(a) How many molecules are there in 1L of air at a temperature of 27°C? (b) How many kilomoles of air are in that volume? (c) The best vacuum that can be produced corresponds to a pressure of about 10-10 atm. How many molecules remain in 1 L?

Q: 3. How much pressure in kPa does 2 moles of nitrogen gas at 55°C exert on a container that holds 63…

A:

Q: What volume is occupied by 0.118 mol of helium gas at a pressure of 0.97 atm and a temperature of…

A: The volume occupied by the helium gas can be calculated by the ideal gas equation as follow: In…

Q: A vessel with a volume of 26.9 L contains 2.80 g of nitrogen gas, 0.605 g of hydrogen gas, and 79.9…

A:

Q: equal volumes of ammonia (NH3) and ozone (O3), at the same pressure and temperature that they have?

A: We know that for gasses  PV = nRT  n = PV/RT

Q: 2. At what temperature will 0.84 moles of neon gas occupy 120 cm' at 1 atmosphere?

A:

Q: At what temperature will the volume of a gas at 0°c double itself, pressure remaining constant?

A:

Q: What volume of CO2 at 15 degrees Celcius and 1.50 atm contains the same number of molecules as 0.410…

A: The initial temperature is 15 C, whereas the final temperature is 35 C. The conversion of…

Q: A 0.704-g sample of a colorless liquid was vaporized in an evacuated 250.-mL flask at 121°C to give…

A: Given information: Mass of sample = 0.704 g Pressure (p) = 786 mmHg Volume (V) = 250 mL Temperature…

Q: You have 354 mL of chlorine trifluoride gas at 762 mmHg and 48°C. What is the mass (in g) of the…

A: 1 atm is equal to 760 mmHg

Q: What volume is occupied by 5.8 g of propane gas, CaHs, at 35 °C and 1.15 atm pressure?

A: Given: Mass of propane i.e. C3H8 = 5.8 g. Temperature = 35 oC And pressure = 1.15 atm.

Q: What mass of helium gas is present in a 10.3-L sample of this mixture at 283 K ?

A: Given a gas mixture of CO2 , Ar, O2 and He gases with total pressure =770 mmHg and partial pressure…

Q: If a gas occupies 120 L at 9 atm, what volume will it occupy at standard pressure?

A:

Q: What is the pressure, in pascals, exerted by 1263 g CO(g) when confined at -22 ∘C to a cylindrical…

A: The radius of the cylindrical tank is 15 cm or 0.15 m. The volume of the cylindrical tank can be…

Q: A sample of argon gas occupies a volume of 866 mL at 28°C. What volume will the gas occupy at 50.7°C…

A: Answer: 931.3 mL volume occupy at 50.7°C

Q: 2. What mass of chlorine gas, Cl2 in grams, is contained in a 10.0 L tank at 27°C and 3.50 atm of…

A: Using ideal gas equation PV=nRT ,we can find mass of chlorine gas produce.

Q: 2. What is the density of nitrogen gas at 44.8°C and 141 kPa?

A:

Q: What volume is occupied by a 0.892 mol sample of xenon gas at a temperature of 0 °C and a pressure…

A: we know the ideal gas equation  => PV = nRT where, P is the pressure (in atm), V is the volume(in…

Q: What volume would 27 grams of CO2 occupy at 19 degrees celsius, 534 mm Hg pressure?

A: All matter can be classified as solid, liquid and gases mainly. In these physical states of matter,…

Q: What is the mass of 5.8 L of NH3 at 300° K and a pressure of 761.0 mm Hg?

A: NH3 Volume = V = 5.8 L Temperature = T = 300 K Pressure = P = 761.0 mmHg ( We know ; 1 atm = 760…

Q: What volume is occupied by 0.781 mol of CO2 at 237.5 K and 977 mmHg?

A: Write down what information is given to you

Q: If a 4.25 atm gas phase mixture contains 40.0g of neon and 40.0 g of helium at a constant…

A: Given- Total pressure= 4.25 atm  Weight of neon =40.0g Weight of helium =40.00 g

Q: A gas has the following elemental composition: C = 82.7%, H = 17.3% in mass. At stp (room…

A: Given, C = 82.7 % H = 17.3 %  Temperature = 0°C = 273 K Pressure = 760 mmHg = 1 atm Density = 2.496…

Q: What is the temperature, in degrees Celsius, of 5.23 moles of helium (He) gas confined to a volume…

A: The ideal gas equation is given by: PV = nRT Here, P is the pressure, V is the volume, T is the…

Q: What is the molar mass of a gas that has density 1.40 g/L at 760. mmHg and 273K?

