The Goodyear blimps, which frequently fly over sporting events, hold approximately 175,000 ft3 (or 4955448 L) of helium gas. If the gas is at 23°C and 1.0 atm, what mass of helium is in the blimp?

Q: At 0 degrees C, a 1.0-L flask contains 5.0×10−2 mol N2, 1.5×102 mg O2, and 5.0×1021 molecules of…

A: Given, volume of flask V =1.0 Ltemperature T =0°C =273.15 Knumber of moles of N2 =5.0×10-2 mol =0.05…

Q: mixture contains 10.0 g N2 amd 10.0 g of CO2 in a 2.55 L container at 25 degrees C.    - Calculate…

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Q: A gas mixture in a 1.55-L container at 298 K contains 10.0 g of Ne and 10.0 g of Ar. Calculate the…

A: Given: A gas mixture in a 1.55 L container at 298 k contains 10.0g of Ne and 10.0g of Ar. Calculate…

Q: If a gaseous mixture is made by combining 4.77 g Ar and 2.34 g Kr in an evacuated 2.50 L container…

A: Pi = Xi x P Where, Pi = partial pressure of gas i,             Xi = mole fraction of gas i…

Q: A certain laser uses a gas mixture consisting of 7.00 g HCl, 4.00 g H2, and 167 g of Ne. What…

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Q: A 3.35 g sample of an unknown gas at 23 C and 1.10 atm is stored in a 3.05 L flask. What is the…

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Q: A 2.55 g sample of an unknown gas at 31 ∘C and 1.05 atm is stored in a 2.85 L flask. What is the…

A: First the density is determined by using density formula as shown below,

Q: A sample of gas isolated from unrefined petroleum contains 90.0% CH4, 8.9% C2H6, and 1.1% C3H8 at a…

A: Given,  90.0% CH4, 8.9% C2H6, and 1.1% C3H8.Total pressure of 307.2 kPa.Partial pressure is…

Q: A 1.92 L flask is filled with 2.52 g of some gas (molar mass 42.100g/mol) at 23.1°C. A different…

A: Given: Volume , V = 1.92 L Temperature = 23.1°C = 296.25K No. Of moles gas= 2.52g/42.1gmol-1= 0.0598…

Q: A gas mixture contains each of the following gases at the indicated partial pressures N 2 ,216 torr;…

A: Partial pressure of N2 = 216 torr ...Or  because 1 atm = 760 torr  ...so,  = 216 torr × (1 atm / 760…

Q: A flask contains a mixture of two gases: NO2 and Ne. The flask holds 0.507 mol of NO2 and an unknown…

A: Dalton law of partial pressure is used to calculate the partial pressure  of any gas . it says that…

Q: When 101 g of KOH is added to a 3.9 L container of O3 at 25°C and a pressure of 66 atm, the…

A: The given reaction is: 5O3(g) + 2KOH(s) → 2KO3(s) + 5O2(g) + H2O(g) Determination of initial mol of…

Q: A mixture containing 0.765 mol He (g), 0.330 mol Ne (g), and 0.110 mol Ar (g) is confined in a…

A: (a)Add all the moles of gases present in 10.00 L vessel and find the total moles.

Q: At 25.0° C, a 10.00 L vessel is filled with 7.06 atm of Gas A and 7.89 atm of Gas B. What is the…

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Q: A mixture of xenon and carbon dioxide gases, in a 5.13 L flask at 31 °C, contains 14.1 grams of…

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Q: A 20.0 L container at 303 K holds a mixture of two gases with a total pressure of 5.00 atm. If there…

A: Given, Volume of container , V =20.0 L Temperature , T = 303 K Pressure, P = 5.00 atm moles of gas A…

Q: A 20.0L tank contains 0.225 kg of helium at 18 degrees celcius. The molar mass of helium is 4.00…

A: Given : Volume of tank = 20.0 L Mass of helium gas = 0.225 Kg = 225 g…

Q: gas mixture contains O 2 , N 2 , and Ar at partial pressures of 125, 175, and 225 mmHg,…

A: Interpretation: The partial pressure in millimeters of mercury for carbon dioxide gas when added to…

Q: Three 1.00-L flasks at 25°C and 725 torr contain the gases CH4 (flask A), CO2 (flask B), and C2H6…

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Q: At 535 mm Hg and 58.4 °C, a sample of carbon monoxide gas occupies a volume of 0.415 L. The gas is…

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Q: If a gaseous mixture is made by combining 2.17 g Ar and 2.55 g Kr in an evacuated 2.50 L container…

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Q: The hydrocarbon octane burns to give CO2 and water vapor. 2 CgH18(9) + 25 02(g) - 16 CO2(g) + 18…

A: The given data contains, mass = 0.084 g. Volume = 4.75 L. Temperature = 303.15 K.

