A chemical engineer uses CO2 in the production of polystyrene containers. Find the density of CO2 and the number of molecules of CO2 per liter  a. at STP, 0oC and 1 atm b. at room conditions, 25oC and 760 torr

Q: A gas at 569 mmHg and 44.0°C occupies a volume of 6.18 L. Calculate its volume at STP.

A: All matter can be classified as solid, liquid and gases mainly. In these physical states of matter,…

Q: Calculate the density of nitrogen dioxide gas at 765 Torr and 20oC. (d=gL^-1)

A: The density of the gas and formula weight calculated in below by using ideal gas equation. PV = nRT…

Q: A 6.0-L flask contains a mixture of methane (CH4), argon, and helium at 45oC and 1.75 atm. If the…

A: Given information, A 6.0-L flask contains a mixture of methane (CH4), argon, and helium at 45oC and…

Q: Consider the reaction:2 SO2( g) + O2( g) →2 SO3(s)(a) If 285.5 mL of SO2 is allowed to react with…

A: a) 2SO2(g)+O2(g)→2SO3(s)2SO2(g)+O2(g)→2SO3(s) For sulfur dioxide, 285.5 mL SO2×1 mol SO2/22400 mL…

Q: A 2.00 L reaction container at 25.0 °C contains CO2 (g) and O2 (g). The total pressure of the gases…

A: In this question, total volume of the container is to be determined on addition of 15.0 g of…

Q: Calculate the total volume of gas produced at 21.0 ∘C and 1.02 bar by the complete decomposition of…

A: Given: Temperature = 21°C = 21+273 K = 294 K Pressure = 1.02 bar Mass of ammonium carbonate = 11.9…

Q: Chlorofluorocarbons (CFC's) are gases that were formerly widely used in aerosols and refrigerators…

A: Given: Mass of CFC = 2.50 g. Temperature = 22 oC Pressure = 1.02 atm. And volume of flask = 500 mL =…

Q: What is the molarity of the cleaning solution formed when 10.0 L of ammonia gas at 33oC and 735 torr…

A: Given details, Initial volume (V1) = 10 L = 0.01 m3. Final volume (V2) = 0.750 L Temperature (T) =…

Q: Chlorofluorocarbons (CFC's) are gases that were formerly widely used in acrosols and refrigerators…

A: Given: Mass of CFC = 2.50 g. Temperature = 22 oC Pressure = 1.02 atm. And volume of flask = 500 mL =…

Q: 5. What volume will 20.0 g of argon occupy at STP? 6. A sample of dry gas weighing 2.31 grams is…

A: [5.]  m = 20.0 g  M = 39.948 g/mol  n = m/M = 20.0 g / 39.948 g/mol  = 0.5006 mole  At STP, T = 273…

Q: A sample of O2 with a pressure of 1.53 atm and a volume of 239 mL is allowed to react with excess NO…

A: The combined gas law is given by

Q: A gas mixture contains 1.25 g N2 and 0.85 g O2 in a 1.55 L con- tainer at 18 °C. Calculate the mole…

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Q: Dilute aqueous hydrogen peroxide is used as a bleaching agent and for disinfecting surfaces and…

A: Given: Volume of solution= 0.100L To find: Mass of hydrogen peroxide

Q: If an experimental reaction, 32.5 mL were collected of hydrogen gas at 32.5 degrees Celsius and…

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Q: A 1.00 L sample of dry gas at 16 °C and 744 mmHg contains 0.520 g N₂. What is the partial pressure…

A: Given that, Volume of the dry gas is 1.00 L. Temperature = 160C Total pressure = 744 mm Hg Mass of…

Q: Pantothenic acid is a vitamin. Using the Dumas method, you find that a sample weighing 61.6 mg gives…

A: Given information,       A sample weighing 61.6 mg gives 3.30 mL of nitrogen gas at 23°C and 785…

Q: 1. A sample of gas weighs 3.10 g and occupies a volume of 1,272 mL at 30 °C and 720 mm Hg. What is…

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

Q: A 6.0-L flask contains a mixture of methane (CH₄), argon,and helium at 45°C and 1.75 atm. If the…

A: Ideal gas equation:                                                                      PV=nRT…

Q: How many grams of CO2 are contained in a 10.0 L tank at 7.53 atm and 485 K?

