The graph shows the molecular speed of four gases at 27 ∘C.   What, if any, relationship is observed between the most probable molecular speed and the molar mass of the gas? The most probable molecular speed increases as the molar mass of the gas increases. The most probable

Q: Find the molar mass of the Unknown gas?

A: According to Graham's law of effusion, the rate of effusion of a gas is inversely proportional to…

Q: White phosphorus melts and then vaporizes at high tempera-ture. The gas effuses at a rate that is…

A: The Scottish physical chemist Thomas Graham gives direct relation between rate of effusion of gas…

Q: A sample of gas CH4 is observed to effuse through a pourous barrier in 7.53 minutes. Under the same…

A: The formula which relates time to effuse for a gas and molecular mass is shown below: Time for gas…

Q: Dimethyl ether, CH3OCH3, undergoes gas phase decomposition to form methane, hydrogen gas, and carbon…

A: Solution - Given :- 1) Weight of dimethyl ether= 58.63g 2) Molar mass of dimethyl ether = (2 X…

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: You start with an equimolar mixture of the gases SO₂ and O₂ in a container. The SO₂ and O₂ react to…

A: Given data:

Q: The rate of effusion of N, to an unknown gas is 0.756, what is the molar mass of the other gas?…

A: We have to find mass of unknown

Q: Four identical balloon each at 25 degrees Celsius and 1.0 atm are each filled with pure gases CH4,…

A: Graham's law states that the rate of the diffusion of gases are inversely proportional to the square…

Q: An unknown gas effuses at a rate 1.50 times the rate of COCl₂. What is the molar mass of the unknown…

A: To solve this problem we will use the concept of Graham’s Law .

Q: A gas mixture containing only O2 and N2. If the mole fraction of O2 is 0.37, and the total pressure…

A: 1) Given data is A gas mixture containing only O2 and N2 The mole fraction of O2 = 0.37 The total…

Q: How can comparing the rates of effusion of gases X and Y allow the molar mass of Y to be calculated?…

A: Grahams’s Law of effusion states that the rate of effusion of a gas is inversely proportional to…

Q: Which gas has the slowest average molecular speed at 25 °C? Molecular Gas mass (g/mol) Ne 20.2 Ar…

A: Average  molecular  speed  = 8RTπM  where M is molar mass Average  molecular  speed  inversely…

Q: For a certain hydrocarbon gas, 20.0 mg exerts a pressure of 24.7 torr in a 500-cm3 vessel at 25…

A: Ideal gas equation is  PV =nRT  P = pressure of hydrocarbon gas = 24.7 torr = 0.0325 atm  V = volume…

Q: Two gases effuse through a hole. If Gas A has 16 times the molecular mass of gas 8, what is the…

A: Using graham's law of diffusion of gases we can solve this problem.

Q: (a) Place the following gases in order of increasing average molecular speed at 25°C: Co, SF5, H2S,…

A: Average speed of gas molecules is given by the formula  c = 8RTπM M = molar mass of the gas    Root…

Q: Determine the molar mass (in g/mol) of a gas with an average molecular speed of 307 m/s at 60°C.

A:

Q: The graph shows the molecular speed of four gases at 27 °C. What, if any, relationship is observed…

A:

Q: A tank contains a mixture of 13.1grams of argon gas and 7.93grams of neon gas at 27°C. The total…

A:

Q: A mixture contains O2 at 700. torr pressure, F2 at 900. torr pressure, and Cl2 at 400. torr…

A: Given that, Pressure of O2=700 torr pressure of F2=900 torr pressure of Cl2=400torr then,

Q: At what temperature does the speed of carbon dioxide molecules, CO2, equal 350.0 m/sec?

A:

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: 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 gas has a density of 2.75 g L-1 at 46 °C and P = 1.04 atm. What will be its density at 175 °C?…

A: Density of a substance is defined as the ratio of its mass to its volume.

