Question: The enthalpies of formation of ammonia, hydrogen chloride, ammonium chloride and for sodium acetate (CH:COONA) are-46.1 kJ mol',-92.3 kJ mol',-14.4 kJ mol' and -709 kJmol' respectively. Write the thermochemical equation for the formation of each of the above substances.

Question: The enthalpies of formation of ammonia, hydrogen chloride, ammonium chloride and for sodium acetate (CH:COONA) are-46.1 kJ mol',-92.3 kJ mol',-14.4 kJ mol' and -709 kJmol' respectively. Write the thermochemical equation for the formation of each of the above substances.

Chemistry: Principles and Reactions

8th Edition

ISBN:9781305079373

Author:William L. Masterton, Cecile N. Hurley

Publisher:William L. Masterton, Cecile N. Hurley

Chapter8: Thermochemistry

Section: Chapter Questions

Problem 49QAP: Chlorine trifluoride is a toxic, intensely reactive gas. It was used in World War II to make...

See similar textbooks

Related questions

Q: Question: The enthalpies of formation of ammonia, hydrogen chloride, ammonium chloride and for…

A: Enthalpy of formation (∆Hf ) is the amount of energy required to form 1 mole of substance when all…

Q: Perform the following heat calculation. show all work and include units on answer How many…

A: The answer to the following question is given as -

Q: Suppose that the molar enthalpy of a reaction is -73.45 kJ/mol and 4.222 moles are reacted. How many…

Q: What happens to the value of AH for a thermochemical reacti reaction is reversed? *

A: Heat of a reaction : Heat energy change measured at constant temperature and pressure is called…

Q: Given the following information, what is the AH°F (heat of formation) for Cu2S(s)? Thermochemical…

Q: QUESTION 4 The enthalpy of reaction is the sum of the the total of standard molar enthalpy of…

A: In this question, we will see the statement is correct or not and also discussed on this statement.…

Q: Which of the following thermochemical equations can have AHf° for the heat of the reaction?

A: Standard enthalpy of formation or standard heat of formation of a compound is change of enthalpy for…

Q: The following thermochemical equation is for the reaction of Fe3O4(s) with hydrogen(g) to form…

A: The enthalpy of reaction is 151 KJ per mole of Fe3O4. The value of the enthalpy of the reaction is…

Q: Match each of the following with its correct answer In the following thermochemical equation:…

A: Since you have posted multiple question will solve the first question for you to get the remaining…

Q: a. State the meaning of the following thermochemical equation *b.Calculate the amount of heat…

Q: A 7.37 g piece of tungsten is placed into a boiling water bath until it is at thermal equilibrium.…

A: A numerical problem based on chemical thermodynamics that is to be accomplished.

Q: When 1 mol of KBr(s) decomposes to its elements, 394 kJ of heat is absorbed. (a) Write a balanced…

A: Given When 1 mole of KBr(s) decomposes to its elements (K and Br) , 394 kJ of heat is absorbed.

Q: Use the References to access important values if needed for this question. The following…

A: Iron (III) oxide reacts with hydrogen to form iron metal and water. The equation for the balanced…

Q: Suppose that the molar enthalpy of a reaction is -19.95 kJ/mol and 0.33 moles are reacted. How many…

Q: The following thermochemical equation is for the reaction of Fe3O4(s) with hydrogen(g) to form…

Q: Question: When 2.26 g of a salt dissolves in 121 mL of water (density = 1.00 g/mL) in a coffee-cup…

A: Given that : The mass of salt (ms)= 2.26 g The volume of water = 121 mL The density of water = 1.00…

Q: [References] Use the References to access important values if needed for this question. The…

Q: The combustion of methane gas with oxygen is represented in the unbalanced diagram below. What would…

A: For the reaction CH4 (g) + O2 (g) ------> CO2 (g) + H2O (g) ΔH = -890 kJ The above…

Q: An ionic solid is dissolved in a beaker of water at room temperature. After the crystals have…

A: The process in which heat is absorbed is known as endothermic process.In this type of…

Q: Given the following reaction: 2 N2H4(g) + N2O4 → 3 N2(g) + 4 H2(g) ∆H = -1049 kJ mol-1 (a) Write…

A: Given: Reaction To find: a) Thermochemical equation for 1 mol b) Thermochemical equation for reverse…

Q: Suppose that the molar enthalpy of a reaction is -40.95 kJ/mol and 3.144 moles are reacted. How many…

A: The energy released or absorbed per mole of solute dissolved in a solvent is known as molar heat of…

Q: complete combustion of ethanol, C2H5OH(l), to form H2O(g) and CO2(g) at constant pressure releases…

