Calcium carbonate, CaCO31s2, the principal compound in limestone, decomposes upon heating to CaO(s) and CO21g2. A sampleof CaCO3 is decomposed, and the carbon dioxide is collected in a 250-mL flask. After decomposition is complete, the gas has apressure of 1.3 atm at a temperature of 31 °C. How many moles of CO2 gas were generated?

Q: Here is the overall reaction in an automobile air bag: 20NAN (s) + 6S1O, (s) + 4KNO,(s) → 32N,(g) +…

A:

Q: If the atmospheric burden of CO2 increases by 27.0 Gt (gigatonnes, 1Gt= 1 x 1012kg) over a given…

A: Given:  Current CO2 concentration = 408.3 ppm Increase in CO2 atmospheric burden = 27 GT = 27 x 1012…

Q: 5. A 5L car tire is filled with N2 to a pressure of 4 atm at 18°C. (a) How many grams of N2 present…

A: Given  Volume  = 5 Liter  Pressure of N2  = 4 atm  Temperature ( T ) = 18 ℃…

Q: A mixture of solid calcium oxide, CaO, and solid barium oxide, BaO, weighing 5.107 g is added to…

A: The objective of the question is to-a) Calculate the moles of carbon dioxide consumed by the…

Q: 18. A 5.31 mol sample of O2(g) is placed in a 1.00 L flask at 100.0°C. What is the pressure (in atm)…

A: Given, moles, n = 5.31 mol Volume, V = 1 L Temperature = 100 oC = 373 K a = 1.35 L2.atm.mol-2 b =…

Q: gas was conducted at 47.2 °C. The Keq = 0.105

A: Mole can be defined as a standard unit for measuring large quantities of very small entities such as…

Q: 3. Calculate the theoretical volume yield (In mL) of oxygen gaš pr when 0.920 g of KCIO3 decomposes.…

A: The mass of reaction mixtures -  Trial 1 - 1.039 Trial 2 - 1.029

Q: The atmosphere slowly oxidizes hydrocarbons in a number of steps that eventually convert the…

A: At STP- 1 mole gas = 22.4 L   Calculating moles of each gas by using dimensional analysis- 155 mL…

Q: A sample contains 10.5 g N2 (MW = 28.02 g/mol), 6.5 g He (MW = 4.00 g/mol), and 34.6 g CO2 (MW =…

A: Given : Mass of N2 = 10.5 g Mass of He = 6.5 g Mass of CO2 = 34.6 g And total pressure of mixture =…

Q: The airbags that protect people in car crashes are inflated by the extremely rapid decomposition of…

A: Decomposition reaction is a reaction in which a single reactant decomposes to form two or more…

Q: 5. Three 1.00 flasks at 25.0 °C and 1 atm pressure contain: CH4 (flask A), CO2 (flask B) and NH3…

A: The number of moles of a gas depends on the temperate, pressure, and volume of the gas. It does not…

Q: Potassium chlorate decomposes when heated, giving oxy- gen and potassium chloride: 2 KCIO3(s) → 2…

A: Given information: Mass =87.6 g Pressure = 1.04 atm Temperature = 13.2 ℃

Q: BAT 10E. Flask A contains He, flask B contains O₂ and flask C contains Ne. All three closed flasks…

A: Given,Flask A contains 'He' gas.Flask B contains ' O2 ' gas.Flask C contains 'Ne' gastemperature =…

Q: 1. Write a balanced chemical equation, including physical state symbols, for the decomposition of…

A: The balanced chemical for the decomposition of calcium carbonate is as follows;

Q: Mixtures of helium and oxygen are used in scuba diving tanks to help prevent "the bends". For a…

A: According to ideal gas law, PV = nRT where P = pressure V = volume n = moles R = gas constant =…

Q: Which of the following is true about the kinetic energy (E) of the molecules of Ne(g) and the…

A: Concept: Gas particles are in continuous and random motion. The Collisions between gas particles are…

Q: Automobile air bags employ a chemical reaction involving the rapid decomposition of sodium azide…

A: 2NaN3 →2Na(s)+3N2(g) Molar Mass of NaN3= 65.021 g/mol Volume of gas at STP= 22.4L Standard…

Q: 6.157 Consider the Haber process: «N2(g) + 3H½(g) > 2NH3(g); AH° = -91.8 kJ 2NH3(g); AH° =-91.8 kJ…

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Q: Given that a bomb calorimeter has a volume of 1.5 L and a temperature of 25.00°C, what pressure of…

A: The chemical equation of combustion of sucrose is written as: C12H22O11 +12 O2→12CO2+11 H2O

