How many moles of air are there in a 12.5 L Erlenmeyer flask if the pressure is 0.985 atm and the temperature is 20.0 °C?

Q: A 20.0 L container at 303 K holds a mixture of two gases with a total pressure of 5.00 atm. If there…

A: Given: Volume is 20.0 L Temperature is 303 K. Total pressure is 5.00 atm. Moles of gas A is 1.52…

Q: Calculate the final temperature of a sample of gas initially at 22.3 0C that is expanding from 2.335…

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

Q: Calculate the molecular weight (molar mass) of a gas if 0.35 g of the gas at a temperature of 37.6…

A:

Q: The volume of a sample of gas measured at 26 ºC and 0.986 atm is 10.50 liters.  What final…

A: from charles law: temperature and volume are directly realted using degrees kelvin. here both…

Q: The gas in a 0.317 L cylinder of a diesel engine exerts a pressure of 944 Torr at 57.0 celsius. The…

A: Given: Initial Volume V1 = 0.317 L Initial Pressure P1 = 944 torr = 1.242 atm Initial Temperature T1…

Q: If a container of nitrogen and oxygen gas holds 2.50 atm of N2 gas and 1.50 atm of O2 gas, what is…

A: According to Dalton's law of partial pressure : Total pressure of a mixture of gas is given by the…

Q: 3. Calculate the volume of 4.7009 x 1023 molecules of NH3 gas trapped in a container at a pressure…

A:

Q: Initially given 3.6 L at 380 mmhg and 25 celsius is then transferred to a 5.0L flask at 0 celsius;…

A: Record the given data,

Q: A balloon is filled to a volume of 12.9L at a temperature of 27.1ºC. If the pressure in the balloon…

A:

Q: A balloon is filled to a volume of 18.1L at a temperature of 27.1ºC. If the pressure in the balloon…

A: Convert the unit of temperature:

Q: How many grams of oxygen must react to produce 45.475 Lof NO at 28.500°C and 0.9190 atm, according…

A: Given data: Volume of NO = 45.475 L Temperature of NO = 28.50C Pressure of NO = 0.919 atm Here, the…

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: A balloon is filled to a volume of 24.3L at a temperature of 27.1ºC. If the pressure in the balloon…

A: •Volume (V) = 24.3 L •Pressure (P) = 2.20 atm •Temperature (T) = 27.1°C = 27.1 + 273.15 = 300.25 K…

Q: When methane is burned in oxygen, carbon dioxide and water are formed. When 8.00 L of methane at 125…

A: The chemical equation for combustion of methane is: CH4(g)+2O2(g)→CO2(g)+2H2O(g)    -------(1)

Q: A 1,529 mL balloon is filled with gas. As the volume decreases to 879.0 mL the pressure changes to…

A: V1 = 1529 mL V2 = 879.0 mL P2 = 3.72 atm  We need to find P1.

Q: When sodium chlorate (NaClO3) is heated, it decomposes into sodium chloride andoxygen gas. A student…

A: STP means standard pressure (P) and temperature (T) which  mainly corresponds to 1.0 atm and 273…

Q: Sulfur tetrafluoride gas is collected at  −4.0°C  in an evacuated flask with a measured volume of…

A: Applying ideal gas equation  PV = nRT where  P= pressure, V= volume, n= no. of moles R= gas…

Q: Suppose a balloon is filled so that its volume is 2.00 L when the pressure is 750 torr and the…

A: Initial pressure (P1) = 750 torr  Since, 1 atm = 760 torr P1=750torr×1 atm760torr=0.9868 atm Initial…

Q: Chlorine pentafluoride gas is collected at 9.0°C in an evacuated flask with a measured volume of…

A: Given :-  pressure of gas = 0.410 atm  volume occupied by gas = 5.0 L  temperature = 9.0°C  To…

Q: How many moles of gas are there in a 30 L scuba canister if the temperature of the canister is 300 K…

A: Given that, Volume of gas in scuba canister V = 30 L Temperature T = 300 K Pressure P  = 200 atm…

Q: If an unknown quantity of gas is held at a temperature of 789 K in a container with a volume of 28.0…

A:

Q: In the presence of a catalyst, ammonia, NH3, gas reacts with O2 gas to form NO gas and water vapor…

A:

Q: If 35.0g of CO2 at 15.0 degrees Celsius and a pressure of 795 torr, what is the volume?

