How many moles of air are in a 2.8 x 106 L balloon at 20 °C and 750 mmHg of pressure? If the average molar mass of air is 28 g/mol, how many tons of air is this?

Q: A mixture of helium, nitrogen, and Neon has a total pressure of 815 mmHg and volume of 2.00L at…

A: According to the ideal gas equation   PV = nRT where, P = pressure, V = volume, T = temperature, n=…

Q: When collecting a gas over water it is necessary to correct for the vapor pressure of water in order…

A: Vapor pressure is the measure of how much a substance is prone to go to the vapor state. Vapor…

Q: N2O5 is stable as a solid but is an unstable gas that decomposes according to the following…

A: The decomposition reaction of the nitrogen pentaoxide is given by: The stoichiometry of the…

Q: P4(g) + 6Cl2(g) → 4PCl3(g) 4.53 L of P4(g) is mixed with 6.80 L of Cl2(g) and reacts with 100%…

A:

Q: Part B To identify a diatomic gas (X2), a researcher carried out the following experiment: She…

A: Number of moles of X2 in the flask initially is calculated using Ideal Gas equation as follows,

Q: (a) Calculate the density of NO2 gas at 0.970 atm and 35 degrees C. (b) Calculate the molar mass of…

A: a.Using the ideal gas equation, the concentration of NO2 is determined as,

Q: If an ideal gas has a pressure of 1.75 atm,1.75 atm, a temperature of 44.79 ∘C,44.79 ∘C, and a…

A: Pressure of Ideal gas = 1.75 atm  Temperature              =  44.79℃…

Q: Name: 5. Hydrogen cyanide is prepared commercially by the reaction of methane (CHa(g)), ammonia…

A: Methane, ammonia, and oxygen react to form hydrogen cyanide and water.

Q: If we have 42.14L of O2 gas at STP, how many moles of this gas do we have?

A: Given,  The volume of O2 gas = 42.14 L The number of moles of O2 present at STP in this volume is:

Q: A sample of butane (C4H10) gas having a volume of 2.0 L at 25 °C and 1300 mm Hg was mixed with a…

A: PFA

Q: A 1.50-L sample of a gas at STP has a mass of 4.75 g. What is one possible formula of the gas? a.…

A:

Q: If 26.0 g of Ar(g) occupies a volume of 4.95 L, what volume will 1.09 moles of Ne(g) occupy at the…

A: The molar mass of Ar = 40g/mol  The ideal gas equation states that: PV1 = nRT   .......... 1 Given:-…

Q: A mixture used by divers for breathing purposes contains 34.3% helium (He), 51.7% nitrogen (N2) and…

A:

Q: Part A: Calculate the molar mass of a gas that has a density of 1.98 g/L at STP.   Part B:…

A: To Solve this problem we use the relation that   d = PM/RT  Where , d = density   P = pressure  M =…

Q: A 2.01 L flask containing 2.31 g of helium gas (molar mass = 4.003 g/mol) is separated by a stopcock…

A: Solution:      Number of moles in a solution is given by the ratio of number of moles of substance…

Q: Calculate the volume 3.00 moles of a gas will occupy at 24.0°C and 105.2 КРа. * 35.4 L 15.4 L 70.4 L…

A: Answer C

Q: Assume that 67.0 L of N2 gas are needed to inflate an airbag to the proper size. How many grams of…

A: The reaction for the formation of N2 from NaN3 – 2NaN3s →2Nas +3N2g

Q: A balloon contains 2.50 mols of CH4 gas with a volume of 25.0 L. What will the volume of the balloon…

A:

Q: A 1.50-L sample of a gas at STP has a mass of 4.75 g. What is one possible formula of the gas? a.…

A:

Q: What volume (in L) would 6.68 g of nitrogen gas (28 g/mol) )occupy at 48.8 °C and a pressure of 1.24…

A: mass of N2 = 6.68 g T = 48.8 oC = 321.95 K P = 1.24 atm

Q: A 5.00 L N2 gas sample at a pressure of 1.20 atm and temperature of 15.8ºC has a mass of 7.08 g.…

A: In this question, we have to find out the correct answer of given problem by the help of the…

Q: A sample of Carbon Dioxide gas (CO​ 2​ ) occupies a volume of 941 mL at a pressure of 748 torr and a…

A: Given :  Volume = V             = 941 ml = 941 /1000 = 0.941 L Pressure = P             = 748 torr =…

Q: Under what conditions is the volume of one mole of a gas equal to 22.4 L? What do you call this…

A: At what condition, volume of one mole of a gas = 22.4 L  What do you call this volume ?

