684 g of sucrose undergo fermentation to form 349 g of ethanol. What is the percent yield of ethanol? Balance the chemical reaction equation and show all work.

Q: etermine the amount of heat (in kJ) given off when 1.86 x 10ª g of NOz are produced ccording to the…

A: Given, Mass of NO2 = 1.86 x 104 g  ∆H = -114.6 KJ/mol Molar mass of N = 14 g/mol Molar Mass of O =…

Q: if you spill some of the hydrochloric acids on the table during the reaction of hydrochloric acid…

A: The heat of neutralization: The amount of heat released by the reaction of one mole of an acid and…

Q: What is the formula for work in terms of pressure and volume?

A: The formula for work in terms of pressure and volume is to be given

Q: In the combustion of heptane, CO2 is produced Assume that you want to produce 600kg of dry ice per…

A:

Q: Consider these reactions: Reaction 1: H2(g)+Cl2(g)⟶2HCl(g)ΔH=−184.6 kJ  Reaction 2:…

A: Given :  Reaction 1  H2(g)+Cl2(g)⟶2HCl(g)    ΔH=−184.6 kJ  To calculate :-  Amount of Cl2 has…

Q: Bas. C3H8(g) + 5 02(g) -> 3 CO2(g) + 4 H20(g) AHrxn = -2217 kJ How many grams of O2 gas (molar mass…

A: Given that -  Thermodynamical Reaction is -  C3H8(g) + 5O2(g) ---> 3CO2(g) + 4H2O(g) , ∆Hrxn =…

Q: ellular respiration is a process that produces energy for the cell and is about 40% efficient. If…

A: The efficiency of the process of cellular respiration is = 40 % The total energy used in cellular…

Q: Determine the amount of heat (in kJ) associated with the production of  1.40  ×  104  g of  NO2…

A: The heat quantity that is absorbed or released, when any chemical reaction is occurred, isspecified…

Q: The complete combustion of octane occurs according to the following balanced equation: 2 C3H18(1) +…

A: The balanced reaction taking place is given as,

Q: How many grams of ammonium chloride were formed if the reaction released 518 kJ of heat

A: Given :-  N2(g) + 4H2(g) + Cl2(g) → 2NH4Cl                                               ∆Hrxn =…

Q: Nitroglycerin decomposes under sudden impact according to the equation below: 4 C3H5N3O9 (I) --> 12…

A: Ans

Q: using the following thermochemical equation determine the % yield form the following reaction if…

A: Given mass of octane =3.080×10=30.80 g Molar mass of octane C8H18=8×12+18×1=114g/mol Mass of CO2…

Q: Propane, C3H8(g), is used in many instances to produce heat by burning: C3H8(g) + 5O2(g) → 3CO2(g)…

A: Given :-  C3H8(g) + 5O2(g) → 3CO2(g) + 4H2O(l)      ΔH = -2220. kJ  To calculate :-  Mass of O2…

Q: How much heat will be released (∆H) if 0.4501 mol of NH₃ are mixed with 0.20 mol of O₂ in the…

A: This problem is based on the concept of limiting reagent.

Q: Determine the amount of heat (in kJ) given off when 49.0  g of ammonia (NH 3) are produced according…

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

Q: The decomposition of 2 mol of water to hydrogen and oxygen requires 137 kcal of energy. The reaction…

A: Start by taking a look at the thermochemical equation given to you                   2 H2O ( l ) +…

Q: The detonation of TNT (C-H;N;O6) is a unimolecular decomposition reaction, represented by the…

A: Answer: 4.052 × 103 kJ energy e is released if 325 g of carbon dioxide gas are formed.

Q: Constants Periodic Table A calorimeter is an insulated device in which a chemical reaction is…

A: Formula used  q = mwaterCwaterdT + CxdT where q = heat  delta H = qp at constant pressure

Q: What mass of methane (CH4) must be burned to release 185 kJ of heat? CH4 + 2O2 → CO2 + 2H2O…

A: Number of moles of a substance are calculated by dividing its mass by molarmass which may be…

Q: Determine the final temperature of a 377 g sample of iron when 2.64 kJ of heat is added. The initial…

A:

Q: According to the reaction below, determine the amount heat (in kJ) that can be generated from the…

A: Propane gas reacts with oxygen gas to form carbon dioxide gas and water gas. The equation for the…

Q: Acetylene can be produced by forcing calcium carbide to react with water, producing calcium…

A:

Q: How many moles of H2 are required to produce -2501 KJ of heat in the following reaction?       Heat…

A: Given Chemical reaction:

Q: If -4790 J of heat was produced from the combustion of 0.561 moles of C5H8, what is the enthalpy…

A: Given:  Heat released= 4790 J  Number of moles of C5H8 = 0.561 moles

Q: A 4.53 g sample of an unknown salt (MM = 116.82 g/mol) is dissolved in 150.00 g water in a coffee…

A: First Calculate specific heat of salt by using principle of calorimetry. Then use q= mC∆T

Q: Show a graph and explain the relationship of temperature and calorimeter constant.

