Nitric acid can be formed in two steps from the atmospheric gases nitrogen and oxygen, plus hydrogen prepared by reforming natural gas. In the first step, nitrogen and hydrogen react to form ammonia: N2(g) + 3 H,(9) - 2 NH,(g) AH=-92. kJ In the second step, ammonia and oxygen react to form nitric acid and water: NH,(g) + 20,(g) - HNO,(g) + H,O(g) AH=-330. kJ Calculate the net change in enthalpy for the formation of one mole of nitric acid from nitrogen, hydrogen and oxygen from these reactions. Round your answer to the nearest kJ.

Q: 13) Carbon tetrachloride can be formed by reacting chlorine with methane: CH4 + 2 C2 - ca4 + 2 H2…

A: The Heat of Reaction, ΔHºrxn (also known and Enthalpy of Reaction) is the change in the enthalpy of…

Q: Methane (also known as natural gas) is combusted with oxygen to produce heat according to the…

A: Number of mol of CH4 required = Q/∆Hrxn Q =  m . Cs . (T2 - T1) Given that: m = 100.0 g Cs = 4.184…

Q: Write a balanced equation for the combustion of C3H8(g) (propane)-- i.e. its reaction with O2(g)…

A: The combustion reaction is shown as,

Q: 5.128 Calculate the standard enthalpy change for the fermentation process, in which glucose…

A: Enthalpy is defined as the heat content of the system. In order to calculate the standard enthalpy…

Q: Charcoal is primarily carbon. What mass of CO2CO2 is produced if you burn enough carbon (in the form…

A:

Q: The following thermochemical equation is for the reaction of iron(s) with hydrochloric acid(aq) to…

A: Given: Fe(s) + 2HCl(aq) FeCl2(s) + H2(g)     H = -7.40 kJ moles of Fe = massmolar mass…

Q: The standard enthalpies of combustion at 25°C of hydrogen gas, H2(g), n-butane – C4H10(g),  1-butene…

A:

Q: Butane, C4H10, is widely used as a fuel for disposable lighters. When one mole of butane is burned…

A:

Q: The value of AH° for the reaction below is 128.1 kJ CH ,OH U - Co, 2(8) + 2H. 2(8) How may kJ of…

A: Given chemical equation is  CH3OH(l) -----> CO2(g) + 2H2(g) Enthalpy change, ∆H° = 128.1 kJ  We…

Q: When 50.0 mL of 1.27 M of HCI(aq) is combined with 50.0 mL of 1.32 M of NaOH(aq) in a coffee-cup…

A: As temperature of the solution increases, thus heat is generated during this process.  Thus enthalpy…

Q: The reaction of hydrogen sulfide(g) with oxygen(g) to form water(g) and sulfur dioxide(g) proceeds…

A: Answer: In this question enthalpy of the given balanced reaction in which combustion of 2 mole H2S…

Q: 3 NaOH(aq) + H3PO4(aq) = Na3PO3(aq)+3H2O(l)          Change is H= -173.7kJ If 31.2 mL of 0.45 M…

A: Moles of sodium hydroxide taken = concentration of sodium hydroxide X volume of sodium hydroxide…

Q: When 0.0700 moles of metal "X" is allowed to completely react with 200 mL of aqueous HCI, the…

A: Given data,Moles of Metal=0.070molesVolume of HCl=200mL∆T=42.9-25=17.9oCHeat capacity of…

Q: During the calculation process, how must the following reaction and its ΔH°rxn be manipulated?…

A:

Q: In a constant-pressure calorimeter, 50.0 mL of 0.320 M Ba(OH), was added to 50.0 mL of 0.640 M HCI.…

A:

Q: Combustion of table sugar produces CO2 (g) and H2O( l). When 1.46 g table sugar is combusted in a…

A: a) The balanced chemical equation is,

Q: An aluminum saucepan weighing 750 g contains 500 g of water at 25 ° C. In this water, you boil 10 g…

A: Solution - According to the question - Given - steam is bubbled into the water in the aluminum pan,…

Q: When gasoline burns in a car engine, the heat released causes the products CO₂ and H₂O to expand,…

A: Given: Burning of gasoline in car engine releases heat and causes the product CO2 and H2O to expand.

Q: A bomb calorimeter can be used to measure the enthalpy of reaction for combustions, such as the…

A:

Q: When 2.85 g of HC7H5O2 (molar mass = 122.12 g/mol) was burned in a bomb calorimeter, the temperature…

A: Calculation of number of moles of benzoic acid Mass of benzoic acid = 2.85 g Molar mass of benzoic…

Q: Sodium carbonate is a white powder used in the manufacture of glass. When hydrochloric is added to a…

A:

Q: Hydrogen cyanide is used in the manufacture of clear plastics such as Plexiglas. It is prepared from…

A: From given  Initially we are finding steam produced in moles and then we are calculating q value as…

Q: When 1.911 grams of sucrose (Molar mass 342.3 g/mol) is burned in a bomb calorimeter, the…

A: Given that :  Mass of sucrose = 1.911 g Molar mass of sucrose = 342.3 g/mol Initial temperature =…

Q: Which one of the following is the equation for a standard formation reaction -- i.e., an equation…

A: Enthalpy of formation :- Change in enthalpy during the formation of a compound from its elemental…

Q: There are two steps in the usual industrial preparation of acrylic acid, the immediate precursor of…

