A 2.35 g2.35 g sample of an unknown gas at 29 ∘C29 ∘C and 1.05 atm1.05 atm is stored in a 2.25 L2.25 L flask. What is the density of the gas? What is the molar mass of the gas?

Q: If a sample of gas at 35.4℃ and 108.4kPa is heated until the pressure is 297.1kPa and the volume is…

A: PV=nRT is the ideal gas equation. Here , P= Pressure (in Pa) ; V = Volume (in m3) ; n= No. of moles…

Q: A cylinder, with a piston pressing down with a constant pressure, is filled with 2.10 moles of a gas…

A: Given:Initial Moles of gas = 2.10 Initial Volume  =  46.0 L Leaked Moles = 0.700…

Q: A 2.65 g2.65 g sample of an unknown gas at 73 ∘C73 ∘C and 1.00 atm1.00 atm is stored in a 2.75 L2.75…

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Q: A sample of gas with a temperature of 124K is manipulated so that its pressure is increased by a…

A: A sample of gas with a temperature of 124K is manipulated so that its pressure is increased by a…

Q: If 2.84 g Ar are added to 2.08 atm He in a 2.00 L cylinder at 27.0 °C, what is the total pressure of…

A: P( He) = 2.08 atm Using , ideal gas equation PV= nRT , we can calculate the pressure of Ar gas…

Q: At 30oC, a gas cylinder containing nitrogen has an internal volume and pressure of 58.5 L and 1.75 *…

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

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: 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…

A:

Q: 5.0 grams Ne and 5.0 grams Cl2 are mixed together in a 5.0 L flask at 298K. Calculate: 1) the moles…

A: Mass of Ne = 5 g Mass of Cl2 = 5 g Volume of flask = 5 L temperature = 298 K

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: What is the density of a gas with a molar mass of 163 g/mol at 25C and 1.00 atm?

A: Given information: Molar mass = 163 g/mol Temperature (T) = 25 °C Pressure (P) = 1.00 atm

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 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: An 8.00-g sample of a gas occupies 22.4 L at 2.00 atm and 273 K. What is the molar mass of the gas?

A: Given that -  Mass of the gas = 8.00 g  Volume of the gas = 22.4 L  Pressure of the gas = 2.00 atm…

Q: Calculate the molar mass of an unknown gas that has a mass of 4.55g, exerts a pressure of 2.55atm,…

A: We are given gas having the mass of 4.55 gram and  it exerts a pressure of 2.55 atm and occupies a…

Q: A gaseous mixture is made by combining 3.92 g Ar and 4.57 g Kr in an evacuated 2.50 L container at…

A:

Q: Calculate the density of Freon 12, CF2Cl2, at 30.0 °C and 0.954 atm.

A: The ideal equation for gas is given by,                                               PV = nRT…

Q: 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 the…

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Q: A sample of an unknown gas weighing 10.9 g occupies a 25.585 L container at a pressure of 0.694 atm…

A: Given a sample of gas,mass of gas =10.9 gvolume of gas =25.585 Lpressure of gas =0.694 atmand…

Q: The average molecular speed in a sample of He gas at a certain temperature is 1.37x10° m/s m/s at…

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Q: Under identical conditions, separate samples of O2 and an unknown gas were allowed to effuse through…

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Q: In alcohol fermentation, yeast converts glucose to ethanol and carbon dioxide: C6H12O6(s) →…

A:

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: A large flask with a volume of 936 mL is evacuated and found to have a mass of 134.66 g. It is then…

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Q: 7) 8.278 x 10-4 mole of an unidentified gaseous substance effuses through a tiny hole in 86.9 s.…

A: Given: Unidentified gaseous substance is 8.278××10-4 mole effuses in 86.9 s For identical conditions…

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: Consider the chemical reaction:…

A: Consider the chemical   reaction:…

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: 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: a sample of gas of mass 2.82g occupies a volume of 639mL at 27 degree celsiuse and 1.00 atm…

A: Given information: mass = 2.82 g volume = 639 mL  Temperature = 27oC = 27+273 = 300 K  Pressure =…

Q: What is the molecular weight of the gas?

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

Q: For a gas sample whose total pressure is 740 torr, what are the partial pressures if the moles of…

A:

Q: A 5.25g sample of gas occupies a volume of 1L and exerts a pressure of 1.074atm at -4 degree…

A: An ideal gas is represented by the following expression: PV = nRT    ............ (1) where P, V, n,…

Q: How many moles of gas are there in a 0.75 L balloon if the temperature of the balloon is 521 K and…

A: An ideal gas is the hypothetical gas composed of many randomly moving point particles that are not…

Q: Methanol, CH3OH, is produced industrially by the following reaction:…

A: Determined the ratio of the total volume of reactant to the final volume. Given a balanced chemical…

Q: At what temperature does 0.038665 moles of Ne in a 892.6 mL container exert a pressure of 0.767 atm?…

A: Use ideal gas law to find out the temperature. Convert the volume in liters. 892.6 mL = 0.8926 L

Q: What pressure does the gas exert if the temperature changes from T1 = 600. K to T1 = 300. K, while…

A: According to Gay-Lussac's law, at constant volume pressure increases, temperature increases.

Q: At 1.10 atm and 14.23 ∘C, a 2.15g sample of gas occupies a volume of 2.10×103 mL. Calculate the…

A: Given pressure = 1.10 atm volume = 2.10 × 103 ml Temperature = 14.23°C mass = 2.15 g

Q: Three gases (CO2, 02, and N) are trapped in individual bulbs of difterent volumes below. When the…

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Q: What is the molar mass of an unknown gas with a density of 1.90 g/L at 1.00 atm and 25.0 °C?…

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Q: A binary mixture of gases A and B contained 0.515 g of A (100.0 g/mol) at a total pressure of 1825…

A: We know that, PV = nRT  Given, pressure P = 1825 torr =  Volume V = 362.2 ml = 0.3622 L Temperature…

Q: In a 5.00L container at 25 degrees C, a mixture of gases contains 3.50g of CO, 8.56g of Cl2 and…

A: The partial pressure of any one gas in a mixture of two or more gases is calculated by using the…

Q: Suppose a sample of refrigerant gas consisting of a simple mixture of the gases C2HF5 and CH2F2 has…

A: Given: Density of mixture = 1.92 g/L. Pressure of mixture = 0.625 atm. Temperature = 31 oC And the…

Q: A 2.50 g sample of an unknown gas occupies 875 mL at 685 mm Hg and 35 C. What is the molar mass of…

A: To calculate the molar mass of the unknown gas first of all we calculate the number of moles of the…

Q: Calculate the mole fraction of each gas in a mixture of 43.6 g Xe and 36.8 g Kr. S

A: Mole fraction of a component is the ratio of number of moles of that component to the total number…

Q: A 3.65 g sample of an unknown gas at 61 ∘C and 1.00 atm is stored in a 2.05 L flask. What is the…

A:

Q: A sample of an ideal gas at 1.00 bar and a volume of 1.91 L1.91 L was placed in a weighted balloon…

A: According to the Boyle’s law, “at constant temperature and number of moles, the pressure of the gas…

Q: A 1.05 g sample of an unknown gas at 61 "C and 1.05 atm is stored in a 2.55 L flask. What is the…

A: Mass per unit volume is known as density. S.I unit of density is g/cm3 or kg/m3. Other units of…

Q: how many moles of chlorine gas at 120 degrees Celcius and 33.3 atm would occupy a vessel of 16 l?

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Q: What is the temperature inside of 3.0mL container when there are 0.56 moles of a gas at 0.75atm?

A:

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.