Calcium carbonate, CaCO3(s), the principal compound in limestone, decomposes upon heating to CaO(s) and CO2(g). 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: What volume of carbon dioxide is produced when 49.0 g of calcium carbonate reacts completely…

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Q: A combustion reaction involving 628.0 g n-butanol (C,H100) occurs at 345.0 °C and 15.2 atm. What…

A: Given :-  Amount of butanol = 628.0 g  Temperature = 345.0 °C  Pressure = 15.2 atm  To calculate :-…

Q: How many grams of iron are needed to completely consume 49.5 L of gas according to the following…

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Q: Calcium carbonate, CaCO31s2, the principal compound in limestone, decomposes upon heating to CaO(s)…

A: Given, P = 1.3 atm V = 250 mL T = 310C

Q: Consider the following chemical reaction: C(s)+H2O(g)→CO(g)+H2(g) How many liters of hydrogen gas is…

A: Given information,

Q: A car engine it is powered by the burning of octane (C8H18) with oxygen (O2). The combustion…

A: Given that the combustion reaction of octane (C8H18) with oxygen (O2) form carbon dioxide (CO2) and…

Q: How many moles of nitrogen monoxide are required to react completely with 63.5 L of hydrogen gas…

A: The equation is :- Nitrogen Monoxide(g) + Hydrogen(g) ----------------> Nitrogen(g) + Water(l)…

Q: Each of three identical 15.0-L gas cylinders contains 7.50 mol of gas at 295 K. Cylinder A contains…

A: According to kinetic molecular theory of gases, the gas molecules are in continuous random motion…

Q: Methanol, CH3OH, is produced industrially by the following reaction, using a copper catalyst 300 *C,…

A:

Q: 9. A combustion reaction involving 628.0 g n-butanol (C,H100) occurs at 345.0 °C and 15.2 atm. What…

A: Ideal Gas Law :-  PV = nRT  P is the pressure of gas  V is the volume occupied by gas n is the…

Q: An ideal gas is allowed to expand from 7.20 L to 39.6 L at constant temperature. By what factor does…

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Q: Before a reaction, two gases share a container at a temperatureof 200 K. After the reaction, the…

A: Given that : Initial temperature = 200K Final temperature = 400K Both volume and pressure are…

Q: When sodium chlorate (NaClO3) is heated, it decomposes into sodium chloride andoxygen gas. A student…

A: Given: V= 400 ml P = 0.931 atm T= 25 +273 = 298 K We have to calculate grams of  sodium chlorate? PV…

Q: Suppose a 185 gram sample of hydrogen reacts as follows: 2 NO2(g) + 7 H2(g) → 2 NH3 (g) + 4 H2O(g)…

A: The balanced reaction taking place is given as, => Given: Mass of H2 reacting = 185 g. Volume of…

Q: What volume of oxygen gas is produced

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Q: If 3.47 g Ar are added to 4.74 atm He in a 2.00 L cylinder at 27.0 °C, what is the total pressure of…

A: The pressure exerted by Ar is, PV = nRTP = nRTV ......(1) No. of moles of Argon = 3.47g/(40gmol-1) =…

Q: 4. The decomposition of 30.354 g of potassium chlorate yields solid potassium chloride and oxygen…

A: 2KClO3 → 2KCl (s) + 3O2Mass of KClO3= 30.354gT= 27.05°C   = (27.05+273.15)K     = 300.2KP= 1.075…

Q: A 2.85-g sample of an unknown chlorofluorocarbon decomposes and produces 564 mL of chlorine gas at a…

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Q: 7. 54.50 mol gas has V= .250L, and P= 14.15 atm. What is the Celsius temperature?

A: No of moles of gas = n = 54.50 moleVolume = 0.250 LPressure = 14.15 atmR = 0.0821 L atm K-1 mole-1T…

Q: In alcohol fermentation, yeast converts glucose to ethanol and carbon dioxide: СоН12059) — 2СH,ОН) +…

A: In chemistry, there are many ways to check the deviation of experimental data from the accurate…

Q: A sample of limestone (calcium carbonate, CaCO3) isheated at 950 K until it is completely converted…

A: Given, 8.47 kg of solid Ca(OH)2 T = 950 K P= 0.976atm

Q: A gas mixture contains He, Ne, and H2S at partial pressures of 125, 175, and 225 mm Hg,…

A: Interpretation -  To determine the partial pressure in the milliliters of mercury of Ne when a…

Q: Which two variables in the ideal gas law are directly proportional with volume? PV = nRT O…

A: According to Charles law - For a definite mass of a ideal gas , Volume is directly proportional to…

Q: What mass of potassium nitrate is needed to generate 207.0 Lof gas, composed of 111.0 Lof N2 and…

