NaN, (s) 2 Na(s) + 3 N, (g) | ny liters of nitrogen gas, N,, measured at STP are produced from the decomposition of 279 g of sodium azio

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: General: 2.0 L of O2(g) and 8.0 L of N2(g) , each at STP, are mixed together. The non-reactive…

A: Given that : The volume of oxygen gas = 2.0 L The volume of nitrogen gas = 8.0 L At STP, the…

Q: A mixture of Ne and Ar gases at a PT of 1.4atm. If there are twice as many mols of Ne as Ar, what is…

A: The mixture contains Ne and Ar in the ratio 2:1. Hence, mole fraction of Ar can be given as below,

Q: On a certain day, a laboratory barometer indicates that the atmospheric pressure is764.7 torr. A…

A: The required expression is given below.

Q: How many moles of nitrogen occupy 52.07 L at 119.09 kPa and 62.48 oC?

A:

Q: Consider the combustion reaction between 25.0 mL ofliquid methanol (density = 0.850 g/mL) and 12.5 L…

A: Number of moles can be determined as follows:

Q: Chlorofluorocarbons (CFC's) are gases that were formerly widely used in aerosols and refrigerators…

A: Given: Mass of CFC = 2.50 g. Temperature = 22 oC Pressure = 1.02 atm. And volume of flask = 500 mL =…

Q: At what temperature is the root-mean-square speed of nitrogenmolecules equal to the root-mean-square…

A: The temperature of the hydrogen molecule is given as 293 K The molar mass of N2 and H2 are 28.014…

Q: cas occupies a volume of 365 mL at 24°C and 7 t STP? mL

A: Initial Volume = 365 mL Initial Temperature = 297 K Initial pressure = 742 mmHg Final Temperature =…

Q: Chlorofluorocarbons (CFC's) are gases that were formerly widely used in acrosols and refrigerators…

A: Given: Mass of CFC = 2.50 g. Temperature = 22 oC Pressure = 1.02 atm. And volume of flask = 500 mL =…

Q: What is the density of oxygen gas at 25 degree C and 120 kPa?

A:

Q: What is the density of carbon dioxide gas at -25.2°C and 98.0 kPa?

A: It is given that:Pressure (P) = 98.0 kPaTemperature = -25.2 °C

Q: Dilute aqueous hydrogen peroxide is used as a bleaching agent and for disinfecting surfaces and…

A: Given: Volume of solution= 0.100L To find: Mass of hydrogen peroxide

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

A:

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 compressed gas cylinder of CO2 gas has a volume of 23.5 L at room temperature (25C) and a pressure…

A: Given, volume of CO2 = 23.5 L Temperature  = 25°C = (273+25) = 298 K Pressure = 650 KPa  = 650/101 =…

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: What is the density in g/L of Ar gas at STP?

A:

Q: The gas from an active volcano had the following composition in mole percent; 65 % CO,, 25% H, 5.4 %…

A: The partial pressure of a substance is equal to the product of its mole fraction and pure vapor…

Q: What volume is occupied by 0.756 mol of CO2 at 250.2 K and 769 mmHg? V =

A: The combined relation between gas laws is known as the ideal gas law or the gas equation. The…

Q: During the making of steel, iron(II) oxide is reduced to metallic iron by treatment with carbon…

A: The moles of Fe can be calculated as

Q: Consider the combustion reaction between 25.0 mL ofliquid methanol 1density = 0.850 g>mL2 and…

A: Density of the substance is equal to the ratio of mass to volume of the substance. The number of…

Q: What pressure is exerted by a mixture of 2.40 g of H2 and 10.00 gof Na at 273°C ina 10.0L container?

A:

Q: Use the ideal gas law to write the density of air in terms of pressure, temperature, and the average…

A:

Q: In our campus, there are approximately 30.000 students use 2.5 x 109 kJ of energy per day. Suppose…

A: Giveln Pressure = 9186 torr = 9186/760 atm 5.059 g CO2(g), 3.106 g H2O(l) Volume = 580ml = 0.58L…

Q: The process of wine making involves the fermentation of glucose, where 650 mL of CO2 gas was…

A: Final volume of gas can be calculated using Ideal gas equation: PV = nRT, where P is pressure, V is…

Q: A certain sample of a gas has a volume of 20.00 dm3 at 0 °C and 1.000 atm. A plot of the…

A: Given,  Volume at 0oC, Vo  = 20.00 dm3 Celsius temperature = θ Slope, m  =  0.0741 dm3 °C−1

Q: what pressure is exerted by 870.2g of CH4 in a 0.630L steel container at 240.8K?

A: According to ideal gas law  PV = nRT  where P = pressure in atm  V = volume in L = 0.63 L (given) n…

Q: In an N2 atmosphere, what temperature would a hot air balloon need to be to achieve neutral buoyancy…

A: Answer  Given that The buoyant force is equal to the weight of the displaced air

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

A:

Q: At what temperature does 1.00 atm of carbon dioxide (CO2) gas have the same density as 2.00 atm of…

A: Given: For CO2                PCO2 = 1.0 atm Mass m = 44 g/mol Temperature = ? For He PHe = 2.0 atm…

Q: A sample of nitrogen occupies 9.5 liters at 32 oC and 85.7 kPa. What would be the volume at 20 oC…

A: We can use the gas equation to calculate the volume of the gas at a different temperature and…

Q: Butane, C4 H10, is a component of natural gas that is used as fuel for cigarette lighters. The…

A:

Q: are by the min hire ? O. The total pressure exerted by a mixture of an unknown of nirogen and 0.…

A: Pressure exerted by nitrogen gas is 1.36atm.

Q: In the reaction,   MgCO3(s)⟶MgO(s)+CO2(g)MgCO3(s)⟶MgO(s)+CO2(g)   what mass of magnesium…

A: Stoichiometry of reaction.

Q: Dinitrogen monoxide can be prepared by heating ammonium nitrate, which decomposes into dinitrogen…

A: At STP , Volume of 1 mol gas = 22.4 L  From this relation we can can convert the volume of gas into…

Q: What volume of O2(g) measured at 25 °C and 760 torr is required to react with 17.0 L of ethylene,…

A:

Q: Given the following: Difference in height 55.0 mm Volume of enclosed gas (V) 0.0638 L Temperature…

A: The total barometric pressure inside the vessel is the sum of the pressure due to hydrogen gas(PH2)…

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: What volume is occupied by 0.417 mol of CO2 at 390.4 K and 871 mmHg? V=     ?L

A: Number of moles, n = 0.417 mole Temperature, T = 390.4 K Pressure, P = 871 mmHg = 1.146 atm Gas…

Q: 1. Calculate the volume of carbon dioxide adjusted to 25 °C and 1 atm, that plants need to make 1.00…

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

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: What is the density of xenon gas at 750kPa and 25°C?

A: Given, Pressure = 750kPa = 750000 pa Temperature = 25°C = 273 + 25 = 298K Formula that will be used:…

Q: In the fermentation of glucose (wine making), a volume of 780 mL carbon dioxide gas was produced at…

A: Given:V1=780mL=0.78L                             V2=?T1=273.15+37K=310.15K…

Q: A hyperbaric chamber has a volume of 1450 LL. How many kilograms of O2O2 gas are needed to give an…

A:

Q: Concentrated hydrogen peroxide solutions are explosively decomposed by traces of transition metal…

A: Given: Temperature = 298K Pressure =744torr

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.