A:

Q: How much potassium chlorate is needed to produce 20.0 mLmL  of oxygen gas at 700. mmHgmmHg   and…

A: Mole of the gas is  n = PV/RT

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: 1. What will be the pressure of a sample of 48.0 g of oxygen gas in a glass container of volume 5.2…

A:

Q: At constant pressure, to what temperature in degrees C must 25.5 mL of gas at 100 degrees C be…

A: At constant pressure, the temperature in °C up to which a 25.5 mL of gas at 100 °C is cooled so that…

Q: If 3.9 of propane are at a temperature of 48 c and are under 1.5 atm of pressure , what volume does…

A: Amount of propane = 3.9 g Temperature = 48˚C Pressure = 1.5 atm Volume = unknown Calculation of no.…

Q: What is the density of a sample of argon gas at 68 ∘C and 837 mmHg?

A:

Q: At 618 mm Hg, a sample of nitrogen gas occupies 490 mL.  What volume does the gas occupy if the…

A: We know Boyle's Law states that, "The absolute pressure(P) exerted by a given mass of an ideal gas…

Q: What is the temperature, in degrees Celsius, of a 10.5 grams sample of Ne gas confined to a volume…

A: Ideal gas equation. PV=nRT P is pressure. V is volume. R is gas constant. T is temperature. n is…

Q: What is the molar mass of a gas with the density of 5.84 g/L at 1.3 ATM and 27 degrees C?

A: It is given that the density of a gas is 5.84 g/L and the pressure of the gas is 1.3 atm and at a…

Q: 2. There is 1250. cm³ of chlorine gas at 25°C and 90,000 Pascals, what volume will the same gas…

A: Combined gas equation is the combination of Boyle's law, Charles law and Gay lussacs law.

Q: If a gas occupies a volume of 0.550 L at 25°C, at what temperature, in °C, will it occupy a volume…

A: In this question, we want to determine the temperature of gas in °C when volume Increases from…

Q: What is the mass (in g) of a 28.2 L sample of carbon dioxide gas at a temperature of 30.0 oC and a…

A:

Q: Consider a gas of volume 250 mL and a temperature of 29°C. What is the volume of this sample if the…

A: Consider a gas of volume 250 mL and a temperature of 29°C. The volume of this sample is to be…

Q: If 64.0 g of O2 gas has a volume of 0.50 L at 400 K, what is its pressure in milimeters of mercury?

A: The mass of O2 gas is = 64.0 g The volume of the gas is = 0.50 L The temperature of the gas is = 400…

Q: what would the density of nitrogen be if the gas was at 44.7*C and 2.1 atm?

A: The given data is as follows:                 The temperature of the nitrogen gas = 44.7…

Q: A sample of gas of mass 3.82g occupies a volume of 539 mL at 27 ⁰ C and 1.0 atm pressure. What is…

A:

Q: If a 7.00 gram sample of molecular nitrogen at 10 c occupies 2.50l, what is the pressure of the…

A: The pressure in the given question can be determined by using ideal gas equation- PV = nRT.…

Q: What is the density of Freon-11 (CFCl3) at 135°C and 2.7 atm?

A: Given;

Q: What volume of O2 at 988 mmHg and 31 °C is required to synthesize 23.5 mol of NO?

A: Given, Pressure = 988mmHg. Temperature = 31oC. Moles of NO = 23.5mol. Moles of O2 needed prepare…

Q: How many moles of oxygen gas will occupy a volume of 2.5L at 1.2 atm and 25 degrees Celsius?

A: Using ideal gas equation, we have P*V=n*R*T --------(1)  Where, P is pressure  V is volume, n is…

Q: 2. If 3.0 moles of nitrogen gas are collected in a 35.0 liter container at 20°C, what would be the…

A: As per the bartleby expert guidelines I am allowed to answer one question at a time. As Question 1…

Q: What is the volume, in liters, occupied by 1.8 moles of N2 gas at 1.254 atm pressure and a…

A: By using ideal gas equation we have :    P V = n R T  Where P = pressure             V = volume…

Q: How many moles of helium are needed to fill a balloon to a volume of 8.5 L at 55°C and 682 mmHg?

A:

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.