A: The ideal gas equation is given by,                                                PV = nRT Where, P…

Q: How many moles of a gas fill a flask with a volume of 168 mL at 97 degrees Celsius and a pressure of…

A: Ideal Gas Law :-  PV = nRT  P is the pressure of gas  V is the volume occupied by gas n is the…

Q: A sample of an unknown gas weighing 10.9 g occupies a 25.585 L container at a pressure of 0.694 atm…

A: Given a sample of gas,mass of gas =10.9 gvolume of gas =25.585 Lpressure of gas =0.694 atmand…

Q: If 45.6 g of CO2 is contained in a 2.75-L container at 25ºC, what will the pressure be in this…

A:

Q: A balloon holds 30.0 kg of helium. What is the volume of the balloon if its pressure is 1.20 atm and…

A:

Q: Hydrogen gas, oxygen gas, and water vapor are collected in eudiometer. The eudiometer contains…

A:

Q: What is the pressure in a 5.52-L flask if 0.114 mol of carbon dioxide is added to 0.623 mol of…

A: PV = nRT P = pressure of gas V = volume of gas n = moles of gas R = universal gas constant T =…

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

A:

Q: At what temperature will a 4.0 g sample of neon gas exert a pressure of 507 torr in a 6.0 L…

A: Solution: The ideal gas law is, where, P =the pressure of gas. V= volume of the gas n = number of…

Q: A sample of gas at 879.6 mmHg and occupying a volume of 14.39 L is transferred to a large container…

A: The given data: The initial pressure of the gas = 879.6 mmHg 1 mmHg = 0.133322 kPa 879.6 mmHg =…

Q: A sample of gas has a volume of 2.50 L at 916 kPa and 75.0 °C. What is the pressure (in atm) of the…

A: Given:  P1 = initial pressure of gas = 916 kPa V1 = initial volume of gas = 2.50 L T1 = initial…

Q: A 20.0 L container at 303 K holds a mixture of two gases with a total pressure of 5.00 atm. If there…

A: Given :  Volume of gaseous mixture = 20.0 L  Temperature = 303 K  Total pressure = 5.00 atm  Number…

Q: At 118oC, the pressure in a 12.0 L flask is 847 mm Hg. How many moles of gas are in the flask?

A: The ideal gas equation is shown below:P V = n R T Where; P = pressure of the gas V= volume of the…

Q: A particular gaseous hydrocarbon has a density of 2.33g/L at 23oC and 746mmHg.  Calculate the molar…

A: Introduction:- the molar mass of the gas can be find by using ideal gas equation which is as- P×V…

Q: sealed flask contains 366 mL of gas at 42.7 oC and 836 mmHg. If the gas in the flask has a mass of…

A: Mole is equal to weight of substance divide by it's molar mass

Q: The initial conditions of a sample of gas are 319 K, 3.087 L, and 591 torr. What is the final…

A:

Q: A 247 mL gas sample has a mass of 0.431 g at a pressure of 738 mmHg and a temperature of 26 ∘C.…

A:

Q: A flask with a total volume of 0.0200 L is found to contain 0.05649 g of an unknown gas when the…

A: Ideal gas equation PV = n RTwhere n = number of moles of unknown gas n can be written as n = m/M…

Q: When methane is burned in oxygen, carbon dioxide and water are formed. When 8.00 L of methane at 125…

A: It is given that methane gas is burned in oxygen to release carbon dioxide and water, and the…

Q: What pressure in mmHg is required to contain 0.029 moles of nitrogen gas in a 3.8 L container at a…

A: Given : Moles of gas = 0.029 mol. Volume of flask = 3.8 L  And temperature of gas = 20.0 oC

Q: A mixture of gases contains He, Ar, and Kr. If the total pressure of the mixture is 2082.0 torr and…

A:

Q: Imagine a 22.4L box filled with air. The pressure is 615 mmHg and the Temperature is 22ᵒC. How many…

A: 760 mmHg is equal to one atm of pressure

Q: A balloon is filled to a volume of 22.1L at a temperature of 27.1ºC. If the pressure in the balloon…

A:

Q: If you have 3.3 moles of a gas at 200.13 mL and 27.0 oC, what is its pressure?

A: ideal gas equation  PV=nRT P=pressure V=volume n=no of moles R=gas constant T=temperature P=nRT /V…

Q: Calculate the density of a gas if the pressure in a vessel is 3.2 atm at 182 degrees Celsius. The…

A: Given,Molar mass = 52.2g/molPressure = 3.2atm

Q: A sample of gas occupies 44.3 L at a pressure of 1.25 atm. How many liters will it occupy at a…

A: Gas laws are the laws that relate the pressure, volume, and temperature of a gas. There are mainly…

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.