A: The standard enthalpy of the reaction is the difference of the sum of standard enthalpy of formation…

Q: Hydrogen cyanide is used in the manufacture of clear plastics such as Plexiglas. It is prepared from…

A: In this question, we will determine the value of heat ( q ) in kJ unit.  You can see step by step…

Q: Nitrogen oxide (NO) has been found to be a key component in many biological processes. It also can…

A: The given is reaction for formation of NO2 NO(g) + ½O2(g) → NO2(g) ΔH = –57.0 kJ We are to find out…

Q: In a constant-pressure calorimeter, 55.0 mL of 0.300 M Ba(OH), was added to 55.0 mL of 0.600 M HCI.…

A: Given, Ba(OH)2 taking part in reaction = 55.0 mL of 0.300 M HCl taking part in reaction = 55.0 mL of…

Q: The amino acid glycine, C2H;NO2, is one of the compounds used by the body to make proteins. The…

A: Given: The reaction is as follows: C2H5NO2(s) + 9O2(g)---------->8CO2(g) + 10H2O(l)  + 2N2(g).…

Q: Given the following reactions N2 13 + O2 (g) → 2 NO 13) AHn = +178 kJ NO2 g NO g + 1/2 02 (g) AHren=…

A: From given two chemical equation we have to calculate the enthalpy change for the reaction : 4 NO…

Q: reaction for the fermentation of glucose is ... C6H12O6 (aq)à2CO2(g) + 2C2H5OH(aq) ΔHrxn = -67kJ…

A:

Q: Combustion of table sugar produces CO2(g) and H2O(l). When 1.46 g table sugar is combusted in a…

A: Given,  The mass of sucrose burnt = 1.46 g Heat (q) = 24 kJ. a.Assuming that table sugar is pure…

Q: Oxygen generators in some airplanes are based on the chemical reaction between sodium chlorate and…

A: Given mass of sodium chloride = 553 g  Molar mass of sodium chlorate = 106.44 g.mol-  Moles = given…

Q: Balance the following chemical equation, name the reactants and products, and calculate the enthalpy…

A: The equation is given as,

Q: Calculate the mass of glucose metabolized by a 58.0 kg person

A:

Q: 48.2 mL of a solution of HCl is combined with 110.7 mL of 1.35 M NaOH in a calorimeter. The reaction…

A: Given: Volume of HCl solution = 48.2 mL = 0.0482 L                               (Since 1 L = 1000…

Q: A bomb calorimeter can be used to measure the enthalpy of reaction for combustions, such as the…

A: Interpretation-  To determine the final temperature of the calorimeter when a bomb calorimeter can…

Q: The thermite reaction, used for welding iron, is the reaction of Fe3O4 with Al. 8 Al (s) + 3 Fe304…

A: Given: Thermite reaction used for welding iron. ∆H0= -3350 kJ Temperature= 3000°C  Mass of…

Q: When 50 mL of 0.400 M aqueous hydrochloric acid (HCI; Molar mass: 36.5 g/mol) is mixed with 50 mL of…

A:

Q: Given the following data: Conc. (M) Volume (mL) Tinitial (°C) Tfinal (°C) Solution NaOH 0.750 50.00…

A:

Q: How much heat (in kJ) evolves when 7.0 L of C2H2 (d= 1.0967 kg/m3) is mixed with a stoichiometric…

A: Number of moles = mass/molar mass  Molar mass of C2H2 = 26 g/mol

Q: Write a balanced equation for the combustion of C9H20(l) (nonane)-- i.e. its reaction with O2(g)…

A: A balanced chemical equation for a given reaction is defined as the chemical equation consisting of…

Q: What mass of benzene (C6H6, molar mass = 78.11 g/mol) is required to produce 1.5x10^3kJ of heat…

A: Number of mole of substance is calculated by dividing mass of substance to molar mass of it where…

Q: Part 3: Enthalpy of Neutralization HCl(aq) NaOH(aq) a. Formula of the acid b. Formula of the base c.…

A: Mass of calorimeter + acid = 7.1495 g Mass of empty calorimeter (A) = 2.175 g Mass of Acid solution…

Q: A bomb calorimeter can be used to measure the enthalpy of reaction for combustions, such as the…

A: Given: ΔHcombustion = –1958 kJ/mol mass of diborane = 0.411 g heat capacity (Ccalorimeter) = 7.854…

Q: There are two steps in the usual industrial preparation of acrylic acid, the immediate precursor of…

A:

Q: Iron can be extracted from the iron(III) oxide found in iron ores (such as haematite) via an…

A: Since Carbon is in excess so all the fe2o3 will be converted into Fe so using the stoichiometric…

Q: When methanol, CH, OH, is burned in the presence of oxygen gas, O,, a large amount of heat energy is…

A:

States of Matter

The substance that constitutes everything in the universe is known as matter. Matter comprises atoms which in turn are composed of electrons, protons, and neutrons. Different atoms combine together to give rise to molecules that act as a foundation for all kinds of substances. There are five states of matter based on their energies of attraction, namely solid, liquid, gases, plasma, and BEC (Bose-Einstein condensates). 

Chemical Reactions and Equations

When a chemical species is transformed into another chemical species it is said to have undergone a chemical reaction. It consists of breaking existing bonds and forming new bonds by changing the position of electrons. These reactions are best explained using a chemical equation.