Automobile air bags use the decomposition of sodium azide as their source of gas for rapid inflation:2NaN3(s) → 2Na(s) + 3N2(g)What mass of NaN3 is required to provide 30.0 L of N2 at 25.0 ºC and 758 torr? a. 119 g b. 79.3 g c. 160 g d. 1.22 g e. 53.0 g

Q: Calcium hydride, CaH2, reacts with water to form hydrogengas:CaH2(s) + 2 H2O(l)------>Ca(OH2)(aq)…

A: Since moles of H2 need to be generated can be calculated using PV = nRT where P = pressure in atm…

Q: Chlorine is widely used to purify municipal water supplies and to treat swimming pool waters.…

A: According to law of Ideal gas,  PV = nRT P= Pressure of gas, V= volume of gas           n= moles of…

Q: Lithium hydride reacts with water as follows: LiH(s) + H,0() - LIOH(aq) + H,(g) During World War II,…

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Q: You placed 6.35 g of a mixture containing unknown amounts of BaO(s) and MgO(s) in a 3.50-L flask…

A: Number of moles of CO2 in the flask initially is calculated using Ideal Gas equation as follows,1…

Q: The combustion of octane, C8H18,C8H18, proceeds according to the reaction shown.…

A: Given,Moles of ethane, C8H18 = 402 molPressure, P = 0.995 atmTemperature, T = 37.0 ∘C = 273 + 37 =…

Q: The reaction between hydrogen gas and nitrogen gas produces ammonia gas according to the reaction:…

A: 1mole of any gas contain 22.4 liter at STP.

Q: Nitrogen dioxide is used industrially to produce nitric acid,but it contributes to acid rain and…

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Q: The combustion of octane, C,H,g, proceeds according to the reaction shown. 2C,H131) + 25 0,(g) → 16…

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Q: The combustion of octane, C, H, proceeds according to the reaetion shown. 18 2 C,H18() + 25 O,(g) →…

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Q: The final step in the Claus method for making sulfur is SO2 (g) + 2H2S (g) → 3S(s) + 2H2O (l). What…

A: Claus method reaction:

Q: The combustion of octane, C8H18,C8H18, proceeds according to the reaction shown.…

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Q: Airbags rapidly produce nitrogen gas though reactions like this one: 2 NaN3 (s)→2 Na (s) + 3 N2 (g)…

A: The given chemical reaction is as follows,2 NaN3 (s)→2 Na (s) + 3 N2 (g)amount of NaN3 for the…

Q: During the conbustion of coal, FeS2 is a contaminant that also burns and produces harmful sulfur…

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Q: Chlorine is widely used to treat swimming pool water. The volume of a sample Chlorine gas (Cl2) is…

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Q: Nitrogen and hydrogen gases react to form ammonia gas asfollows:N2(g) + 3 H2(g)----->2 NH3(g)At a…

A: The required reaction is given below. Ideal gas law tells that volume is proportional to the number…

Q: Hydrogen gas (a potential future fuel) can be formed by the reaction of methane with water according…

A: Given data contains, Volume of methane gas is 25.5L. Pressure of methane gas is…

Q: 2 C8H18(l) + 25 O2(g) ----> 16 CO2(g) + 18 H2O(g) The above reaction is the reaction between…

A: Mass of C8H18 = 1 gallon  = 4000 g  Molar mass of C8H18 = 114 g/mol   No.of moles =  mass / molar…

Q: Sulfur trioxide, SO3, is produced in enormous quantities each year for use in the synthesis of…

A: Given: 1) Temperature =340°C =(340+273)K 2) Pressure = 6.75 atm 3) Mass of sulfur = 5.70 g 4)…

Q: Chlorine is widely used to purify municipal water supplies and to treat swimming pool waters.…

A: a. The mass of chlorine in sample is calculated as,

Q: A certain laser uses a gas mixture made up of 9.00 g HCl, 2.00 g H2 and 165.0 g of Ne. What pressure…

A: Given, Mass of HCl = 9.00 g Mass of H2 = 2.00 g Mass of Ne = 165.0 g Volume, V = 75.0 L Temperature,…

Q: You placed 6.35 g of a mixture containing unknown amounts of BaO(s) and MgO(s) in a 3.50-L flask…

A: The total mass of the mixture = 6.35g Consider the mass of BaO and MgO in the unknown sample be 'x'…

Q: Chlorine is widely used to treat swimming pool water. The volume of a sample Chlorine gas (Cl2) is…

A: Hi,According to our community guidelines, we can only answer one subpart, since they are not…

Q: Oxygen gas can be prepared by heating potassium chlorate according to the following equation:…

A: The partial pressure of O2, PO2, and the number of moles of O2 is calculated as shown below.…

