.​Using the enthalpy of formation of the following compounds: ​​    Si(s)  +  O2(g)  ®  SiO2(s);​​Ho = –910.9 kJ ​​   Si(s)  +  2F2(g)  ®  SiF4(g);​​Ho = –1614.9 kJ ​      H2(g)  +   F2(g)  ®  2HF(g);​​Ho = –546.0 kJ ​    2H2(g)  +   O2(g)  ®  2H2O(g);​​Ho = –483.6 kJ ​Calculate the enthalpy change (Ho) for the reaction of silicon dioxide with hydrogen fluoride gas given by the following equation:   ​​​SiO2(s)  +  4HF(g)  ®  SiF4(g)  +  2H2O(g)

Q: A scientist measures the standard enthalpy change for the following reaction to be -171.6 kJ :…

A: Given;

Q: 2. For which of the following is the enthalpy of the reaction the same as the enthalpy of formation?…

A: The standard enthalpy of formation is the reaction enthalpy when the formation of one mole of a…

Q: An important step in the production of sulfuric acid is the oxidation of SO2 to SO3. SO2 (g) + 1/2…

A:

Q: Using standard heats of formation, calculate the standard enthalpy change for the following…

A: Reaction :

Q: H2(g) + F2(g) → 2 HF(g)    ΔH = -542 kJ What would be the enthalpy change for the reverse of the…

A: Since, The standard enthalpy of the formation is defined as change of enthalpy of 1 mol of the…

Q: b How much energy is evolved or absorbed as heat in the oxidation of 12.0 g of NH3? Heat of…

A: Enthalpy is a amount of heat evolved or absorbed for a chemical changes at constant pressure.

Q: calculate the change in enthalpy for Reaction 2. Reaction 1:…

A: Given Reaction 1: C3H8(g) + 5O2(g)→3CO2(g) + 4H2O(g)  ∆H1 = -2043 kJ mol-1 Reaction 2: 6C3H8(g) +…

Q: You wish to know the enthalpy change for the formation of liquid PCl3 from the elements. P4(s)+6…

A:

Q: Carbon disulfide is a colorless liquid. When pure, it is nearly odorless, but the commercial product…

A: Given:

Q: A scientist measures the standard enthalpy change for the following reaction to be 2885.4 kJ:…

A: 6CO2 (g)  + 6 H2O (l)  ---> C6H12O6 (s) + 6 O2 (g)  ∆Hrxn  = 2885.4 KJ/mol ∆H°f H2O = ?

Q: Calculate the change of enthalpy for the reaction CH4 (g) + NH3 (g) --> HCN (g) +3H2 (g) from the…

A: Calculate the change of enthalpy for the reaction CH4 (g) + NH3 (g) → HCN (g) +3H2 (g) from the…

Q: 2. surrou. Calculate the enthalpy change to be expected for the reaction NaCl(s)→ NaCl(aq) where (s)…

A:

Q: Consider the following reaction: C(s, graphite) + 2H2O(l) → CO2(g) + 2H2(g), AHrxn = ? Given the…

A: Given that, the reaction is:

Q: A scientist measures the standard enthalpy change for the following reaction to be -18.4 kJ: Ca(OH)2…

A: From the Given:∆Hf° (CaCl2(s)) = -795.8 kJ/mol∆Hf° (H2O(l)) = -285.8 kJ/mol∆Hf° (Ca(OH)2(aq)) =…

Q: A scientist measures the standard enthalpy change for this reaction to be -1149.8 kJ/mol. 2H,S(g) +…

A: Consider the given reaction is as follows; 2 H2S g     +   3 O2g     →    2 H2Ol   +   2 SO2g…

Q: Based on standard enthalpies of formation, what is the standard enthalpy of reaction for the…

A: Given,The balanced reaction:1 N2 (g) + 4 H2O(l)  1 N2O4 (g) + 4 H2 (g)

Q: A scientist measures the standard enthalpy change for the following reaction to be -896.4 kJ:…

A: Given : a reaction And ∆H° = -896.4 KJ

Q: For which one of the following is the enthalpy of the reaction the same as the enthalpy of…

A: Given reactions: A) H₂ (g) + F₂ (g) → 2 HF (g) B) Ca (s) + ½ O₂ (g) → CaO (s) C) 2 CH₃OH (l) +…

Q: Calculate the overall change in enthalpy that occurs when 60.0 grams of PH3 (g) reacts with 80.0…

A: Answer: Thermochemical equation of the oxidation reaction of PH3 is given and we have to use thermal…

Q: The enthalpy change in the hydrogen combustion reaction is H2(g) + O2(g) H2O(1) AH-241.8 kJ/mol.…

A:

Q: Calculate the standard enthalpy for the reaction: 4NH3(g) + 5O2(g) → 4NO(g) + 6H2O(g), given the…

