7. A 2.10-L vessel contains 4.65 g of a gas at 1.00 atm and 27.0°C. (a) Calculate the density of the gas in grams per liter. (b) What is the molar mass of the gas?

Q: A certain gas has a density of 1.72g/L at STP. What is its molar mass?

A: Given that: Density of the gas = 1.72g/L The gas is STP. To find, the molar mass of the gas?

Q: A gas mixture contains He, Ne, and H,S at partial pres- sures of 125, 175, and 225 mm Hg,…

A: Dalton's law of partial pressure states that, the total pressure of a mixture of gases occupying a…

Q: 8. Consider the reaction of solid copper(I) sulfide with oxygen gas to produce solid copper(I) oxide…

A: A balanced chemical equation is one that contains an equal number of atoms on both sides of the…

Q: Chloroform is a common liquid used in the laboratory. It vaporizes readily. If the pressure of…

A: The given data contains, density =1.25 g/L Pressure =170 mm Hg =0.223684 atm Temperature =25°C =298…

Q: A gas mixture consists of N2, SO2, and Ar, where the mole fraction of N2 is 0.55 and the mole…

A:

Q: A 6.0-L flask contains a mixture of methane (CH4), argon, and helium at 45oC and 1.75 atm. If the…

A: Given information, A 6.0-L flask contains a mixture of methane (CH4), argon, and helium at 45oC and…

Q: A gaseous compound has a density of 1.51 g/L at 23.9 °C and 1.24 atm. What is the molar mass of the…

A:

Q: A sample of phosphorus that weighs 3.243 × 10−2 g exerts a pressure of 31.89 kPa in a 56.0-mL bulb…

A:

Q: ● At 30.0 °C, Pvapor = 31.8 mmHg ● R = 0.08206 L-atm/mol-K = 62.36 L-torr/mol-K ● MWAl = 26.98 g/mol…

A: We would use stoichiometric relations to calculate experimental mass of aluminium used .  Then using…

Q: A sample of gas at 840.9 mmHg and occupying a volume of 13.84 L is transferred to a smaller…

A: Boyle's law It states that at a given temperature and composition pressure of any gas is inversely…

Q: 5. When 40.0 liters of oxygen gas at 20.0 °C is compressed to 3.00 liters, what must the new…

A: COMPRESSION OF GAS: Gases can be compressed in order to enhance the pressure of the gas. When gases…

Q: What is the mass in grams of CH4 gas in a 5.00L cylinder at a pressure of 781 torr and a temperture…

A: Given information: Volume is 5.00L The pressure is 781 torr temperature is 25.0oC

Q: An 8.00-g sample of a gas occupies 22.4 L at 2.00 atm and 273 K. What is the molar mass of the gas?

A: Given that -  Mass of the gas = 8.00 g  Volume of the gas = 22.4 L  Pressure of the gas = 2.00 atm…

Q: A gas mixture with a pressure of 1.31 atm is composed of 20.95g O, and 78.09g N2. What is the…

A: Given: Total pressure of gaseous mixture = 1.31 atm. Mass of O2 = 20.95 g. And mass of N2 = 78.09 g.…

Q: A sample of CO2 gas occupies 155 mL at 45 oC. What is the new temperature (in oC) When the volume of…

A: We have to calculate the new temperature.

Q: A gaseous compound has a density of 1.63 g/L at 27.5 °C and 1.30 atm. What is the molar mass of the…

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

Q: A 10.0 g sample of an unknown gas occupies 1.47 X 10-2 m3 at a temperature of 298 K (25 °C) and a…

A: The ideal gas equation is,PV=nRTP=pressureV=volume of gasn=number of molesnumber of moles =…

Q: How many g of He are in a sample with pressure= 3.4 atm, volume= 3.5L, and T= 37°C, assuming that it…

A: Given ,  Pressure ( P ) = 3.4 atm Volume ( V ) = 3.5 L Temperature ( T ) = 37°C = (37+273.15)K =…

Q: Butane, C4H10, is used as a fuel for camping. If you have 108 mL of butane gas at 715 mmHg and 25…

A: According to ideal gas law PV = nRT  where P =pressure in atm  V = volume in L  n = moles of gas R =…

Q: A 6.0-L flask contains a mixture of methane (CH₄), argon,and helium at 45°C and 1.75 atm. If the…

A: Ideal gas equation:                                                                      PV=nRT…

Q: A gas mixture contains He, Ne, and H2S at partial pressures of 125, 175, and 225 mm Hg,…

A: Interpretation -  To determine the partial pressure in the milliliters of mercury of Ne when a…

Q: A sample of gas weighs 3.10 g and occupies a volume of 1,272 mL at 30 ˚C and 720 mm Hg. What is the…

A:

Q: 17. A sample of neon occupies 105 Lat 28°C under a pressure of 985 torr. What volarne woukd the gas…

A: Using the ideal gas equation  PV = nRT  Where  P= pressure  V = volume  n = no of moles  R = gas…

Q: in chemical analysis of a gas compound, it was observed that it contains 33.0% Silicon (Si) and…

A: Interpretation: The molecular formula of the compound is to be determined from the given…

Q: 2. If 116.7mL of propane gas is released from a gas tank at 23°C, what temperature, in °C, would be…

A: Given,  Initial volume in mL = V1 = 116.7 mL  Initial temperature in 0C = T1 = 23 0C  Final volume…

Q: The density of a gas is 1.30 g/L at STP. What is it's molar mass?

