The value of ΔHo for the following reaction is -72 kJ. How many kJ of heat will be evolved when 4.0 mole of HBr is formed in this reaction? H2(g) + Br2(g) ----> 2HBr(g)

Q: 3. A quantity of 1.00 x 10° mL of 0.500 M HC1 was mixed with 1.00 x 10° mL of 0.500 M NAOH in a…

A: Density of solution = 1 g/mL Volume of HCl = 100 mL Volume of NaOH = 100 mL Mass of solution =…

Q: Given the thermochemical expression below: CaO (s) + 3C (s) ----> CaC2 (s) + CO (g)…

A:

Q: Given the reaction: 4 Fe(s) + 302(g) → 2 Fe203(s) A H= -1652 kJ, what is the enthalpy change when…

A: for a given reaction, 4 Fe(s) + 3 O2(g) → 2 Fe2O3(s) enthalpy change, Δ H = -1652 KJ

Q: Liquid hydrogen peroxide releases oxygen gas in its decomposition. 2 H202 - 2 H20 + O2 AH rxn =…

A:

Q: Consider the following reaction: 2 PbS (s) + 3 O2 (g) → 2 PbO (s) + 2 SO2 (g) AHxn = -827.4 kJ What…

A:

Q: Consider the following chemical reaction:   CS2(g)  +  3Cl2(g)  --->  S2Cl2(g)  +  CCl4(g);…

A: In the given equation is △H  is negative , so the given reaction is exothermic reaction.  1 mole of…

Q: In the following reaction, how much heat is generated when 6.57 moles of CH₄ are burned? CH₄ (g) + 2…

A: The change in enthalpy of a reaction measures the amount of heat absorbed or released during the…

Q: Elemental iron is used in heat packs and the reaction can be represented as: 4 Fe(s) +3 O2(g) → 2…

A: When enthalpy is negative that means reaction is exothermic reaction

Q: The value ΔH0 of for the reaction 2Ba(s) + O2(g)→ 2BaO(s) is -1107 kJ. Determine the amount of…

A: First, calculate moles of BaO(s) No of moles of BaO(s) = Mass/Molar mass = 5.75g/(153.33g/mol) =…

Q: Given the chemical reaction: CHale) +5 0,g)→3 CO,) +4 H,OG) AH = -2044 kJ How much heat would be…

A: When hydrocarbons are combusted, then the large amount of heat is produced which is known as…

Q: Consider the reaction: B2H6(g) + 3O2(g) --> B2O3(s) + 3H2O(g)             ΔH = -2035 kJ Calculate…

A: The given Reaction is,

Q: A

A:

Q: In the following reaction, how much heat is generated when 2.21 moles of CH₄ are burned? CH₄ (g) + 2…

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

Q: The combustion of ammonia is : 4NH3(g)+5O2(g)--> 4NO(g)+6H2O(g)        DeltaH= -905kJ what is the…

A: Given Heat of formation data: NO(g) = 90.4 kJ/ mol H2O(g) = -241 kJ/mol 4NH3(g)+5O2(g)-->…

Q: 6. The reaction for the combustion of octane, CeH18, is shown below. 2 CH18(g) + 25 0:(g)16 CO:(g) +…

A:

Q: In the following reaction, how much heat is generated when 2.37 moles of CH₄ are burned? CH₄ (g) + 2…

A: Given: moles of CH₄ = 2.37 mole

Q: Magnesium burns in air to produce a bright light and is often used in fireworks displays. The…

A:

Q: The heat of combustion of ethanol is -1367 KJ/mol, a batch of sauvignon Blanc wine contains 10.6%…

A: GivenThe heat of combustion of ethanol is —1367 kJ/mol.The mass percent of ethanol in the wine is…

Q: In a coffee cup calorimeter, a 6.50-g sample of solid sodium hydroxide dissolves in 100.0 g of…

A: Specific heat : It is defined as the quantity of heat required to raise the temperature of one gram…

Q: In the following reaction, how much heat is generated when 2.25 moles of CH₄ are burned? CH₄ (g) + 2…

A: Combustion :- Burning of a compound in excess of air or oxygen is called as combustion When a…

Q: 5.00 g of potassium hydroxide (molar mass = 56.1 g/mol) dissolves in 100.0 g of water and the…

A:

Q: A particular natural gas consists, in mole percents, of 83.0% CH4 (methane), 11.2% C₂H6 (ethane),…

A: First of all, Number of moles of gas is calculated using PV = nRT and mole percent  Then, total heat…

Q: Calculate the energy produced when 5.0 mol of CO2 are produced on the basis of the following…

A:

Q: For the reaction below, ΔHrxn = −126 kJ/mol. How much heat is released when 2.00 mol of NaOH is…

A: The complete balanced equation for reaction between Na2O2 and H2O is as follows: 2Na2O2 (s) + 2H2O…

Q: In the following reaction, how much heat is generated when 3.21 moles of CH₄ are burned? CH₄ (g) + 2…

A: Given chemical equation with given information:                      CH₄ (g) + 2O₂ (g) → CO₂ (g) +…

Q: The standard heat of formation of HCl(g) is -92.3 determine Hrxn (in KJ) for a reaction:…

A:

Q: 5.00 g of potassium hydroxide (molar mass = 56.1 g/mol) dissolves in 100.0 g of water and the…

A: The heat of a substance is given as :

Q: How much heat evolves from burning 16.4 g of sulfur, S8, in air? S8 + 8 O2 ----> 8 SO2 H rxn=…

A:

Q: Given the following decomposition reaction 2H2O2 (l)---> 2H2O(l) + O2 (g) ΔH = –196.1 kJ A. How…

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

Q: In the following reaction, how much heat is generated when 2.53 moles of CH₄ are burned? CH₄ (g) + 2…

A: The reaction given is CH₄ (g) + 2 O₂ (g) → CO₂ (g) + 2 H₂O(g)…

Q: How much heat (in kilojoules) is evolved when 135 g of aluminum reacts completely in the following…

A: Applying mole concept and unitary method for calculation.