it has the answers I just don't know how to get them.

Enthalpy of formation is the enthalpy change during formation of one mole substance from it's most stable form of constituents elements

it has the answers I just don't know how to get them. Write an chemical equation...
Worksheet: Chapter 6-7 1. Ammonia (NH,) burns in the presence of a copper catalyst to form nitrogen gas. -1267 k 4NH3 (g)+302(g) 2N2(g)+6H2OG AH=-1 How much heat would evolve when burn 35.80 g of ammonia burns? (1 point) (1 point) Calculate the heat of reaction for 2. PbCl2(s) + Cl2(g)> PbCl4(1) Using the following set of reactions: Pb(s) + Cl2(g) PbCl2(s); AH -359.4 kJ Pb(s)+2C12(g)-PbCl4(1); AH= -329.3 kJ (1) (2) 3. Calculate the standard enthalpy change, AHo, for the following...
Given the thermo-chemical equations and their corresponding enthalpies of reaction: C2H6 (g) + 7/2 O2 (g) --> 2CO2 (g) + 3 H2O (l) ΔHRXN = -1560 kJ/mol 2C2H2 (g) + 5 O2 (g) --> 4 CO2 (g) + 2 H2O (l) ΔHRXN = -2599 kJ/mol H2 (g) + 1/2 O2 (g) --> H2O (l) ΔHRXN = -286 kJ/mol What is the standard enthalpy of reaction for the following? C2H2 (g) + 2 H2 (g) --> C2H6 (g)
Please show work for the three problems... I have the answers
but don't know how to do the problems. Please show each one step by
step
1.)
Answer: D
2.)
Answer: A
3.)
Answer: D
Determine the heat of reaction for the combustion of ammonia 4NH3(g)+702(g)-»4NO2(g) + 6H20() using molar enthalpies of formation AH° (kJ/mol) 45.9 molecule NH3(g) NO2(g) H2O() +33.1 -285.8 a. +30.24 kJ b. -206.9 kJ c. -298.6 kJ d. -1398.8 kJ e. -1663.6 k ,Determine the heat...
- The standard enthalpy of formation, AH, of N2O3(g) is 91.2 kJ/mol. Write the thermochemical equation corresponding to this.
I
just want to see the steps on how to work out the problem,
thanks.
18. Octane (CHıx) undergoes combustion according to the following thermochemical equation. 2C3H13() + 2502(g) → 16CO2(g) + 18H2011 AHnx = -1.0940 * 10ºkJ/mol What is the standard enthalpy of formation of liquid octane? AH* (CO2(g)) = -393.5 kJ/mol and AH® (H20(0) = -285.8 kJ/mol A.-250 kJ/mol B. -10,940. kl/mol C.-2188 kJ/mol D. -495 kJ/mol E. 495 kJ/mol
UJU LIPICI J UU TUJUI IULILLLIUIT. (a) Write the balanced chemical equation that represents the standard heat of formation of Be(OH)2(s) at 298 K. Use the pull-down boxes to specify states. Write fractions with a slash, such as 1/2 for one half. If a box is not needed leave it blank. Bez 3 + OH - 3) + - BeOH)2 6:) (b) The standard enthalpy change for the following reaction is -92.2 kJ at 298 K. N2(g) + 3 H2(g)—...
Part A:
Write an equation for the formation of NO(g) from its elements
in their standard states.
Express your answer as a chemical equation. Identify all of the
phases in your answer.
Part B:
Write an equation for the formation of BF3(g) from its elements
in their standard states.
Express your answer as a chemical equation. Identify all of the
phases in your answer.
Part C:
Write an equation for the formation of C6H6(l) from its elements
in their standard...
Write the thermochemical equation for each of the following. Be sure to give the physical state for all reactants and products in the chemical equation and use the appropriate, complete symbol for the enthalpy change, including units. a. The standard enthalpy of formation of water. b. The standard bond dissociation enthalpy for H2 at 298K. c. The standard enthalpy of combustion of liquid methanol. 3. What do we mean by the reference state? 4. Why is the standard enthalpy of...
What is AHin for the following chemical reaction? CS2(g) + 2H20(1) - CO2(g) + 2H2S(g) You can use the following table of standard heats of formation (AH) to calculate the enthalpy of the given reaction Element Compound Element Compound Standard Heat of Formation (kJ/mol) 218 Standard Heat of Formation (kJ/mo!) 473 0 285.8 H(g) H2(g) H2O(1) CS2(g) C(g) C(s) N(8) 02 (8) 0(g) H2S(g) CO2(g) HNO3(aq) 116.7 249 20.60kJ 393.5kJ 206.6 Express the standard enthalpy of reaction to three significant...
Enthalpy of Combustion -- Alkanes Write a balanced equation for the combustion of C9H20(l) (nonane) -- i.e. its reaction with O2(g) forming the products CO2(g) and H2O(l). Given the following standard heats of formation: ΔHf° of CO2(g) is -393.5 kJ/mol ΔHf° of H2O(l) is -286 kJ/mol ΔHf° of C9H20(l) is -229.0 kJ/mol What is the standard heat of reaction (ΔH°) for the combustion reaction of C9H20(l)? 1pts Calculate the difference, ΔH-ΔE=Δ(PV) for the combustion reaction of 1 mole of nonane....