A:

Q: what mass of chlorine gas, cl^2 in grams, is contained in a 10L tank at 27° and 3.50 atm of…

A:

Q: 4. A 30.6 g sample of gas occupies 22.414L at STP. What is the molecular weight of this gas?

A: As per the ideal gas equation: PV=nRT where, P = Pressure of gas V = Volume occupied by the gas n =…

Q: 4) A sample of argon occupies a volume of 18.3 mL at 760. mm Hg and 13.3 °C. If the pressure of the…

A:

Q: What mass of NO2 is contained in a 13.0 L tank at 4.58 atm and 112°C?

A:

Q: The density of an unknown gas compound is 6.52 g./L at (STP) What is the molar mass of the gas?

A: Density of gas=6.52 g/L At STP Temperature=273.15K Pressure=1atm Molar mass of gas=?

Q: If 8.00 g of gas occupies 11.2 L at 20 degrees Celsius and 0.25 atm, what is the molar mass of the…

A: Given data - mass = 8 g. Pressure = P = 0.25 atm. volume = V= 11.2 L = 0.0112 ml. gas constant = R =…

Q: The flame produced by the burner of a gas (propane) grill is a pale blue color when enough air mixes…

A:

Q: At 1.10 atm and 14.23 ∘C, a 2.15g sample of gas occupies a volume of 2.10×103 mL. Calculate the…

A: Given pressure = 1.10 atm volume = 2.10 × 103 ml Temperature = 14.23°C mass = 2.15 g

Q: At 741 torr and 44 °C, 7.10 g of a gas occupy a volume of 5.40 L. What is the molar mass of the gas?

A: Using the ideal gas equation, given the pressure, temperature, mass and volume of the gas, where R…

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: On our campus, there are approximately 30.000 students who use 2.5 x 10° kJ of energy per day.…

A:

Q: A sample of fluorine gas occupies a volume of 1550 mL at 690 mm Hg and 155oC.  What is the mass of…

A: The question is based on the concept of ideal gas equation. we have to make use of ideal gas…

Q: From the experiment, it was found that the external pressure was 1.05 atm at 30.0 °C, and the volume…

A: Metal reacts with acid to given Hydrogen gas.  To calculate the pressure of dry air , pressure of…

Q: A sample of gas of mass 3.22 g  occupies a volume of 442 mL  at 58 oC  and 0.18 atm  pressure. What…

A: The gaseous state is the state of matter with least intermolecular force of attraction between…

Q: 7. A gas With à võlumé öf а pressure of 205kPa is allowed to expand to 16.0L. What is the new…

A: We will use Boyle's law to get the answer

Q: Assuming that a 800 mg gas occupying a volume of 1,100 ml at a pressure of 1,600 mmHg and a…

A: Volume = 1100ml = 1.1L  Pressure = 1600 mmHg = 2.1052 atm  T = 75oC =  75 + 273K = 348K  Gas…

Q: What is the molecular weight of a gas which has a density of 2.25 g / L at 20.0oC and 1.12atm?

A:

Q: The density of a gaseous compound was found to be 1.23 g/L at 330. K and 0.197 atm. What is the…

A:

Q: You have an equimolar mixture of the gases SO2 and O2, along with some He, in a container fitted…

A: Given: equimolar mixture of the gases SO2 and O2 along with some He, in a container fitted with a…

Q: 3. What is the temperature of 1.2 moles of Helium gas at 1950 mm Hg if it occupies 15,500 ml of…

A: Combine Gas law of ideal gas -PV = nRTwhou volume of n mol of gas is V at pressure P andtemperature…

Q: 2.15g gas occupies 7.50 x 102mL at STP.  What is molar mass of gas?

A:

Q: 7. A sample of an ideal gas has a volume of 2500 ml at STP. What is the volume if the pressure is…

A:

Q: 4. What volume would be occupied by a gas that has a pressure of 0.950atm if its volume was 1.50L at…

A: Given: Case I:Volume of gas, V1= 1.50LPressure of gas,P1=1.16 atmCase II:Volume of gas, V2=…

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.