A: Given: (1) N2(g) + O2(g) → 2NO(g); ΔHrxn = -43.1 kcal mol-1  (2) N2(g) + 3H2(g) → 2NH3(g); ΔHrxn =…

Q: The enthalpy of formation for H2O(g), CO2(g), and C2H5OH(l), in kJ/mol, are given as follows:…

A: Given: The reaction is as follows: C2H5OH(l)  +  3O2(g)  -->  2CO2(g)  +  3H2O(g) Hfo[H2O(g)] =…

Q: Calculate the standard enthalpy change for the following reaction: 2CH3OH(l)   +   3O2(g)   →…

A: Heat released and absorbed during a reaction by change in bonding is defined as heat of reaction or…

Q: Calculate the standard enthalpy for the reaction: 4NH3(g) + 5O2(g) → 4NO(g) + 6H2O(g)

A: Let us denote the given reactions by reaction 1,2,3, and 4 from up to down respectively. Now we have…

Q: A scientist measures the standard enthalpy change for the following reaction to be -1152.8 kJ:…

A:

Q: Ethylene glycol, HOCH,CH2OH, is used as antifreeze. It is produced from ethylene oxide, C2H40, by…

A: The reactions given are, 1)                               ΔH1 = -2612.2 KJ 2)…

Q: 6. Given that: S(s) + O2(g) --> SO2(g); ΔH = -296.8 kJ/mol 2 SO3(g) --> 2 SO2(g) + O2(g); ΔH =…

A: We have to calculate enthalpy (∆H) for -     2S(s) + 3O2(g) --> 2SO3(g) The given reactions are -…

Q: For which one of the following is the enthalpy of the reaction the same as the enthalpy of…

A: The standard enthalpy of formation is defined as the enthalpy change accompanying the formation of 1…

Q: Use standard enthalpies of formation to determine the change in enthalpy for the following reaction:…

A: Applying concept of calculation of chage of enthalpy of chemical reaction. ∆Hreaction= ∆Hf…

Q: The standard enthalpy change for the following reaction is 470 kJ at 298 K. 2 CH3CH,OH(g) 4…

A: We have to calculate the enthalpy change for given reaction.

Q: Given the following two reactions and their enthalpy changes,             2 ClO2 (g)   -->   Cl2 (g)…

A:

Q: For each of the following reactions: (1) Calculate the enthalpy change for the reaction using…

A: The standard enthalpy of formation or standard heat of formation of a compound is the change of…

Q: In general, automobile engines are connected to a lead-acid accumulator. During discharge, the…

A: We are give an chemical reaction which occurs and lead acid accumulator and asked to calculate its…

Q: Given the following two reactions and their enthalpy changes,             2 ClO2 (g)   -->   Cl2…

A:

Q: The standard enthalpies of combustion (ΔH°comb) of C6H6(g) and C2H2(g) are –3301 kJ/mol and –1300…

A: Given combustion reaction; C6H6 (g)  →  3C2H2 (g) ΔH°comb of C6H6 (g) = -3301 KJ/mol ΔH°comb   for…

Q: What is the enthalpy change of the following reaction: WO3 (s) + 3 H2 (g) → W (s) + 3 H20 (g) given…

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

Q: Tetrachloromethane, CC14, is formed from methane and chlorine in the following reaction: CH4 (g) + 4…

A:

Q: For which one of the following is the enthalpy of the reaction the same as the enthalpy of…

A: Enthalpy of fornation :-  The enthalpy change involved in the formation of 1 mole of a compound from…

Q: nearly odorless, but the commercial product smells vile. Carbon disulfide is used in the manufacture…

A: Form given data , calculate the standard enthalpy change for given reaction :

Q: A scientist measures the standard enthalpy change for the following reaction to be -34.0 kJ: C₂H4…

A: ΔH° = -34.0 kJ ΔH°f (CH3CH2OH) = -235.1 kJ/mol ΔH°f (C2H4) = -52.3 kJ/mol

Q: 2NO(g) + 02(g)–2NO2(g) Based on this value and the standard enthalpies of formation for the other…

A: Given  2NO (g) + O2 (g) ---> 2 NO2 (g)  ∆H rxn = -112.0 KJ  ∆H°f (NO2) = ?

Q: Calculate the enthalpy change for the following reaction 2H2S (g) + SO2 (g) → 3S (s) + 2H2O (g) from…

A: We have to calculate the ∆H∘ value for the reaction, 2H2S (g) + SO2 (g) → 3S (s) + 2H2O (g)

Q: Consider the following two reactions and the corresponding enthalpy changes: CH4(g) +2 O2(g)→…

A:

Q: A scientist measures the standard enthalpy change for the following reaction to be 6.7 kJ : CO(g) +…

A: