A 2.85-g sample of an unknown chlorofluorocarbon decomposes and produces 564 mL of chlorine gas at a pressure of 752 mmHg and a temperature of 298 K. What is the percent chlorine (by mass) in the unknown chlorofluorocarbon?

Q: Solid sodium azide (NaN3) reacts with Iron(III)oxide to produce solid sodium oxide, iron metal and…

A: The balanced chemical equation representing the reaction of sodium azide with iron (III) oxide can…

Q: The combustion of octane, C8H18, proceeds according to the reaction shown.…

A: Given :  2C8H18(l) + 25O2(g) →16CO2(g) + 18H2O(l)  No. of moles of C8H18 = 587 mol  Temperature =…

Q: 8. Consider the reaction of solid copper(I) sulfide with oxygen gas to produce solid copper(I) oxide…

A: A balanced chemical equation is one that contains an equal number of atoms on both sides of the…

Q: 3.0 dm of sulfur dioxide is reacted with 2.0 dm of oxygen according to the equation below. 2SO2(g) +…

A: Ideal gas equation is  PV = nRT  Under same conditions of Temperature and pressure  V ∝ n  Number of…

Q: A sample of xenon gas occupies a volume of 6.95L at 431K. If the pressure remains constant, at what…

A: Initial volume, V1 = 6.95 L Initial temperature, T1 = 431 K Final volume, V2 = 3.77 L Final…

Q: 50.0 mL of 6.0 M acetic acid reacts with 1.55 g magnesium. what volume of hydrogen gas will be…

A: Stoichiometry, the essential technique widely utilized for obtaining product's amount by relating…

Q: For the following reaction: 2H2O(g) + Co(s) ⟶ CoO2 (s) + 2H2 (g) What volume of H2 at a pressure of…

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Q: CH3OH can be synthesized by the following reaction. CO(g)+2H2(g)→CH3OH(g) What volume of H2 gas (in…

A: Given:Mass of CH3OH = 26.2 g.Temperature = 90 oC = 273 + 90 = 3363 KPressure = 752 mmHg = 0.9895…

Q: 8.00 gram mixture of copper (II) sulfide and iron (II) sulfide reacted with excess nitric acid and…

A: Given the mass of mixture = 8.00 g composition of mixture is copper (II) sulfide, CuS(s) and iron…

Q: A piece of dry ice (solid carbon dioxide) with a mass of 28.8 gsublimes (converts from solid to gas)…

A: According to ideal gas equation,  PV = nRT V = (nRT/P) n = moles = (given mass / molecular mass)

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: When 7.16 g of calcium metal completely reacts with excess water, what is the pressure, in atm, of…

A: Given Weight of calcium=7.16g Volume=2.1L Temperature=306 k To calculate pressure in atm

Q: How many moles of chlorine gas at 120. °C and 33.3 atm would occupy a vessel of 26.5 L?

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

Q: The combustion reaction of Ammonia plus oxygen produces NO2 gas and water vapor (gas). If the…

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Q: A 2.68 L container of oxygen gas at 27.9 °C is heated to 46.8 °C. Assuming that the volume of the…

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Q: A sample of carbon dioxide has a mass of 14.0 g and occupies 2.5 L at 400.0 K. What pressure does…

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Q: A sample of helium gas occupies a volume of 107.2 L at 247.5 K and 7.64 atm.  What will its pressure…

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Q: If a gas has a mass of 800.1 g and a volume fo 750 L at 34.9 deg C and 134.9 kPa, calculate the…

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Q: Consider the reaction:  MnO2 (s) + 2Cl-(Aq) + 4H+ (Aq)===> Mn2+ (Aq) + Cl2(g) + 2H2O(g)  a) how…

A: The combined gas legislation incorporates various gas laws such as the Boyle’s law, Charles' law,…

Q: The combustion of octane, C8H18, proceeds according to the reaction shown.   2 C8H18(l)+25…

A: The balanced Chemical equation for Combustion of Octane given in the question is - 2C8H18(l)+…

Q: The combustion of octane, C,H,8, proceeds according to the reaction shown. 2 C3H18(1) + 25 0,g) 16…

A: Number of moles of CO2 produced by combustion of 2 mol of octane = 16 mol Number of moles of CO2…

Q: Ammonia gas is produced by the reaction: N2(g) + 3H2(g) → 2NH3 (g). a.) How many liters of ammonia…

A: Given reaction is: N2(g) + 3H2(g) → 2NH3(g) To find: Amount of ammonia produced (in liters) from…

Q: A sample of 140.1 g of a noble gas occupies 40.75 L at 758 mm Hg and 23.0 °C. What is its molar mass

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Q: 5. Oxygen gas reacts with powdered solid aluminum to produce solid aluminum oxide. What volume of…

