Determine the heat of formation for C2H2.   CaC2(s) + 2H2O(l) ---> C2H2(g)  + Ca(OH)2(s) Delta H(rxn)= -128.9kJ Substances: CaC2(s)= S(1/mol*K)= 70.0 Delta H(f) (kJ/mol)= -59.8 H20(l)= S= 69.9 Delta H= -285.8 C2H2(g)= S= 200.8 Delta H= ? Ca(OH)2= S= 83.4 Delta H= -986.1

Q: A bomb calorimetry experiment is performed with xylose, C₅H₁₀O₅ (s), as the combustible substance.…

A: Given that Xylose (C5H10O5) has    Mass burned, m = 2.365 g      Molar mass M = 150.13 g/mol…

Q: Adding 5.47 g of to 140 g of water in a coffee-cup calorimeter (with stirring to dissolve the salt)…

A: According to the question, we are adding 5.47 g of NH4NO3 to 140 g of water in a coffee-cup…

Q: 5.145 A piece of silver with a mass of 362 g has a heatcapacity of 85.7 J/°C. What is the specific…

A: Given: Mass of silver= 362g Heat capacity= 85.7 J/°C To find: The specific capacity of silver.

Q: Calculate AH for the combustion of methane. CH4 (g) + 2 02 (g) - CO2 (g) + 2 H2O (g) Given the…

A: Given  Reaction  CH4(g)  + 2O2(g)   →  CO2(g)   +  2H2O(g)    Molecule         Enthalpy of formation…

Q: When 25.0 mL of 1.0 M H₂SO is added to 50 ml of 1.0 M NaOH at 25 °C in a calorimeter, the…

A: ∆H in kJ can be calculated using formula :  ∆H = -q  Where , q is heat released or absorbed and is…

Q: A sample of nickel is heated to 99.8C and placed in a coffee-cup calorimeter containing 150.0 g…

A: Heat change in a body is depends on the mass and temperature change of the body. heat change = mass…

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

A:

Q: Consider the dissolution of CaCl2 : CaCl2 (s) → Ca2+ (aq) + 2CI- (aq) ΔH = -81.5 Kl  An 11.0-g…

A: Given: mass of CaCl2 = 11.0 g. mass of water = 125 g Initial temperature = 25 °C  Specific heat…

Q: 3.88 g of solid ammonium nitrate dissolves in 60.0 g of distilled water in a coffee-cup calorimeter.…

A: Given that:  Mass of ammonium nitrate given = 3.88g Mass of water = 60.0grams Initial temperature of…

Q: Given that that AH of formation of n-butane. J: C-H - 412, C-C-340, H-H- 436, AH ab kl graphite:…

A: Interpretation-  To determine the enthalpy of formation of n- butane when here given ∆HoB.D / KJ :…

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

A: To solve this problem, first calculate the q for reaction by using formula q = n∆H. Using q value…

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

A: the amount of heat required to raise the temperature by 1 degree of mass 1 gm is known as specific…

Q: A 0.5736 g of unknown substance is burned in a constant – volume bomb calorimeter that has a heat…

A: Given: Mass of substance = 0.5736 g Heat capacity of calorimeter = 1.674 kJ/°C temperature increased…

Q: The combustion of an organic compound releases 35.6 kJ of energy and causes the temperature of a…

A: The heat capacity of a substance is defined as the amount of heat required to raise the temperature…

Q: A 100.0-g sample of cold water at 20.0oC is added to a warm water of unknown mass at 65.0oC. If the…

A: Given information is as follows: The mass of sample of cold water = 100 g The initial temperature of…

Q: A 0.692 g sample of glucose (C6H12O6) is burned in a bomb calorimeter. The temperature of 575g of…

A: # The heat released by the burning of glucose will be absorbed by the calorimeter and the water. #…

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: 1. Benzene is toxic to humans, and is highly flammable as well. Calculate the amount of heat…

A: Given reaction; 2C6H6+15O2→12CO2+6H2O   ;∆Ho=-98.0kJ

Q: A 1.13-g sample of glucose (C6H1206) is burned in a constant-volume calorimeter that has a heat…

A: Given , mass of glucose , m=1.13 g heat capacity Cg=14.0 KJ/°C Initial temperature, Ti=17.7°C Final…

Q: Consider the dissolution of CaCl₂: CaCl₂(s) → Ca²⁺(aq) + 2Cl⁻(aq) ∆H = -81.5 kJ/mol A 15.0-g sample…

A: Heat capacity is equal to the amount of heat required to raise the temperature by 1oC of 1g of…

Q: A 0.672-g sample of glucose, C6H12O6 (180.2 g.mol-1), was burned in a constant-volume calorimeter.…

A: Constant volume calorimeter is carried out in a bomb calorimeter, a device commonly used to…

Q: Consider the thermochemical equation for the combustion of ethyl alcohol: C2H5OH(l)  + 3O2(g)  --->…

A:

Q: Deterioration of buildings, bridges, and other structuresthrough the rusting of iron costs millions…

A: In a balanced equation, the number of atoms on both sides of the equation should be the same. This…