A: Show a graph and explain the relationship of temperature and calorimeter constant.

Q: m cold Mass of cold water (g) = 50 g Tic Initial temperature of

A: Given, mcold=50 gTic=15°Cmhot=50 gTIh=80°CTf=35°C

Q: How many moles of KCIO, solid must be reacted according to the following balanced chemical reaction…

A:

Q: How much heat is generated from burning 3 moles of methane.

A: The combustion reaction of methane will produce carbon dioxide and water as per the reaction CH4 (g)…

Q: What quantity of heat (in kJ) is absorbed in the process of making 0.771 mol of CF₄ from the…

A: We have to calculate  quantity of heat (in kJ) is absorbed in the process of making 0.771 mol of CF₄…

Q: Consider these reactions: Reaction 1: H2(g)+Cl2(g)⟶2HCl(g)ΔH=−184.6 kJ  Reaction 2:…

A:

Q: The reaction for the combustion of propane is   C3H8(g)+5O2(g)⟶3CO2(g)+4H2O(l)…

A: Given combustion reaction;  C3H8(g) + 5O2(g) ---> 3CO2(g) + 4H2O(l)  delta(H) = -526.3 kcal/mole…

Q: An excess of chromium metal is added to 500.0 mL of a 0.915 M AgNO3 solution in a constant-pressure…

A:

Q: 21. Which device to nutritionists use to determine the number of calories in samples of food? a foam…

A: Nutritionists use a bomb calorimeter, which is abox with two chambers, one inside the other, toburn…

Q: A reaction is endothermic if it  A. absorbs heat  B. does work  C. has work done on it  D. releases…

A: A reaction is endothermic if it absorbs heat.

Q: According to the reaction below, determine the amount heat (in kJ) that can be generated from the…

A: Propane reacts with oxygen to form carbon dioxide and water. The equation for the balanced chemical…

Q: What mass of butane (C4H10) in grams is necessary to produce 1.5 × 10³ kJ of heat? What mass of CO₂…

A:

Q: 2

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

Q: C2H5OH + 302 → 2CO2 + 3H20 AH=1367KJ/mol How many grams of carbon dioxide are produced when 370. kJ…

A:

Q: What is the thermochemical equation. Formation of carbon dioxide gas from carbon (graphite) and…

A: The balanced chemical equation with the description of physical states and the amount of energy…

Q: For the following reaction, what mass, in g, of ammonia is required to produce 375.0 kJ of heat? 4…

A: The given reaction is, 4 NH3 (g) + 5 O2 (g) →4 NO (g) + 6 H2O (g) Given that, ∆H = -906 kJ/mol. To…

Q: 41. If 2 moles of diatomic gas kept at a volume of 20 liters and is compressed from 2 atmospheres of…

A:

Q: Determine the amount of heat absorbed when 35.77 grams of O, are produced according to the equation.…

A: A reaction will proceed by either absorption of heat (endothermic reaction)or else by releasing heat…

Q: When 1 mol of a fuel burns at constant pressure, it produces3452 kJ of heat and does 11 kJ of work.…

A: Given, When 1 mol of a fuel burns at constant pressure, it produces 3452 kJ of heat and does 11 kJ…

Q: How much heat will be released when 1.48g of chlorine reacts with excess phosphorus according to the…

A:

Q: What quantity of heat (in kJ) is absorbed in the process of making 0.889 mol of CF₄ from the…

A:

Q: 2. How many grams of N2 are needed to make -550.0 kJ? N2g) + 3H2g) 2NH3(g) AH = -92.6 kJ %3D

A:

Q: How much heat is released during the combustion of 7.50 g of methane (molar mass = 16.0 g/mol)?

A: Standard combustion enthalpy of methane = -890.8 kJ/mol 16g of methane release the heat = 890.8 kJ…

Q: Write one equation each for decomposition reactions where energy is supplied in the form of heat,…

A: Decomposition reactions are those types of reactions in which the chemical compound decomposes or…

Thermochemistry

Thermochemistry can be considered as a branch of thermodynamics that deals with the connections between warmth, work, and various types of energy, formed because of different synthetic and actual cycles. Thermochemistry describes the energy changes that occur as a result of reactions or chemical changes in a substance.    

Exergonic Reaction

The term exergonic is derived from the Greek word in which ‘ergon’ means work and exergonic means ‘work outside’. Exergonic reactions releases work energy. Exergonic reactions are different from exothermic reactions, the one that releases only heat energy during the course of the reaction. So, exothermic reaction is one type of exergonic reaction. Exergonic reaction releases work energy in different forms like heat, light or sound. For example, a glow stick releases light making that an exergonic reaction and not an exothermic reaction since no heat is released. Even endothermic reactions at very high temperature are exergonic.