obtained 350kJ of heat

Q: What is the thermochemical equation. Formation of carbon dioxide gas from carbon (graphite) and…

A: The balanced chemical equation with the description of physical states and the amount of energy…

Q: Two gaseous pollutants that form in auto exhaust are CO and NO.  An environmental chemist is…

A: Given,   1. COg+12O2g→CO2g    ∆H1=-283.0 KJ   2. N2g+O2g→2NOg         ∆H2=180.6 KJ

Q: When methanol, CH3OH,CH3OH, is burned in the presence of oxygen gas, O2,O2, a large amount of heat…

A: Given: mass of methanol =22.9 g           mass of oxygen = 35.6 g To find: the Amount of heat…

Q: value of ΔE for the combustion of propane, C3H8 is -185.81 KJ. What is the heat formation of C3H8?

A: Heat of reaction is difference of energy of product  and energy of Reactant. If heat of reaction is…

Q: Methanol (CH3OH), which is used as a cooking fuel, burns in oxygen to produce carbon dioxide and…

A:

Q: When methanol, CH3OH,CH3OH, is burned in the presence of oxygen gas, O2,O2, a large amount of heat…

A: The combustion of methanol is given below.

Q: A cylinder contains a mixture of gases under constant atmospheric pressure. The gases undergo a…

A: When heat is absorbed by the system, q is ‘+’. When heat is released, q is ‘-’. When work is done on…

Q: Titanium(IV) oxide has a wide range of applications in industrial and consumer products, such as…

A: Endothermic Reaction Exothermic Reaction The energy is absorbed from the surrounding into the…

Q: When 25.0 g hydrogen gas react according to the following reaction, how many kJ of heat are released…

A: In this question, we have to find out the correct answer of given problem by the help of the…