A: The quantity of heat absorbed or released by a chemical reaction is known as enthalpy of a reaction.…

Q: Which of the following has a standard enthalpy of formation of zero? a. H2(g) b. H2(s) c. H(g) d.…

A: To find: The substances having zero standard enthalpy of formation a. H2(g) b. H2(s) c. H(g) d.…

Q: Which of the following best explains why standard enthalpies of formation of compounds at 25 oC may…

A: Enthalpy of formation for a compound is defined as the enthalpy required to form a compound from its…

Q: Given the following thermochemical equation: 20,H18(0) + 25 0,(g) + 18 Н,Ор 2(9) 16CO. AH° = -11020…

A: Solving only first question in accordance with…

Q: How much heat, in kilojoules, is released when 12.4 g H2(g) reacts with plenty of O2(g) to…

A: Given thermochemical equation is 2 H2 (g) + O2 (g) --> 2 H2O (g)…

Q: Given that CaO(s) +H2O(l) -CalOH>(s), AH 64.8 kJ/mol, how many erams of Cao (MM HOAgmol must react…

A: given;

Q: A chemist places 1.750 g of ethanol, C2H6O, in a bomb calorimeter with a heat capacity of 12.05…

A: a.) Models would be calculated using formula : Moles = mass / molar mass b.) To calculate q ( heat…

Q: Given the reaction below, write the thermochemical equation showing the enthalpy of the…

Q: "The thermite reaction combines aluminum powder and iron oxide and ignites the mixture to make…

Q: The complete combustion of ethanol, C2H5OH1l2, to formH2O1g2 and CO21g2 at constant pressure…

A: The explanation and the diagram is as given below:

Q: Consider the combustion of liquid C₅H₈ in oxygen gas to produce carbon dioxide gas and water vapor.…

A: Heat (q) =-4791 J Moles (n) = 0.001561 mol ∆H = -q/n =4791/0.001561 = 3069 kJ/mol

Q: When aluminum and iron(III) oxide react to form iron and aluminum oxide, 851.5 kJ of energy is…

A: Al with Fe2O3 to form Fe and Al2O3. Write the complete reaction. 2Al+Fe2O3→2Fe+Al2O3

Q: I need help calculating the heat of reaction and enthalpy of reaction given the formulas and the…

A: Introduction: Specific heat equation: The equation that is used for calculating the amount of…

Q: ΔHf for the following reaction is – 186 kJ. H2(g) + Cl2(g) → 2HCl(g) (i) Determine the kJ of heat…

A: Hydrogen reacts with chlorine to form hydrogen chloride. The equation for the balanced chemical…

Q: 3. Calculate the enthalpy for this reaction: 3NO2(g) + H2O(t) ---> 2HNO3(aq) + NO(g) given the…

Q: The complete combustion of ethanol, C2H5OH(l), to formH2O(g) and CO2(g) at constant pressure…

A: Balanced chemical equation of a reaction is written according to law of conservation of mass.…

Q: In this experiment you will place a sample of your salt in water in a constant pressure calorimeter.…

A: Here we need to calculate number of moles of SrCl2. Number of moles = mass / molar mass

Q: 3. a hunk of metal-like substance was found in an archeological site. In an attempt to identify it,…

A: Given that - Specific heat of given metal is = 0.448 J/g °C The specific heat of Substance is…

Q: Suppose that the molar enthalpy of a reaction is -69.06 kJ/mol and 1.134 moles are reacted. How many…

A: energy from the reaction evolved can be calculated using molar enthalpy and moles.

Q: Suppose that the molar enthalpy of a reaction is -61.27 kJ/mol and 4.799 moles are reacted. How many…

A: since we know that molar enthalpy is the enthalpy of reaction when one mole of a substance is…

Q: A series of hypothetical thermochemical reactions with their corresponding enthalpies are given…

A: Given,

Q: In constant-pressure calorimetry problems, we use the equation: qsoln = Cs ·msoln-AT=-qrxn In one…

A: Given : In constant-pressure calorimetry problems, the equation used is, => qsoln = CsmsolnΔT =…

Q: Calculate ΔU of a gas for a process in which the gas absorbs 41 J of heat and does 8 J of work by…

A: The change in internal energy of a system is denoted by ∆U. Heat absorbed by the system is denoted…

Q: What is the standard molar enthalpy of formation for aluminum oxide (Al203) based on the…

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: ining this experiment in the laboratory, you should be able to an estions. othermic and exothermic…

A: Given : Initial temperature = 500C Final temperature = 100C

Q: Nitric acid and plumbous carbonate react: a) Write a balanced equation for this reaction. b)…

A: a) The balanced equation is: PbCO3 (s) + 2 HNO3 (aq) → Pb(NO3)2 (aq) + CO2 (g) + H2O (l)

Q: Nitroglycerin, is an explosive most often used in mine or quarry blasting. It is a powerful…

A: A balanced chemical equation is an equation that has the same number of atoms of an element on the…

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

A: The reaction enthalpy value that is ∆H value positive means the heat is absorbed during the…

Concept explainers

Matter and Measurement

In the universe, there is matter, energy, and void space. The universe contains energy and void space. The definition of matter can be considered as something which possesses mass and consumes space. Chemistry is that branch of science which deals with the study of matter. Under chemistry, nature, composition, and the changes occurring to matter are discussed.

Question

Q18

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

SEE SOLUTION Check out a sample Q&A here

Step 1

Step 2

Step 3

Step 4

Step by step

Solved in 4 steps

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemistry and related others by exploring similar questions and additional content below.

Similar questions

9.63 Reactions of hydrocarhons are often studied in the petroleum industry. One example is 2C3H8(g)C6H6(l)+5H2(g) , with H = 698 kJ. If 35 L of propane at 25C and 0.97 atm is to be reacted, how much heat must he supplied?
What is the difference between the enthalpy of reaction and the enthalpy of formation? For what chemical reaction(s) are the two quantities the same?
Apply Phosphorus trichloride is a starting material for the preparation of organic phosphorous compounds.Demonstrate how thermochemical equations a and b can be used to determine the enthalpy change for the reaction PCl3(l)+Cl2(g)PCl5(s) . a. P4(s)+6Cl2(g)4PCl3(l)H=1280kJ b. P4(s)+10Cl2(g)4PCl5(s)H=1774kJ
When hydrazine reacts with oxygen, nitrogen gas and steam are formed. (a) Write a thermochemical equation for the reaction. (b) How much heat is evolved or absorbed if 1.683 L of steam at 125C and 772 mm Hg are obtained?
Chlorine trifluoride is a toxic, intensely reactive gas. It was used in World War II to make incendiary bombs. It reacts with ammonia and forms nitrogen, chlorine, and hydrogen fluoride gases. When two moles of chlorine trifluoride react, 1196 kJ of heat are evolved. (a) Write a thermochemical equation for the reaction. (b) What is Hf for ClF3?
Ethanol, C2H5OH, is used as a fuel for motor vehicles, particularly in Brazil. (a) Write the balanced equation for the combustion of ethanol to CO2(g) and H2O(g), and, using the data in Appendix G, calculate the enthalpy of combustion of 1 mole of ethanol. (b) The density of ethanol is 0.7893 g/mL. Calculate the enthalpy of combustion of exactly 1 L of ethanol. (c) Assuming that an automobile’s mileage is directly proportional to the heat of combustion of the fuel, calculate how much farther an automobile could be expected to travel on 1 L of gasoline than on 1 L of ethanol. Assume that gasoline has the heat of combustion and the density of n—octane, C8H18(Hf=208.4kJ/mol;density=0.7025g/mL).
One of the components of jet engine fuel is n-dodecane, C12H26(), which has a standard enthalpy of combustion of 8080.1 kJ/mol. (a) Write the thermochemical equation for the combustion of n-dodecane. (b) Use the standard enthalpies of formation in Appendix G to calculate the standard enthalpy of formation of n-dodecane.
A 250-g sample of water at 20.0C is placed in a freezer that is held at a constant temperature of 20.0C. Considering the water as the system, answer the following questions: a What is the sign of qsys for the water after it is placed in the freezer? b After a few hours, what will be the state of the water? c How will the initial enthalpy for the water compare with the final enthalpy of the water after it has spent several hours in the freezer? d What will the temperature of the water be after several hours in the freezer?
When iron is obtained from iron ore, an important reaction is conversion of Fe3O4(s) to FeO(s). Write a balanced equation for this reaction. Then use these thermochemical expressions to calculate rH for the reaction. 3Fe(s)+2O2Fe2O4(s)rH1=1118.4kJFe(s)+12O2(g)FeO(s)rH2=272.0kJ
Calculate the enthalpy of combustion of propane, C3H8(g), for the formation of H2O(g) and CO2(g). The enthalpy of formation of propane is 104 kJ/mol.
Sodium carbonate, Na2CO3, is used to manufacture glass. It is obtained from sodium hydrogen carbonate, NaHCO3, by heating. 2NaHCO3(s)Na2CO3(s)+H2O(g)+CO2(g) Calculate the standard enthalpy of reaction, using enthalpies of formation (Table 6.2).
Explain why absolute enthalpies and energies cannot be measured, and only changes can be determined.