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Q: A 3.95 g sample of an unknown gas at 69 °C and 1.00 atm is stored in a 1.75 L flask. What is the…

A: The ideal gas equation relates the pressure, volume, temperature, and number of moles of gases of a…

Q: b) The absolute temperature of a gas at which 6.79 X 10 ² moles occupies 164 mL at 893 torr. c) The…

A: Solution:      Idea gas equation shows a combined empirical relationship of volume,…

Q: Three glass bulbs, joined by closed stopcocks, have the following volumes and initial pressures of…

A:

Q: A sample of a certain gas has a volume of 452 mL at 711 mm Hg and 26 °C. What would be the volume of…

A: Given: Volume V1= 452 mL Pressure P1 = 711mmHg= 711/760= 0.935 atm Temperature T1 = 26oC= 26+ 273 =…

Q: An unknown amount of oxygen gas is mixed with 2.00 g of SO, at 0.00 °C in an 800.0 mL sealed gas…

A: Since you have posted a question with multiple sub-parts, we will solve first three subparts for…

Q: A sample of CO2 occupies a volume of 6.31 liters at 131.9 kPa. What pressure in kPa would the gas…

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Q: Three glass bulbs, joined by closed stopcocks, have the following volumes and initial pressures of…

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Q: 2. A 0.500 g impure sample of LINO; is heated, causing it to decompose according to the following…

A: Given temperature = 300 K. 1 atm = 760 mm Hg. The pressure of the dry gas = 760 – 26.7 =733.3 mm Hg.

Q: 1) At 1.35 atm and 4.33 ∘C, a 3.91 g sample of gas occupies a volume of 1930mL. Calculate the molar…

A: From idea gas law,we know PV=nRT  Where P = Pressure  V = Volume of gas n = number of moles of gas R…

Q: Pantothenic acid is a vitamin. Using the Dumas method, you find that a sample weighing 81.6 mg gives…

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Q: "Calculate the total pressure of mixture of 1.31g of nitrogen gas. 2.53g of hydrogen gas, and 3.26g…

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Q: Three glass bulbs, joined by closed stopcocks, have the following volumes and initial pressures of…

A:

Q: In a combustion reaction, what mass of oxygen gas is needed to react with 25.0 mL of C4H10 gas,…

A: Given :-  Volume of C4H10 gas at STP = 25.0 mL  To calculate :-  Mass of O2 (in grams)

Q: mixture of unreacted gas which consists of 21 g of nitrogen gas and 6 g of hydrogen gas is placed in…

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Q: A gas occupies 45.0 L at 2.00 atm pressure and 27°C. Calculate its volume at STP.

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

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Q: g/mol. The molecular weight of a gas that has a density of 4.1 g/L at STP is

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Q: A gas occupies a volume 2.51 L and 26°C is adjusted to a new volume of 1.21 L at standard…

A: Initial conditions  Volume, V1= 2.51 L Temp , T1= 26°C = 299.15 K Pressure,P1  = ? Final…

Q: A sample of CO2 occupies a volume of 14.87 liters at 140.5 kPa. What pressure in kPa would the gas…

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Q: 1. At temperature equal to 0 K, the volume of an ideal gas equal to zero. This is: 2. Calculate the…

A: 1. At temperature = 0 K, Volume of an ideal gas = 0 This is absolute zero.

Q: A 1.95 g sample of an unknown gas at 67 °C and 1.05 atm is stored in a 2.05 L flask. What is the…

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Q: What was the initial temperature in Celsius?

A: Since you have posted multiple questions, we are entitled to answer the first only. Please repost…

Q: Dinitrogen monoxide can be prepared by heating ammonium nitrate, which decomposes into dinitrogen…

A: At STP , Volume of 1 mol gas = 22.4 L  From this relation we can can convert the volume of gas into…

Q: The density of NO2 in a 4.50 L tank at 760 mmHg and 25 C is

A: Please find the attachment

Q: 2. A sample of gas at 245°C and a pressure of 2.5 atm occupies a volume of 12.3 L. What volume would…

A: Answer :-  2. 16.2 L  At STP the gas occupy = 16.2 L volume…

Q: Based on the ideal gas law, there is a simple equivalency that exists between the amount of gas and…

A: At standard temperature and pressure (STP; 273.15 K and 1 atm respectively), one mole of gas…

Q: Calculate the pressure of 12.0 grams of O2 gas with a volume of 775mls at a temperature of 35.0oC…

A: The pressure is to be calculated

Q: A sample of CO2 gas occupies a volume of 250 mL at 100 °C and 450 mm Hg pressure. What will be its…

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Q: A sample of nitrogen gas had a volume of 36.7 mL at 64°C and 752 mm Hg. What is the volume of this…

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Q: 2.15g gas occupies 7.50 x 102mL at STP.  What is molar mass of gas?

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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.