A: Given: Volume of N2 = 111.0 L Volume of O2 =96.0 L Pressure = 0.720 atm Temperature = 293 K

Q: Butane, C4H10, is used as fuel for cigarette lighters.  If you have 156 mL of butane at 747 mmHg and…

A: Applying formula  PV = nRT where P= pressure, V= volume , n= no. of moles , R = gas constant and T=…

Q: Consider three 1-L flasks at STP. Flask A contains NH3 gas, flask B contains NO­2 gas, and flask C…

A: The kinetic molecular theory seems to be a basic but useful framework for explaining ideal gas…

Q: How many grams of iron are needed to completely consume 6.52 L of oxygen gas according to the…

A:

Q: If 3.87 g Ar are added to 2.64 atm He in a 2.00 L cylinder at 27.0 °C, what is the total pressure of…

A: The number of moles of argon is calculated as follow 1 mole of argon = 39.95 g X mole of argon =…

Q: What volume of oxygen gas is produced when 29.4 g of mercury(II) oxide reacts completely according…

A: The given chemical equation is: 2 HgO (s) → 2 Hg (l) + O2 (g) Given mass of HgO = 29.4 g  Molar mass…

Q: The following reaction is used to generate hydrogen gas in the laboratory. If 243 mL of gas is…

A: First determine the moles of hydrogen produced from given reaction under given conditions.…

Q: You are given two containers, each with the same number of moles but of two different gases.  After…

A: The two gases can be differentiated by their specific heat capacity.

Q: Oxygen gas can be prepared by heating potassium chlorate according to the following equation:…

A: The given reaction is shown below.

Q: Consider the reaction of magnesium metal with hydrochloric acid to produce magnesium chloride and…

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Q: A sample of O, with a pressure of 1.31 atm and a volume of 243 mL is allowed to react with excess…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: For many purposes we can treat nitrogen (N.) as an ideal gas at temperatures above its boling peint…

A: Given: Initial pressure = 0.80 kPa Initial temperature = -21°C         Or initial…

Q: Small quantities of hydrogen gas can be prepared in the laboratory by the addition of aqueous…

A: Given reaction is: Zn(s)  +  2HCl(aq)  →  ZnCl2(aq)  +  H2(g) Volume of H2  gas collected = 240 mL…

Q: Consider the following chemical reaction: C(s)+H2O(g)→CO(g)+H2(g) How many liters of hydrogen gas…

A: C + H2O .....> CO + H2 Moles of C = 1.10 mol  P of H2 = 1.0atm T = 316K

Q: How many moles of hydrogen sulfide are required to react completely with 84.3 L of oxygen gas…

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Q: How many grams of iron are needed to completely consume 11.7 L of oxygen gas according to the…

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Q: A 4.00-g sample of a mixture of CaO and BaO is placed in a1.00-L vessel containing CO2 gas at a…

A: First we have to calculate the reacted pressure of CO2 gas in the given reaction:- The initial…

Q: When sodium chlorate (NaClO3) is heated, it decomposes into sodium chloride and oxygen gas. A…

A: Given Sodium Chlorate decomposes into sodium chloride and oxygen gas. Volume of gas= 400.0 mL…

Q: If 3.23 g Ar are added to 4.22 atm He in a 2.00 L cylinder at 27.0 °C, what is the total pressure of…

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Q: If 1.79 g Ar are added to 1.18 atm He in a 2.00 L cylinder at 27.0 °C, what is the total pressure of…

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Q: Hydrogen and Nitrogen gas react to form ammonia according to the following equation: 3H2 (g) + N2…

A: The number of moles for a given chemical species refers to the ratio of mass of the species to that…

Q: A flask at room temperature contains exactly equal amounts (in moles) of nitrogen and xenon.a. Which…

A: a) Both of the two gases have the same kinetic energy in the container. Thus they exert the same…

Q: How many grams of iron are needed to completely consume 8.87 L of chlorine gas according to the…

A: Given :-  Iron(s) + chlorine(g) →iron(III)chloride  Volume of Chlorine gas = 8.87 L  Temperature =…

Q: How many grams of calcium carbonate are needed to produce 9.28 L of carbon dioxide according to the…

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Q: How many grams of iron are needed to completely consume 36.4 L of chlorine gas according to the…

A: The chemical reaction :  Iron(s) + chlorine (g) ---> iron(III) chloride (s)  Volume of chlorine…

Q: How many grams of iron are needed to completely consume 3.15 L of oxygen gas according to the…

A: Volume of Oxygen = 3.15 L Temperature = 25 oC = 298 K Pressure = 1 atm The reaction is given as, 2…

Q: F8.og offluorine aas and 5.0g of neon gas are injecied in to a 1.8 L vessel at a temperature of 59…

A: Use the ideal gas equation,  PV=nRT where, P is the pressure that gas exerted on the walls of the…

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.