Q: A sample of butane (C4H10) gas having a volume of 2.0 L at 25 °C and 1300 mm Hg was mixed with a…

A: PFA

Q: You are working with an artist who has been commissionedto make a sculpture for a big city in the…

A: With environmental exposure of the material, the appearance and mass of the material are indicators…

Q: What is the kinetic energy, in joules per mole (J/mol), of a sample of nitrogen molecules at 25.0…

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Q: 2. The atmospheric temperature at altitudes where jetliners fly is approximately -33°C. Calculate…

A: Answer:Kinetic energy of 1 nitrogen moleculeKinetic energy of 1 mole nitrogen moleculesHere:

Q: A 27.4-mL volume of HCl solution reacts completely with 59.0 mL of aqueous Na2CO3.  The volume of…

A: According to ideal gas law, PV = nRT where P = pressure of CO2 in atm = 725 / 760 = 0.954 atm…

Q: Isooctane (C8H18) is the primary component of gasoline, which burns according to the reaction below.…

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Q: 5.) What volume of Chlorine gas at a pressure of 1 atm and a temperature of 20 °C is required to…

A:

Q: If 8.42 x 10-2 moles of aluminum react with 1.77 x 10-2 moles of chlorine gas, how many moles of…

A:

Q: You have two flasks of equal volume. Flask A contains H₂ at 0°C and 1 atm pressure. Flask B contains…

A: The average kinetic energy of a molecule :  K =  3/ 2 kb  T . K= average kinetic energy kb =…

Q: Calculate the average kinetic energy, in J/mol, for a mole of He at -23.0 °C. Assume ideal gas…

A:

Q: If a liter of argon gas (Ar) is compared to a liter of neon gas (Ne), both at 75°C and two…

A: The given question discusses the comparison of average velocity, kinetic energy, number of atoms of…

Q: what is the average kinetic energy in j/mol for a mole of argon at 20.0C?

A:

Q: The airbags that protect people in car crashes are inflated by the extremely rapid decomposition of…

A:

Q: Assume that a room at sea level is filled with a gas of nitrogen molecules N2 in thermal equilibrium…

A: Given , Temperature =-10°C=(-10+273)K=263 Kh= 1.05×10-34 J.s

Q: 4.8 g of an inorganic metal oxide ore mainly contains 93% of Nickel (III) oxide which decomposes to…

A: The balanced equation is   2 Ni2O3 (s) -------> 4 Ni (aq) + 3 O2 (g) Mass of ore = 4.8 g Mass…

Q: Nhich list below is an allowable set of quantum numbers for an electron? mi m. 1 +1/2 -1 -2 b 2 -1…

A:

Q: A cylinder of volume 27.0 L is filled with 25.1 g of jobstium gas (MM = 72.21 g - mol-1)from the…

A: Given the volume of cylinder i.e. gas =27.0 Lnumber of moles of gas =0.348 moltemperature =326 Kwe…

Q: At 1.00 atm pressure and a temperature of 25°C, the volume of 1.0 g water is 1.0 mL. At the same…

A: At constant mass gases have very large volume compared to the liquid state of the same substance.

Q: Ammonium perchlorate (NH4ClO4) is a solid rocket fuel that was used in space shuttles. When heated…

A: Write a balanced chemical equation for the decomposition of NH4ClO4, assuming that only the…

Q: (a) A tank contains one mole of oxygen gas at a pressure of 6.30 atm and a temperature of 29.5°C.…

A: a) Given Conditions are as follows: Initial pressure, P1 = 6.30 atm Initial temperature, T1 = 29.5˚C…

Q: Automobile air bags employ a chemical reaction involving the rapid decomposition of sodium azide…

A:

Q: This reaction occurs at constant temperature and pressure. The container in which this reaction is…

A: The balanced reaction taking place is given as, => 2 H2 (g) + 1 CO (g) ------> 1 CH4O (g)…

Q: When the following reaction took place at 23.8 °C and a pressure of 758 torr, 3.90 L of O2(g) were…

A: Given, Note: 760 torr = 1 atm Pressure (P) = 758 torr = 0.997 atm Volume (V) = 3.90 L Temperature…

Q: o Argon mo lar entrapy when she gas Subjected 1o process an ideal gas. Finid the charge in is in…

A:

Q: The generic reaction occurs in a closed container: 2A(g) +B(g) → 2Ce) A reaction mixture initially…

A:

Mole Concept

Mole concept is a method to determine the amount of any substance that consists of some elemental particles using a grouping unit called ‘mole’. The mole concept enables one to handle the large amount of small elementary particles. The mole concept can be used in many calculations related to mole calculation, molar amount, mole ratio, and so on, which are significant in chemistry.