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Q: For the following Reaction: 2H2O(g)+Co(s)=CoO2(s) +2H2(g) what volume of H2 at a pressure of 755…

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Q: A chemical reaction occurring in a cylinder equipped with a movable piston produces 0.621 mol of a…

A: Concept: The volume of gas depends on the temperature, pressure, and the mol of gas. The volume of…

Q: CH3OH can be synthesized by the following reaction.CO(g)+2H2(g)→CH3OH(g) What volume of H2 gas (in…

A: According to the question, methanol is prepared by the given reaction.From this reaction, 2 moles of…

Q: 73. CH3OH can be synthesized by the reaction: CH3OH(g) CO(g) + 2 H2(g) What volume of H2 gas (in L),…

A: This question can be solved using the law of multiple proportions and ideal gas law. Here we are…

Q: The combustion of octane, C8H18, proceeds according to the reaction shown.…

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Q: [4] Hydrogen cyanide is prepared by the reaction: 2NH3(g) + 2CH.(g) + 30:(g) → 2HCN(g) + 6H;O(1I)…

A: As temperature and pressure are same for each gas .it can be said that 2 litre NH3 ,2 litre CH4 and…

Q: A 25.0 L container at 23.0 °C contains 60.54 g Ne and 167.6 g Kr. What is the total pressure of the…

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Q: The combustion of octane, C8H18, proceeds according to the reaction shown.…

A: Combustion reaction is a type of chemical reaction in which a given hydrocarbon is burnt in the…

Q: Hydrogen can be made in the by the following equation: C(s) + H2O(g)  H2(g) + CO(g) If you begin…

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Q: 233 mL nitrogen gas reacts with 583 mL hydrogen gas. Both gases are at the same temperature and…

A: It is given that 233 mL of nitrogen is reacting with 583 mL of hydrogen gas at the same temperature…

Q: A 458.8-ml sample of helium exertsa pressure of 668.8 torr at 25.9 °C. At what temperature in °C…

A: Gases expand supplying temperature. Particles of gases have weak binding forces. Gas particles are…

Q: A chemical reaction occurring in a cylinder equipped with a moveable piston produces 0.641 mol of a…

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Q: 10) Iron nail rusts when exposed to oxygen.4Fe(s) + 3 O2(g)2 Fe2O3(s) a)What volume of oxygen gasat…

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Q: Consider the reaction of NO2  If 23.8L of O2(g), measured at 35oC and 632mmHg is allowed to react…

A: Using Ideal gas law we can determine how many moles of O2 present in the reaction. Using…

Q: A sample of helium gas has a volume of 3.24 L at 25°C. What volume will it occupy at 286K if the…

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Q: 2. There is 1250. cm³ of chlorine gas at 25°C and 90,000 Pascals, what volume will the same gas…

A: Combined gas equation is the combination of Boyle's law, Charles law and Gay lussacs law.

Q: If water is added to Magnesium Nitride, ammonia gas is produced when the mixture is heated. Mg3N2(s)…

A: Given :-  Mg3N2(s) + H2O(l) → MgO(s) + NH3(g)  mass of Mg3N2 = 13.6 g  Temperature = 35°C =…

Q: 2. A 0.0758 gram sample of aluminum metal was reacted with dilute sulfuric acid and the hydrogen…

A: As per the given data,Given mass of aluminum metal = 0.0758 gMolar mass of aluminum metal = 26.9815…

Q: A 2.50 L volume of hydrogen measured at -196 is warmed to 100. Calculate the volume of the gas at…

A: Solution - According to the question - Given - Charles law - Charles's law is an experimental gas…

Q: Aluminum reacts with chlorine gas to form aluminum chloride. 2Al(s)+3Cl2(g)→2AlCl3(s) What minimum…

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Q: The combustion of octane, C8H18, proceeds according to the reaction shown.…

A: Here we are required to find the volume of carbon dioxide is formed when 611 mol of octane is…

Q: CH3OH can be synthesized by the following reaction. CO(g)+2H2(g)→CH3OH(g) What volume of H2 gas (in…

A: Given, Methanol is 23.0 gT = 273 + 90 = 363 K.Pressure = 758 mmHgMolar mass of methanol is = 32 g/…

Q: Nitrogen and hydrogen gases react to form ammonia gas via the reaction  N2(g) + 3H2(g)--->…

A: Given balanced chemical reaction: N2(g) + 3H2(g)  → 2NH3(g)

Q: O2 is prepared by decomposing calcium chlorate (Ca(ClO3)2) and collecting 255 ml sample over water…

A: The balanced chemical equation that depicts the decomposition of calcium chlorate can be written as:…

Q: A 19.50 g sample of a gas occupies a volume of 24.8 L at 22.7ºC and 748.3 mmHg.  What is its…

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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.