Q: A CO2 sample has a volume of 3.54  L and pressure of 687 mmHg. If the pressure is increased to 789…

A: A CO2 sample has Initial volume  V1 = 3.54  L Initial pressure  P1 = 687 mmHg Final pressure  P2 =…

Q: Part A:  A sample of gas in a balloon has an initial temperature of 33 ∘C and a volume of 1880 L.…

A: A) Given: Initial temperature of gas = 33 oC Initial volume = 1880 L And final temperature = 77 oC

Q: 1. If an ideal gas has a pressure of 1.63 atm, a temperature of 27.99 ∘C, and a volume of 56.73 L,…

A: Hey, since there are multiple questions posted, we will answer first question. If you want any…

Q: 1. Consider a 25.0 L gas sample in a container initially at 25°C and 1 atm pressure. If this gas is…

A: We have to apply Charles's law

Q: A 1.91 mol sample of hydrogen gas occupies 22.9 L. How many mol of hydrogen are needed to fi 113.9 L…

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: N2(g) + 3H2(g) → 2NH3(g) 8.99 L of N2(g) is mixed with 7.64 L of H2(g) and reacts with 100% yield.…

A: Based on limiting reagent we should calculate the  percentage of yield  22.4 L occupied 1 mole of…

Q: The Celsius temperature of a 3.00-L sample of gas is lowered from 80.0°C to 30.0°C. What will be the…

A: Given,  Initial volume = V1 = 3.00 L  Initial temperature = T1 = 80.0°C  Final temperature = T2 =…

Q: Calculate the number of oxygen molecules in a gas sample, with a volume of 2.17 L at 27°C and 800.0…

A: Given, Volume = 2.17 L Temperature 27 oC = 300 K Pressure = 800 torr Formula Used PV = nRT Where, R…

Q: 1. A 3.2 liter sample of gas is at 40°C and 1.0 atmosphere of pressure. If the temperature decreases…

A:

Q: A balloon contains 0.158 mol of gas and has a volume of 2.46 L. If we add 0.113 mol of gas to the…

A: Given Pressure and Temperature are constant. Initial moles of gas,  n1 = 0.158 mol Initial volume of…

Q: A balloon is filled with helium gas to a volume of 2.5 L at a pressure of 99.6 kPa and a temperature…

A: Ideal gas law is a combination of all the gas laws.  Boyle's law gives the relationship between…

Q: A sample of gas weighs 7.30 g and has a volume of 2.49 L, and pressure of 361 torr at a temperature…

A:

Q: A balloon has 0.158 mol of gas and has a volume of 2.46 L. If an additioal 0.113 mol of gas is added…

A: Given: Initial moles of gas (n1) = 0.158 mol Initial volume of the balloon (V1) = 2.46 L

Q: A 0.0524-g sample of magnesium is reacted with 25 ml of 3.0 M sulfuric acid as described in the…

A: Mass of sample of Magnesium is 0.0524 g. 4. To calculate pressure of Hydrogen (H2) gas over water…

Q: 2.98 mol of a gas occupies a volume of 3.92L. What is the volume if 1.19mol of the gas is released…

A: We will use gas law V1,n1,n2 is given

Q: A balloon originally has 0.100 moles of helium and has a volume of 0.500 L. If 0.590 grams of He are…

A: The problem is based on Avagadro's law which states that the under similar conditions of pressure…

Q: if 1.00 mole of a gas occupies 22.4 L what volume would 0.750 moles occupy under the same pressure…

A: Given :  Initial moles = 1.00 mol  Initial volume = 22.4 L  Final moles = 0.750 mol  To be…

Q: Part B To identify a diatomic gas (X2), a researcher carried out the following experiment: She…

A: The volume of the gas = 3.0 L The mass of gas = 3.5 g The pressure of the gas is = 1.00 atm The…

Q: A 0.604 g0.604 g sample of a metal, M, reacts completely with sulfuric acid according to…

A: Given chemical reaction, M (s) + H2SO4 (aq) ⟶ MSO4 (aq) + H2 (g) Data given, m = mass of the metal,…

Q: Avogadro’s law states that a. 1 liter of any gas contains 6.02 x 1023 gas molecules. b. the volume…

A: Avogadro’s law: At constant temperature and pressure, the number of gas molecule or atoms is…

Q: Two students perfomed an experiment on the decomposition of hydrogen peroxide. One student was in…

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

Q: A 40.0 mL volume of ethane gas is heated from 25.0 C to 50.0°C. If the pressure remains constant,…

A:

Q: A balloon originally has 0.10 moles of Helium and has a volume of 0.50 L. If 0.53 grams of He are…

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

Q: A 0.601 g0.601 g sample of a metal, M, reacts completely with sulfuric acid according to…

A: As per the question, the water level in the collecting container is equivalent to the outside level.…

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.