Q: An unknown gas X effuses 1.39 times faster than C4H10. What is the molecular mass of gas X (in g…

A:

Q: The plot below shows the distribution of molecular velocities for two gases (A and B) at the same…

A: This plot gives information about the fraction of molecules in having particular velocity range .…

Q: A sample of an unknown gas effuses in 10.8 min. An equal volume of H₂ in the same apparatus under…

A:

Q: 8.00 gram mixture of copper (II) sulfide and iron (II) sulfide reacted with

A:

Q: Consider a reaction vessel of fixed volume containing 24.78 grams of nitrogen gas and 12.388 grams…

A: Answer: Final Pressure = 0.755 atm and Final volume = 40.3 L

Q: what volume of

A:

Q: A sample of SO2 gas is observed to effuse through a pourous barrier in 3.70 minutes. Under the same…

A: Given- Rate of effusion of SO2 gas = 3.70 min Rate of effusion of unknown gas = 1.66 min   To find-…

Q: In a mixture of four different gases, the total pressure is 278.4 kPa. The gases have the following…

A: here,given the total pressure is 278.4 kPa. and P(He)= 0.2248 atm, P(Ne)= 0.557 atm, P(H₂)=0.8477…

Q: A sample of an unknown gas effuses in 11.1 min. An equal volume of H2 (2.016 g mol-1) in the same…

A: Given, Time: Time of unknown gas effuse (tg) = 11.1 min Time of H2 effuse (tH2) = 2.42 min Molar…

Q: How can comparing the rates of effusion of gases X and Y allow the molar mass of Y to be calculated?…

A: Grahm's Law of effusion of gases: This law is taken into consideration when two gases are compared…

Q: If a tiny hole is made in the container, which gas will effuse fastest" HBr O NO, O G,H, They all…

A: According to Graham's law of diffusion, Rate of diffusion of a gas is inversely proportion of square…

Q: An unknown gas effuses at a rate 0.500 times the rate of CH4. What is the molar mass of the unknown…

A:

Q: An unknown gas effuses at a rate 1.50 times the rate of COCI2. What is the molar mass of the unknown…

A:

Q: The organic compound di-n-butyl phthalate, C,H,O, (1), is sometimes used as a low-density (1.046 g…

A: Low density manometer : An open tube manometer measures the gauge pressure, P=h( d1 ÷ d2 ) where,  P…

Q: Consider the following reaction taking place at constant T and V: N2(g) + 3 H2(g) → 2 NH3(g) You…

A:

Q: A sample of an unknown gas effuses in 11.8 min. An equal volume of H2 in the same apparatus at the…

A: Given    Time of effusion of unknown gas X ( t1  ) =  11.8 min   Time of effusion of H2 ( t2 )  =…

Q: What volume of O2 at ất will be require ? CH4 + 2O2 → CO2 + 2H2O

A: Volume of CH4 = 1.22 L  Temperature= 15 °c = 288 K  Pressure= 328 kPa = 3.24 atm  Using Ideal gas…

Q: A mixture of krypton and helium gases at a total pressure of 738 mm Hg contains krypton at a partial…

A:

Q: A sample of an unknown gas effuses in 14.2 min. An equal volume of H2 in the same apparatus under…

A: According to Graham's law of effusion, the rate of effusion of a gas is proportional to the square…

Q: C,HBO7(s) +3 NaHCO3(s) + H2O(1) --> NagCgHgO7(s) + 3H2O(I) + 3CO2(g) 228.2 g C6H807(s) is reacted at…

A: Given Temperature = 265 K Volume = 158 L Mass of C6H8O7 = 228.2 g Molar Mass of C6H8O7 = 192.1 g/mol

Q: A container contains 0.342 moles of He and 0.156 moles of CO2 gas. The total pressure is 2.23atm.…

A: According to Dalton's law of pressure, In a mixture of non reacting gas the total pressure of the…

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.