Q: A chemist notices that a gas (measured to have a molar mass of 18.02 g/mol) diffuses approximately…

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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…

A: The molar mass of a chemical compound is defined as the mass of a sample of that compound divided by…

Q: In the reaction 2H₂ (g) +O₂ (g) = H₂ O₍₁₎ How many liters of oxygen gas at STP will be needed to…

A: The kinetic theory of gases stated that there are no forces of attraction between the particles of…

Q: If N, is added to a balloon that contains O, (partial pressure 400 mm Hg) and CO, (partial pressure…

A: 1- We will calculate the partial pressure of each gases after addition of N2 gas in a balloon that…

Q: For the equation below. if you start with 2.54 X 1023 molecules of C₂H6, what pressure (in atm) will…

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Q: in chemical analysis of a gas compound, it was observed that it contains 33.0% Silicon (Si) and…

A: Interpretation: The molecular formula of the compound is to be determined from the given…

Q: a gas weighs 4.25 g and has a volume of 956.0 mL at 665.0 torr and 35.0 °C. What is its molar mass?

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

Q: t The Goodyear blimps, which frequently fly over sporting Pvents, hold approximately 175,000 ft of…

A: Given,Volume (V) = 175,000 ft31ft3 = 28.3168 litresP = 1 atm

Q: 0.360 g of a diatomic gas occupies 125.0 mL at 23.0oC and 750. torr. What is the  molar mass of the…

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Q: If 4.27 g Ar are added to 3.96 atm He in a 2.00 L cylinder at 27.0 °C, what is the total pressure of…

A: Temperature = 27.0 °C = 27.0 + 273.15 =300.15 K Volume = 2.00 L Pressure of He = 3.96 atm Mass of Ar…

Q: A gas mixture in a 1.55-L container at 298 K contains 10.0 g of Neand 10.0 g of Ar. Calculate the…

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Q: cylindrical container with a movable piston initially holds 1.5 moles of gas at a pressure of 4.0…

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Q: 3.55 g sample of an unknown gas at 33 degrees Celcius and 1.10 atm is stored in a 2.55 L flask. What…

A: The density of the gas present in the flask can be calculated by diving its mass by volume.

Q: When sulfur dioxide gas reacts with oxygen gas, sulfur trioxide forms.  1. If 3.5 moles of sulfur…

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Q: A 1.65g of Al reacts with excess HCl and the liberated H2 is collected over water at 25 degrees…

A: 2Al (s) + 6HCl (aq) => 2AlCl3 (aq) + 3H2 (g) Mass of Al = 1.65 g   H2 gas collected ; Pressure =…

Q: At 25.0° C, a 10.00 L vessel is filled with 5.16 atm of Gas A and 7.89 atm of Gas B. What is the…

A: Answer:- This question is answered by using the simple concept of calculation of mole fraction using…

Q: A sample of 0.400 L Ne initially at 1.181 atm and 240.ºC and a 0.150 L sample of O2 initially at…

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

Q: A sample of fluorine gas occupies a volume of 1550 mL at 690 mm Hg and 155oC.  What is the mass of…

A: The question is based on the concept of ideal gas equation. we have to make use of ideal gas…

Q: What volume does a 15.0g sample of helium (He) gas at 25oC and 1.66 atm occupy?

A: Consider the given information is as follows; Mass of helium sample = 15.0 g Temperature = 25°C = 25…

Q: A mixture of gases contains 1.56 g of N2, 1.35 g of H2, and 3.61 g of NH3. If the total pressure of…

A: Using dalton's law of partial pressure. Total pressure = sum of partial pressures of all gases.

Q: 6) Hydrogen gas can be generated from the reaction between aluminum metal and hydrochloric acid: 2…

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Q: A mixture of He, Ne and Ar has a total pressure of 4.55atm and is found to contain 0.22mol He,…

A: Partial Pressure Total pressure of a system is the sum of pressure of all the individual gas.…

Q: What volume of hydrogen gas (in L) is produced when 0.243 moles of sodium reacts completely…

A: The question is based on reaction Stoichiometry & ideal gas equation. we have to calculate…

Q: Iron reacts with hydrochloric acid to produce iron (II) chloride and hydrogen gas: Fes) + HCl(ag)…

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Q: A 20.0 L container at 303 K holds a mixture of two gases with a total pressure of 5.00 atm. If there…

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Q: 10.63 A mixture containing 0.50 mol H,(g), 1.00 mol O,(g), and 3.50 mol N,(g) is confined in a…

A: As per the given data we haveno of moles of H2 (nH2)=0.5molno of moles of O2  (nO2)=1.00molno of…

Q: A mixture of neon and nitrogen gases, at a total pressure of 889 mm Hg, contains 3.54 grams of neon…

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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.