A. At STP, one mole of uranium hexafluoride (UF6, MW: 352 amu), the gas used in uranium enrichment programs, occupies a volume of 352 L. B.  If two gas samples have the same temperature, volume, and pressure, then both contain the same number of molecules. a. Both are incorrect b. Both are correct c. A is correct, B is incorrect d. B is correct, A is incorrect

Q: 1. a) Consider the following balanced chemical equation: 2AI(s) + 3C12(g) 2AIC13(s) Determine the…

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Q: A 1.9 mol sample of gas in a rigid flask at 21°C and 697 mm Hg is opened to the atmosphere and more…

A: Given, Initially, moles (ni) = 1.9 mol Pressure (Pi) = 697 mmHg Temperature (Ti) = 21°C = (21 +…

Q: ses at STP (273 K and 1 atm pressure), one mole occuples a volume of 22.4 L. Wh ne will the…

A: 1 mole of any gas at STP contains a volume of 22.4 L.

Q: 1. Sodium carbonate (2.620 g) is completely reacted with excess hydrochloric acid in a 1.00-L…

A: Since you have posted multiple questions, we are entitled to answer the first only. Given: Mass of…

Q: MN %24 A certain mass of nitrogen gas occupies a volume of 1.56 L at a pressure of 6.81 atm. At what…

A: Using the relation of P1V1= P2V2 ,  We can find the final pressure at which gas expand.

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A: Given: Initial volume, V1 = 39.0 L Initial Temperature, T1 = 29.0°C Final Volume, V2 = 19.0 L

Q: An unknown gaseous hydrocarbon consists of 85.63% carbon by mass.  A 0.959-g sample of the gas…

A: The compound contains only Carbon and Hydrogen atoms.Determine empirical formula of the hydrocarbon:

Q: Considering the following reaction:                   2H2 (g) + O2 (g) → 2H2O (l)   If 5.32 g of…

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Q: References Use the References to access important values if needed for this question. A 1.97 gram…

A: Given, Mass of sample = 1.97g. Pressure = 692mmHg = 0.911atm. Volume = 1.15L. Temperature = 56oC =…

Q: Among the "Greenhouse Gases" carbon dioxide is the one that contributes the most. If 110 g of this…

A: Mass of CO2 = 110 g Temperature = 177◦ C or 450.15 K Volume = 5 L

Q: Two (2.00) moles of a gas at 18°C occupies a volume of 5.00 L. a. What is the pressure of this gas…

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Q: unknown. a. Gas Law: Charles Solve for the Unknown: 295 425 (22+273)K 5.34atm. Gas Law: Boyle's Law…

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Q: The combustion of octane, C,H2, proceeds according to the reaction shown. 18 2 C3H13(1) + 25 0,(g) -…

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Q: Bree Serif 26 6. 4 3 A gas at 25°C has a volume of 335 mL and a pressure of 1.01 atm. If we increase…

A: Given data,  Initial volume of a gas(V1) = 335 mL = (335 ÷ 1000) L = 0.335 L  Initial pressure of a…

Q: 23. Which equation is an invalid representation of the combined gas law? Assume that T1 and T2 are…

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Q: a mixture of cyclopropane gas and oxygen is used as an anesthetic, cyclopropane contains 85.7%C, and…

A: Given information: T = 50.0oC = 273 + 50 = 323 K P = 0.984 atm Mass = 1.56 g V = 1 L 85.7% of C and…

Q: 00 %24 Ce w/ 6 & 6. V 5. IIO 4. 3. 23 2 BA%252F%252FIms.mheduca mol of 3.5 L and a pressure of 190…

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Q: A. Calculate the mass in g, of 1380 mL of CH4 at STP. B. The density of a sample of gas is 1.00 g/L…

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

A: The partial pressure of O2, PO2, and the number of moles of O2 is calculated as shown below.…

Q: 11) How many moles of O2 would occupy 5L at 25°Celcius and 1.5atm? a) 0.306 b) 0.979 c) 2.85 d) 3.26

A: The ideal gas law is given as- PV= nRT where, V = volume of gas. T = temperature of the gas. P =…

Q: Oxygen is a product of the decomposition of mercury(II) oxide as shown below. 2 HgO(s) → 2 Hg(ℓ) +…

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Q: 9. What is the mass of the solid NH4Cl formed when 73.0 g of NH3(g) are mixed with an equal mass of…

A: Observing the given reaction shows that 1mole of NH3 reacts with 1 mole of HCl and forms 1 mole of…

Q: Gaseous methane (CH,) reacts with gaseous oxygen gas (O,) to produce gaseous carbon dioxide and…

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Q: 30.0

A: Dear student this question is related to molar mass concept.

