The graph below shows the distribution of molecular velocities of four gases, NH3, O2, CO2 and Xe, all at the same temperature. Which curve represents Xe? Velocity v (m/s) O B O D Fracton of malecules

Q: If a gaseous mixture is made by combining 2.15 g Ar and 3.13 g Kr in an evacuated 2.50 L container…

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Q: When gaseous F₂ and solid I₂ are heated to high tempera-tures, the I₂ sublimes and gaseous iodine…

A: Given   The pressure of fluorine gas is 350 torr. The mass of solid iodine is 2.50 g. The volume of…

Q: 2. A sample of He gas effused 5.3 times faster than an unknown gas, under the same conditions.…

A: Given: The Helium gas with atomic  mass of = 4 u.

Q: A sealed container holding 0.0255 L0.0255 L of an ideal gas at 0.987 atm0.987 atm and 69 ∘C69⁢ ∘C is…

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Q: A mixture of gases contains 313 torr N2, 275 torr O2, and 286 torr Ar. What is the total pressure of…

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Q: A sample of gas at 1044.8 mmHg and 21.48°C is heated to a temperature of 109.53°C. What is the new…

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Q: What is the ratio of rms (root-mean-square) molecular speed of H2 gas (2 g/mol) at 0°C to rms…

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Q: A mixture of four gases is placed in the same container, maintained at a set temperature and…

A: The root mean square formula is, Vrms = √3RT ÷ √M where, R = gas constant, T = temperature and M =…

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: Show the calculation of the volume of acetic acid CH3COOH gas produced by the reaction of 15.2 grams…

A: Given data : Pressure = 1.2 atm , T = 25°C = 298 K , mass of O2 = 15.2 gm , R = 0.0821 L.atm/mol.K

Q: PV = nRT N2(g) + 3H2(g) --> 2NH3(g) A steel tank is filled at constant temperature with 428 torr of…

A: Given: PN2​​=428torr;PH2​​=515torrN2(g)​+3H2(g)​→2NH3(g)​Step 1: Solve for the pressure of NH3…

Q: A gas made up of homonuclear diatomic molecules escapes through a pinhole 0.732 times as fast as F₂…

A: molar mass of F2(M2) = 37.997 g/molmolar mass of X(M1) =?

Q: A sample of a breathing mixture for divers contained 34.3% helium, He; 51.7% nitrogen, N2; and 14.0%…

A: We have to calculate the density of the mixture.

Q: Place the following gases in order of increasing average rms speed at 25°C. 1 2 3 4 5 сл 1 Ne SO2…

A: The root mean square (RMS) velocity of gas refers to the average velocity of gas molecules in a…

Q: of total mass 80g. 14% of the total mass is nitrogen. The nitrogen is occupying a volume of 0.995…

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Q: A mixture of gases contains 319 torr N₂, 270 torr O₂, and 287 torr Ar. What is the total pressure of…

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Q: When 15.0 g of fluorite (CaF₂) reacts with excess sulfuricacid, hydrogen fluoride gas is collected…

A: The number of moles of HF which is produced when CaF2 reacts with excess sulfuric acid is calculated…

Q: molecules have an 25°C?

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Q: What is the pressure (in millimeters of mercury) inside a container of a gas connected to an…

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Q: What is the ratio of rms (root-mean-square) molecular speed of H2 gas (2 g/mol) at 0°C to rms…

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Q: A student adds 4.00 g of dry ice (solid CO₂) to an empty bal- loon. What will be the volume of the…

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Q: Which of the following gases would have the lowest average velocity at 400 K? O CO₂ O SO₂ O Cl₂ O Xe…

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Q: A chemist combines 11.8 L N2 gas, 33.9 L O2 gas, and 16.5 L Br2 gas in a reaction vessel at STP. The…

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

Q: A gas composed of chlorine and oxygen has a density of 2.875 g/L at 751.5 mm Hg and 11°C. What is…

A: The relationship between density , pressure , temperature and molar mass of the gas is given by the…

Q: An unknown perfect gas was detected in the breath of a ferret. It appears to be made entirely of…

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

A: Bulb A: 100. mL of H2S(g) at 190. torrBulb B: 200. mL of He(g) at 1.00 atmBulb C: 500. mL of N2 (g)…

Q: A cylinder whose volume is 150 cm3 and contains 64 gm of O2 gas. What is the pressure inside the…

A: To solve this problem we will use Ideal gas equation which is given as  PV = nRT  Where ,  P =…

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

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Q: A sample of nitrogen gas is 1.05Lat –58oCand 1 atm. What is the gasvolume when it is heated to…

A: Gien that: P1 = 1 atm, V1 = 1.05 L, T1 = -58 oC = 215 K P2 = P1  = 1 atm, V2 =? , T2 = 100 oC = 373…

Q: A container holds SO₂ gas at a temperature of 60.0°C. Calculate the quantities below in the…

A: Formulae used: Vmp = 2RTM Eavg=32RT Vrms = 3RTM

Q: temperature T for gases better than the Ideal Gas Law does: p+₁²/²2 (₁ (V-nb)=nRT The parameters a…

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Q: A glass containewas initially charged with 2.00 moles of a gas sample at 3.75 atm and 21.7°C. Some…

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Q: What volume of water vapor in liters could be generated at 1.053 atm and 443. K by the combustion of…

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Q: Calculate the rms speed of CO molecules at 315 K Calculate the rms speed of Cl2 molecules at 315 K…

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Q: Consider the following reaction: 2H2O(l) -> 2H2(g) + O2(g)…

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Q: A mixture of nitrogen and oxygen gases, at a total pressure of 639 mm Hg, contains 6.04 grams of…

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Q: Calculate the dednisty of hydrogen bromide(HBr) gas in grams per liter at 661 mmHg and 34 degrees…

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

Q: 7.596×10-4 mol of CF4(g) (tetrafluoromethane gas) is generated into a 131.0 mL headspace, at 25.0…

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Q: If a gaseous mixture is made by combining 1.16 g Ar and 2.45 g Kr in an evacuated 2.50 L container…

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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: What mass of Al₂O3 is produced when 13.2 L of O₂ gas react with Al at 434 K and 5.08 atm. 4 Al(s) +…

A: Given reaction is  4 Al(s) + 3O2 (g) →2Al2O3 (g) Temperature= 434 K Pressure = 5.08 atm Volume =13.2…

Q: If a gaseous mixture is made by combining 4.66 g Ar and 4.71 g Kr in an evacuated 2.50 L container…

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Q: Nitrogen trichloride is dangerously explosive and sensitive to light and heat. If 20.5 mol of…

A: N2(g) + 3Cl2(g) ---> 2NCl3(g)moles of Chlorine (Cl2) reacts = 20.5 molExcess reactant: nitrogen…

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.