The density of an ideal gas at STP is found to be 1.41 g/L. What is its molar mass?

Q: A balloon is filled with helium gas (see an illustration below). Indicate whether the volume of the…

A: A balloon is filled with helium gas (see an illustration below). Indicate whether the volume of the…

Q: At 25.0° C, a 10.00 L vessel is filled with 6.30 atm of Gas A and 7.89 atm of Gas B. What is the…

A:

Q: experiment shows that a 230 mL gas sample has a mass of 0.423 g at a pressure of 755 mmHg and a…

A: Volume of gas (V) = 230mL = 230mL×1L/1000ml = 0.230L  Mass of gas = 0.423 g  P = 755mmHg =…

Q: Consider the sample 7.85 moles of CO2 gas at 37°C and 1.2 atm. (a) Find the mass of 7.85 moles of…

A: The objective of the question is to calculate the mass, volume and density of 7.85 moles of CO2 gas…

Q: A mixture of gases contained only three types of gases (Ne, Ar and He) has a total pressure of 0.900…

A: Given:Mole fraction of Ne = 0.36Mole fraction of Ar = 0.44Total pressure = 0.9 atm.

Q: Suppose the O, gas evolved by a certain chemical reaction taking place at 50.0 Cis collected over…

A: Given: Temperature = 50oC Volume of gas collected in the collection tube = 118 mL To determine: Mass…

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: Consider the reaction  CaO (s) + CO2 (g) → CaCO3 (g)  What mass of CO2 could be absorbed by 1.25 g…

A:

Q: if the initial temperature of an ideal gas at 2.250 atm is 62.00 degrees celcius what final…

A: Given,Initial temperature, T1 = 62.00 oC = (62 + 273.15) K = 335.15 KInitial pressure, P1 = 2.250…

Q: A 700.0 mL gas sample gas sample at STP is compressed to a volume of 200.0 ml temperature is…

A: For an ideal gas at constant temperature the pressure is inversely proportional to the volume of the…

Q: How many moles of an ideal gas occupy 44.8 L to 273 K and 1.0 atm of pressure?

A: Volume of gas= 44.8 L Temperature= 273 K Pressure of gas= 1.0 atm Ideal gas equation.PV = nRT Here…

Q: sample of oxygen gas was collected by displacement of water in gas collection apparatus. The total…

A: Here we have to use Daltons law- Ptotal=Pwater+Poxygen It is given vapor pressure of water is 22.6…

Q: For many purposes we can treat ammonia (NH3) as an ideal gas at temperatures above its boiling point…

A:

Q: For an ideal gas, calculate the following quantities. (a) The pressure of the gas if 0.145 mol…

A:

Q: QUESTION 19 A 7.82 L cylinder contains 1.08 mol of gas A and 4.08 mol of gas B, at a temperature of…

A:

Q: Assume a scuba diver is working at a depth where the total pressure is 5.0 atm (about 50 m below the…

A:

Q: A sample of CH4 gas with a volume of 2.80 L at 25°C and 1.65 atm was mixed with a sample of O2 gas…

A: Given dataFor methane gasThe volume of methane gas=2.80 L.Temperature=25 oC.Pressure=1.65 atm.For…

Q: A container of N2O3(g) has a pressure of 0.270 atm. When the absolute temperature of the N2O3(g) is…

A:

Q: An anaesthetic gas contains 64.81% carbon, 13.60% hydrogen, and 21.59 % oxygen by mass, If 2.00 L of…

A: Given: Volume of gas = 2.0 L Temperature = 25 oC Pressure = 0.420 atm mass =2.57 g % of carbon =…

Q: a flask contains 1.00 L of a pure gas at 0.850 atm and 20.0°C. mass of the gas= 1.13 What is the…

A:

Q: A 1.95 g sample of an unknown gas at 61 ∘C and 1.00 atm is stored in a 1.45 L flask. What is the…

A: Given information:Mass of sample = 1.95 gTemperature = 61 °CPressure of gas = 1.00 atmVolume of…

Q: If 1.58 g Ar are added to 3.61 atm He in a 2.00 L cylinder at 27.0 °C, what is the total pressure of…

A:

Q: A student recovered0.398g of THF vapor in a 125 mL flask. Assuming the vapor is an ideal gas with a…

A:

Q: A sample of xenon gas occupies a volume of 6.22 L at 59.0°C and 1.03 atm. 1°C. If it is desired to…

A:

Q: An unknown diatomic gas has a density of 1.427 g/L at STP. What is the identity of the gas?

A:

Q: If the initial temperature of an ideal gas at 2.250 atm2.250 atm is 62.00 ∘C,62.00 ∘C, what final…

A: Initial temperature (T1) = 62.00 ◦C Initial pressure (P1) = 2.250 atm Final pressure (P2) = 1.700…

Q: A sample of xenon gas occupies a volume of 6.10 L at 48.0°C and 0.500 atm. If it is desired to…

A: Three gas regulations are used in the combined gas law: Charle's Law, Boyle's Law, and Gay Law.…

Q: If 27.5 mol of an ideal gas is at 9.29 atm at 72.30 ∘C,what is the volume of the gas?

A: Given, moles of an ideal gas = 27.5 mole Pressure, P = 9.29 atm Temperature, T = 72.30 oC = 345.30 K

Q: An ideal gas “follows all the rules,” what causes gas to “break the rules?”

A: An ideal gas is a gas that is composed of a set of particles moving randomly, and do not interact…

Q: Which of the graphs below shows the relationship between the molar volume and molar mass of ideal…

A: Avogadro rule: According to this rule, if the temperature and pressure of the gases are the same…

Q: A sample of neon gas occupies a volume of 8.35 L at 44.0°C and 0.960 atm. If it is desired to…

A:

Q: If 1.52 g Ar are added to 3.41 atm He in a 2.00 L cylinder at 27.0 °C, what is the total pressure of…

A:

Q: What is the total combined volume of all the products if 30 L of propane gas, C3H8(g), is…

A: To find out the combined value, first write the balanced reaction for a combustion of propane gas.…

Q: 3) An ideal gas sample has a mass of 1.28 grams in a 0.500 L container. The temperature of the…

A: Introduction-

Q: The typical human lung has a volume when full of approximately 5.0 L. The partial pressure of oxygen…

A: Given : Temperature = 37 oC Volume of lungs i.e container = 5.0 L And partial pressure of oxygen =…

Q: At Stp conditions, 11g of SO2 have a volume of

A: Given :- mass of SO2 = 11 g  To be calculated :- volume of SO2 at STP

Q: 6.906 g sample of dintrogen pentaoxide gas in a 275 mL container at 35°C has a pressure of

A: The question is based on ideal gas law. we have to calculate pressure for dinitrogen pentoxide. we…

Q: The stopcock connecting a 1.00 L bulb containing krypton gas at a pressure of 678 mm Hg, and a 1.00…

A: We have to calculate the final pressure

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.