A balloon is filled with 8.964 liters of He at STP. How many grams of helium are in the balloon?

Q: A balloon contains 1.00 mol helium gas at STP. What will the volume of the balloon be if the…

A: At STP 1 mol of gas will occupy 22.4 L of volume. Boyle's law of gas gives how pressure relates with…

Q: How many molecules are there in an ideal gas with a volume of 7.49 L at STP? number of molecules:

A: STP refers to standard temperature and pressure.  Here at STP, temperature is 00C pressure is 1 atm

Q: Calculate the volume of each gas sample at STP. 2.1 mol helium.

A: The objective of the question is to calculate the volume of a gas sample, in this case helium, at…

Q: What volume will 2.00 mol of oxygen gas occupy at STP?

A: Given,   moles of oxygen gas = 2 mol ,  at STP. Here STP stands for the standard temperature and…

Q: An expendable balloon on the ground contains 1400 L of He at 0.950 atm pressure and a temp of 18*C.…

A: Expanded balloon on ground Volume = V1 = 1400 L Pressure = P1 = 0.950 atm Temperature = T = 18°C…

Q: An experimental chamber has a volume of 85 L. How many moles of oxygen gas will be required to fill…

A: Number of moles of ideal gas n = PV/RT Number of moles of ideal gas at 1bar and 273K  n = volume of…

Q: How many liters are in a container holding 6.24 mol of hydrogen gas at STP?

A:

Q: What is the volume of a gas in ml at STP if the gas changed conditions to 341 ml at 25.0 celsius at…

A: Since the oxygen is collected over water, total pressure includes vapor pressure of water. From the…

Q: What is the density of methane gas, CH4 at STP?

A: STP means standard temperature and pressure  Temperature is 0°C or 273 K  Pressure is 1 atm

Q: A student wants to make 99.4 L of CO2 that is to be collected at STP. How many grams of CH4 should…

A: The reaction between CH4 and O2 is ; CH4 + 2O2 → CO2 + 2H2O From this Balanced chemical equation we…

Q: What is the density of NH3 gas at 78˚C and 345 torr?

A:

Q: A balloon is filled with 62.5g of NO2gas at STP. Calculate the volume of the NO2 gas in liters.

A: Given:Mass of NO2= 62.5 g.At STP,    Temperature T = 273 K.    Pressure P = 1 atm.

Q: A balloon contains 125 L of air at 35oC.  What will the new volume of the balloon be if the…

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

Q: How many helium (He) gas molecules are present in a balloon with a volume of 1.5L at STP?

A:

Q: How many molecules are there in an ideal gas with a volume of 6.28 L at STP?

A: We have the ideal gas equation PV=nRT...................1 We know that, the ideal gas is at STP…

Q: How many grams of neon gas are in a 10.0 L container at STP?

A: At STP the volume of one mole gas is 22.4 Litre. Hence, by using this concept we can calculate…

Q: A balloon is filled with 18.9 g of N2 gas at STP. Calculate the volume of the N2 gas in liters.

A: Using  Ideal gas equation  PV = nRT

Q: How many grams of C3H8 gas are present in 945 mL at STP?

A: Interpretation - To determine the grams of C3H8 gas are present in 945 mL at STP.    Concept-  To…

Q: A gas is placed in a balloon with a volume of 3.0 L at 35° C and 800 torr. What would be the new…

A: Initial Volume of gas = V1= 3.0 LInitial Temperature of gas = T1= 35°C = (35 + 273) K = 308 KInitial…

Q: A balloon is filled with 18.9 g of N2 gas at STP. Calculate the volume of the N2 gas in liters.

A: Using  ideal gas equation  PV= nRT At STP T= 0°C P = 1 atm

Q: Calculate the densities of the following gases at STP: SO2

A: At STP, the temperature will be 273 K and pressure will be 1 atm. At this condition, one mole of SO2…

Q: What is the density of oxygen at STP?

A: density of O2 = mass of O2/volume of O2 at STP At STP :-  1 mol gas = 22.4 L

Q: A balloon is filled with 82.4 g82.4 g of H2H2 gas at STP. Calculate the volume of the H2H2 gas in…

A: Answer

Q: How many liters of oxygen gas are required to burn 4.49 L of acetylene (C2H2) at STP?

A: When hydrogen is burned  then  form corbon di oxide and oxygen

Q: how many molecules of hydrogen sulfide gas would be in a 11.2 L sample of gas at STP? what would the…

A: Given : Volume of gas = 11.2 L And STP conditions i.e standard temperature (273 K ) and pressure…

Q: how many molecules of helium gas occupy 1/2 L at STP?

A: The number of molecules of helium gas occupy 1/2L at STP =?

Q: Ammonia gas breaks down into hydrogen and nitrogen. If 8.5 L nitrogen is formed at STP, how many…

A: Decomposition of ammonia produce nitrogen and hydrogen gases. Given values -> Volume of N2 gas =…

Q: What is the mass of hydrogen gas (RMM=2) that occupies volume of 35 L at STP?

A:

Q: How many liters of H2 are equal to 11.1 grams of H2 gas at STP?

A: Mass of H2 = 11.1 g

Q: container is filled with 27.6 L of oxygen gas at STP. Approximately what mass of oxygen would there…

A: Volume of Oxygen gas = 27.6 L At STP-> T = 273.15 K P = 1 atm

Q: Consider the reaction of 85.5 L of NH3 gas at STP and 105 L of oxygen gas at STP. 4NH3(g) + 5O2(g)…

A:

Q: Calculate the mass in grams of 3.55 L of NO gas at temp 52 C and 874 mmhg

A: By combining three laws Boyle’s law V ∝ 1/P   (constant T and n)       eqn i) Charle’s law V ∝ T…

Q: CH4 + 2 O2 --> CO2 + 2H2O A student wants to make 99.4 L of CO2 that is to be collected at STP. How…

A: We have reaction of  methane with oxygen , we have STP condition and 99.4 L of CO2.  We have to…

Q: What is the volume of a sample of gas at STP if it initially occupies 2.5 liters at 709 torr and…

A: Volume of 1 mol of any gas at STP = 22.4 L

Q: A 841 mL sample of NH3 gas is at STP. If the volume changes to 576 mL and the temperature changes to…

A:

Q: How many molecules exit in 28.45 L of nitrogen gas at STP?

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

Q: How does the kinetic-molecular theory explain why 1 mol ofkrypton and 1 mol of helium have the same…

A: One mole of krypton and one mole of helium have the same volume at STP because they have the same…

Q: How many moles are contained in the following volumes of air at STP: (a) 1.5 L; (b) 8.5 L; (c) 25…

A: Number of moles of a substance is equal to the ratio of given volume and molar volume. At STP, the…

Kinetic-Theory of Gases

Kinetic theory of gases is the model or method which was developed in the 19th century by Maxwell and Boltzmann. This is possible as the interatomic force which is of short-range forces that are important for solids and liquids can be neglected for gases. This theory or gas law gives a molecular interpretation of the pressure and temperature of a gas and is consistent with gas laws and Avogadro’s hypothesis. This theory is very helpful to correctly explain the specific heat capacities of many gases, kinetic energy and it also explains the transport qualities such as viscosity, thermal conductivity, and diffusion with molecular parameters. As stated in the kinetic-molecular theory, the temperature of a substance or gas particle is related to the average kinetic energy of the particles of that substance. When a substance is heated, some of the absorbed energy is stored within the particles, while some of the energy increases the motion of the particles, called average kinetic energy.