elium atoms have a mass of 4u4u and oxygen molecules have a mass of 32u32u, where uuu is defined as an atomic mass unit (u=1.660540×10−27kgu=1.660540×10−27kg). Compare a gas of helium atoms to a gas of oxygen molecules. At what gas temperature TrmsTrmsT_rms would the root-mean-square (rms) speed of a helium atom be equal to that of an oxygen molecule in a gas at 300 K?

Q: An elodea plant, commonly found in tropical fish aquaria, was found to produce 5.0 * 10^22 molecules…

A: Number of molecules of oxygen produced by elodea plant per hour = 5.0 x 1022 molecules

Q: What mass in grams of each gas is present in a sample containing the gases with the following…

A:

Q: A given mass of a gas occupies 13200 cm3 at 28°C. What volume will it occupy if the temperature is…

A:

Q: These distributions were obtained for five different gases at the same temperature. Which of the…

A: Maxwell Boltzmann distribution curve shows the fraction of gas molecules moving with a particular…

Q: Nitrogen gas occupies a volume of 1.87 x 102 mL, at 27 oC, and 0.89 atm of pressure.  How much…

A: Formula: P1 V1 = P2 V2

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: Calculate the root mean square (rms) average speed of the atoms in a sample of argon gas at 0.15 atm…

A: The speed of a gas particle depends on the temperature of the gas and its molar mass. The…

Q: Calculate the root mean square (rms) average speed of the atoms in a sample of xenon gas at 0.12 atm…

A: The speed of a gas particle depends on the temperature of the gas and its molar mass. The…

Q: At constant temperature, the volume of a gas is 225 mL at 850.0 mmHg. Using Boyle's law, calculate…

A: • As per guidelines, only the first question needed to be solved in case of multiple questions.

Q: A gas mixture containing oxygen, nitrogen, and argon has a total pressure of 881 torr.  What is the…

A: Solution In a mixture of gases, each constituent gas has a partial pressure which is the notional…

Q: Calculate the root mean square (rms) average speed of the atoms in a sample of argon gas at 0.15 atm…

A:

Q: 2.5 L of octane gas, C8H18, is combusted with 20.5 L of oxygen gas and ignited. What volume of…

A: Volume of octane gas = 2.5 L Volume of oxygen gas = 20.5 L Pressure = 0.995 atm Temperature = 22.0oC…

Q: 225 L of H2 gas and 75.0 L of N2 gas are simultaneous pumped into a 15.0-L reaction vessel at…

A: Given: Volume of H2 = 225L Volume of N2 = 75L Volume of NH3 = volume of vessel = 15L Pressure of H2…

Q: What volume of chlorine gas at 25.2 degrees Celsius and 0.950 atm can be produced by the reaction…

A: Step 1:

Q: When coal is burned, the sulfur present in coal is converted to sulfur dioxide (SO2), which is…

A:

Q: Calculate the volume of the gas, in liters, if 1.55 mol has a pressure of 1.28 atm at a temperature…

A:

Q: Sometimes in lab we collect the gas formed by a chemical reaction over water (see sketch at right).…

A: Answer: Mass of CO collected = 0.14g

Q: Magnesium burns in air to produce magnesium oxide, MgO, and magnesium nitride, Mg3 N2 . Magnesium…

A:

Q: 10m³ of a gas is initially at atmospheric pressure and 27 °C. The gas is then warmed to 127 °C with…

A: To determine the new pressure of the gas after it has been warmed while keeping its volume constant,…

Q: Sometimes in lab we collect the gas formed by a chemical reaction over water (see sketch at right).…

A:

Q: The reaction for the combustion of naphthalene, C10H8, is C10H8 (s) + 12 O2 (g) → 10 CO2 (g) + 4 H2O…

A: The given reaction is as follows:   The volume carbon dioxide formed = 1.45 LThe pressure of carbon…

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

A:

Q: Calculate the root mean square (rms) average speed of the atoms in a sample of neon gas at 0.16 atm…

A: The speed of a gas particle depends on the temperature of the gas and its molar mass. The…

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: 6. According to Charles' Law, the volume of a given sample temperature. The following data was…

A: slope = dYdX Now if we plot temperature along X-axis and Volume along Y-axis then slope = Change in…

Q: bacterial culture isolated from sewage produced 57.5 mL of methane, CH4, at 37°C and 752 mmHg. That…

A: For ideal gas equation of state is : PV = nRT  Or, n = PV/RT ....(1)  Given that : P = 752 mmHg =…

Q: Calculate the root mean square (rms) average speed of the atoms in a sample of krypton gas at 0.12…

A: The speed of a gas particle depends on the temperature of the gas and its molar mass. The…

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

A:

Q: Sometimes in lab we collect the gas formed by a chemical reaction over water (see sketch at right).…

A:

Q: metimes in lab we collect the gas formed by a chemical reaction over water (see sketch right). This…

A:

Q: 2NO-3(aq) + 5CO(g) + 2H+(aq) -> N2(g) + H2O(l) +5CO2(g)…

A: The given reaction is  2NO3-(aq) + 5CO(g) + 2H+(aq) → N2(g) + H2O(l) + 5CO2(g) ......(A)  Mass of…

Q: Calculate the root mean square (rms) average speed of the atoms in a sample of argon gas at 0.15 atm…

A: Root mean square : Formula for root mean square average speed…

Q: What is the molar mass of a compound if a gaseous sample has a density of 2.483 g/L at 30 °C and 662…

A:

Q: The mass of a sample of gas is 827 mgmg. Its volume is 0.270 LL at a temperature of 88 ∘C∘C and a…

A:

Q: A container holds SF6 gas at a temperature of 70.0°C. Calculate the quantities below in the…

A: Answer:Here:

Q: Your research director informs you that the molecules of a sample of gas at 339 K339 K have a…

A:

Q: The molecules of a certain gas sample at 321 K have a root-mean-square (rms) speed of 271 m/s.…

A:

Q: A sample of gas in a balloon has an initial temperature of 5 ∘C and a volume of 1600 L . If the…

A: Given : Initial temperature = 5oC=5 + 273= 278K Final temperature = 59oC= 59 + 273= 302K Initial…

Q: Calculate the total pressure of a mixture of helium (He), neon (Ne) and argon (Ar) gases, where the…

A: Given,  Partial pressure of the gases, PHe = 1.36 atm PNe = 0.61 atm PAr = 0.34 atm  We have…

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…

A:

Q: 9.562×10-4 mol of SF6(g) (sulfur hexafluoride gas) is generated into a 192.0 mL headspace, at 25.0…

A: The molar volume of the gas can be calculated by the ideal gas equation which is PV=nRT, where P, n,…

Q: Calculate the volume (in mL) that a helium gas sample would occupy under STP, if that same helium…

A:

Q: ometimes in lab we collect the gas formed by a chemical reaction over water (see sketch at right).…

A:

Q: Find the temperature in ˚C of 0.698 moles of hydrogen gas with a volume of 16334 mL collected at a…

A: The ideal gas equation can be described as the merger of Boyle's law, Charles’ law, Gay-Lussac’s law…

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.