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Q: What is the mass of the solid NH4Cl formed when 77.0 g of NH3 is mixed with an equal mass of HCl?…

A: Calculate the number of moles of ammonia and hydrogen chloride gas. The molar mass of ammonia is 17…

Q: 1. Has the greatest number of atoms a) 6.0 moles CO b) 3.0 moles SO, c) 4.0 mol NH; d) 4.0 moles CO,…

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Q: 00 010 O 00 ONO 00 omo O 040 V= 7L T= 100K P= ? V= 7L V=7L T= 500K P= ? V= 7L T= 700K T= 300K P= ?…

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Q: A student collects a 505 cm? sample of hydrogen gas at 30°C and 3 atm of pressure. How much space…

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Q: Automobile air bags use the decomposition of sodium azide as their source of gas for rapid…

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Q: ) Calcium hydride (CaH2) reacts with water to form hydrogen gas: CaH2 (s) + 2H2O (I) ---> Ca(OH)2…

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Q: 50. In the lab, students generated and collected hydrogen according to the following equation: Mg(s)…

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Q: What volume does 1.5 moles of hydrogen gas occupy at room temperature and ?pressure A 24 dm3 B 36…

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Q: Oxygen was discovered by decomposing mercury (II) oxide. HgO(s) --> Hg (l) + O2(g) What volume of…

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Q: What is the most nearly the combined volume of 1.0g of hydrogen gas and 7.0g of helium gas when…

A: The volume of a gas depends on the number of moles of gas, temperature, and pressure. The…

Q: A student collects a 505 cm sample of hydrogen gas at 30°C and 3 atm of pressure. How much space…

A: Option (C) 1731

Q: What volume of water vapor gas would be produced from the combustion of 570.89 grams of propane…

A: Limiting reactant :- A reactant which is present in lesser number of moles than required as per…

Q: Evan H 3 Wing Consider the following unbalanced chemical equation: (501) Cu2 S(s) + O2(9) → Cu, O(s)…

A: The balanced equation is  2Cu2S + 3O2  →  2Cu2O + 2SO2. Then we calculate the moles of respective…

Q: Gaseous iodine pentafluoride, IFs, can be prepared by the reaction of solid iodine and gaseous…

A: We are given the following reaction:  I2(s)+5F2(g)------------>2IF5(g). The volume of flask, (V)…

Q: 4. A chemist mixes 25.0 ml of fluorine gas with 15.5 mL of chlorine gas at 35.5 °C and 726 mmHg to…

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Q: 29. A 275 mL sample of gas is kept at 25°C. What volume will the gas occupy at 100.°C? 30. A 575 mL…

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Q: 26. Consider the following balanced reaction: (- 2C.H10 + 1302→ 8CO2 + 1OH2O Substance CH30 O2 CO2…

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Q: A medical grade diatomic gas Z (1000 grams) behaves non-ideally and must be kept at a temperature of…

A: Given data,Mass of Z=1000gTemperature=22oC=22+273=295 KVolume=75000 cm3=75 La=1.25 L2 atm…

Q: At a temperature of 25 degrees Celsius and 740 atmospheres of pressure, 1.50 liters of H2S gas is…

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Q: 4NH3 + 5O2 --> 4NO +6H2O   (a) How many liters of oxygen are required to react with 3.3 L NH3?…

A: Recall the given reaction            4NH3+5O2→4NO+6H2OAccording to stoichiometry of reaction4 moles…

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Q: Self-contained self-rescue breathing devices, like the one in the figure below, convert CO2 into O2…

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Q: Find the mistake. Astudent calculated their answer to a gas law problem as shown in the image below…

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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.