Q: Isooctane (C8H18; density = 0.69 g/mL) is one of the many hydrocarbons that make up gasoline. Use…

A:

Q: A bomb calorimetry experiment is performed with xylose, CSH10O5 (S), as the combustible substance.…

A: Given data, Initial calorimeter temperature T1 = 23.29 C° Final calorimeter temperature T2 = 27.19…

Q: When a solid dissolves in water, the solution may become hotter or colder. The dissolution enthalpy…

A: Since your question has multiple parts, we will answer the first question for you. If you want…

Q: Consider the following thermochemical reaction for kerosene: 2C12H16 (l) + 37O2 (g) → 24CO2 (g) +…

A:

Q: The standard enthalpy of combustion of ethanol (C2H5OH) is -235.1 kJ/mol. How many kilojoules of…

A: Thermodynamic is the branch of chemistry that mainly deals with the heat transfer between system and…

Q: In a coffee-cup calorimeter, 110.0 mL of 1.1 M NaOH and 110.0 mL of 1.1 M HCl are mixed. Both…

A:

Q: Mothballs are composed primarily of the hydrocarbonnaphthalene (C10H8). When 1.025 g of naphthalene…

A: Specific Heat Capacity: The amount of heat required to raise the temperature of a substance  is…

Q: at 6.49) When a 2.150-g sample of glucose, C,H12O6, is burned in a bomb calorimeter with a heat…

A: In this question, we want to determine the ∆E for the combustion of of Glucose. You can see details…

Q: A 1.00 g sample of the rocket fuel hydrazine (N2H4) is burned in a bomb calorimeter. The temperature…

A: Given, Mass of sample = 1.0 g The initial temperature, T1 = 24.62 oC. Final temperature is T2 =…

Q: What mass of methane must be burned in order to liberate 12705 kJ of heat? Standard Enthalpies of…

A: We have to produce 12705 KJ of heat  . We have to tell how much methane has to be burnt in order to…

Q: Combustion of 7.21 g of liquid benzene (C6H6, Mm= 78.12 g.mol-) causes a temperature rise of 50.3°C…

A: Given: The mass of the liquid benzene is 7.21 g The molar mass of benzene is 78.12 g.mol-1 The…

Q: A 0.692 g sample of glucose is burnt in a bomb calorimeter containing 575 g of water. The…

A:

Q: 5.000 g of aluminum (III) chloride is dissolved in 60.0 mL of water. The temperature changes by…

A:

Q: Given the following thermochemical equation: CACO3(s) → CaO(s) +CO2 (g) AH=177.8 kJ/mol What is the…

A: In this problem internal energy to be calculate.

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

A:

Q: Assume that the specific heat of the solution is the same as that of pure water. 5.54 (a) When a…

A: Given: Mass of solution= 60g  Mass of sample = 3.88g Initial temperature = 230C Final temperature =…

Q: The heat of combustion of isopropyl alcohol is -2006 kJ/mol. Given the following information,…

A:

Q: The heat capacity of a bomb calorimeter was determined by burning 6.87 g of methane (energy of…

A:

Q: 5. A piece of copper metal of mass 6.5 kg is heated from 20.5ºC to 324.3°C. Calculate the heat…

A: The amount of heat absorbed by the piece of metal can be calculated as follows:

Q: 1. A 10.0 g sample of propane, C;Hs, was combusted in a constant-volume bomb calorimeter. The total…

A: Given that : Mass of propane (m) = 10.0 g Total heat capacity of the bomb calorimeter and water (c)…

Q: the formation of table salt from chlorine gas and sodium metal is highly exothermic 2Na + Cl2=NaCl…

A: Answer:- This question is answered by using the simple concept of the thermochemical reaction which…

Q: 6. A 2.50 g sample of sucrose (C12H22011) was burned in excess oxygen in a bomb calorimeter which…

A: Given that,  Mass of sucrose = 2.50 g Molar mass of sucrose = 342.3 g/mol Number of moles of sucrose…

Q: A 4.70-g sample of aluminum pellets (specific heat capacity = 0.89 J °C- g) and a 10.00-g sample of…

A: Since the heat lost by both metals will be used in increasing the temperature of the water  Q = mCΔT…

Q: A 46-g sample of liquid water at 25.0 C is mixed with 22 g of water at 45.0°C. The final temperature…

A: To solve this problem we will use the formula   q = m•c • ∆T  Where ,  q = heat released or absorbed…

Q: A 5.00 g sample of an unknown substance was heated from 25.2 °C to 55.1 °C, requiring 133 J to do…

A: Mass of sample, m =5.00 g Initial temperature=25.2 °C Final temperature=55.1 °C Temperature…

Q: 6. The heat of combustion of liquid ethylene glycol, C2H6O2 is -1189.2 kJ/mol. In an experiment 4.34…

A: All the details are explained in handwritten solution.

Q: The value of AH° for the reaction below is -336 kJ. Calculate the heat (kJ) released to the…

A: We have a reaction,  CH4 + 3Cl2   →  CHCl3 + 3HCl ,   ΔH = –336kJ we need to find heat released when…