Q: Methane burns according to the following equation. CH4 (g) + 202(3) - CO2(g) + 2H20 (3) The…

A: The combustion reaction of methane (CH4) is given by  CH4 (g) + 2 O2 (g) → CO2 (g) + 2 H2O (g)…

Q: Ammonia gas is produced by the reaction: N2(g) + 3H2(g) → 2NH3 (g). a.) How many liters of ammonia…

A: Given reaction is: N2(g) + 3H2(g) → 2NH3(g) To find: Amount of ammonia produced (in liters) from…

Q: Methane burns according to the following equation. CH4 (3) + 202 (g) →CO2 (g) + 2H2O (3) The…

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Q: You placed 6.35 g of a mixture containing unknown amounts of BaO(s) and MgO(s) in a 3.50-L flask…

A: Convert the given temperature that is 30 degree Celsius in kelvin as shown follows:T (K) = (30 +…

Q: You placed 6.35 g of a mixture containing unknown amounts of BaO(s) and MgO(s) in a 3.50-L flask…

A: Given the total mass of BaO and MgO = 6.35 g Let number of moles of BaO = a number of moles of MgO =…

Q: During a collision, automobile air bags are inflated by the nitrogen gas formed by the explosive…

A: Ideal gas equation is the equation that gives the relationship between the pressure, temperature,…

Q: 65 g of CaC2 is treated with 38 g of H2O. What volume of C2H2 gas, measured at 22˚C and 770 torr…

A: Acetylene is common gas and has a wide application in industry. It is synthesized by easy way using…

Q: 9. What is the mass of the solid NH4Cl formed when 73.0 g of NH3(g) are mixed with an equal mass of…

A: Observing the given reaction shows that 1mole of NH3 reacts with 1 mole of HCl and forms 1 mole of…

Q: 6.17) methane (CH4), the main component of Natural Gas, is also used in heating and cooking. The…

A: Given Reaction                             CH4(g)    +   2O2(g)     →   CO2(g)     +    2H2O(s) No.…

Q: The combustion of octane, C8H18, proceeds according to the reaction shown.…

A: The combustion reaction of octane, C8H18 is -   2C8H18(l) + 25O2(g)---> 16CO2(g) + 18H2O(l) From…

Q: The combustion of octane, C, H,8. proceeds according to the reaction shown. 2C,H,,(1) + 250,(g) - 16…

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Q: The combustion of octane, C,H, proceeds according to the reaction shown. 18 2C,H18(0) + 25 0,(g) 16…

A: We can solve the problem by considering the ideal gas law.  PV = n. R. T Where  P = pressure of the…

Q: How many grams of water are produced from the combustion of 56 L CH4 at STP

A: The amount of water forming in combustion of methane can be calculate by using stoichiometric…

Q: A common way to make hydrogen gas in the laboratory is to place a metal such as zinc in hydrochloric…

A: Given,Volume (V) = 147.6 ml = 0.1476 LP = 743 mm Hg

Q: Calcium hydride, CaH2, reacts with water to form hydrogen gas:  CaH2(g) + 2 H2O(l) ---> Ca(OH)2(aq)…

A: Stoichiometry, in balanced chemical reaction is defined by the ratio at which reactants are reacting…

Q: Calcium hydride (CaH2) reacts with water to form hydrogen gas: CaH2 (s) + H2O (l) -------- Ca (OH) 2…

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Q: Fat is a complicated mixture but has the approximate formula of C56H10806- Consider the following…

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Q: The following reaction was done at 20°C and 750 torr. What is the volume of H2 gas generated from 35…

A: Given that: temperature, T = 20 oC = 20+273.15 = 293.15 K pressure = 750 torr vapor pressure = 17.5…

Q: Automobile air bags use the decomposition of sodium azide as their source of gas for rapid…

A: Given,  Volume, V = 40 L  Temperature, T = 25 °C = (25+273) = 298 K  Pressure, P = 763 torr =…

Q: The complete combustion of methane, CH4, can be represented by the equation         CH4 (g) + 2 O2…

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Q: The complete combustion of methane, CH4, can be represented by the equation CH4 (g) + 2 O2 (g) --->…

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Q: Consider the formation of nitrogen dioxide from nitric oxide and oxygen:  2 NO(g) + O2(g) → 2 NO2(g)

A: The chemical reaction is : 2NO(g) + O2(g) --->  2NO2(g) According to the balanced chemical…

Q: Aluminum metal reacts with hydrochloric acid to produce hydrogen gas. 2 Al (s) + 6 HCl (aq) --> 2…

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Q: You placed 6.35 g of a mixture containing unknown amounts of BaO(s) and MgO(s) in a 3.50-L flask…

A: The conversion of temperature into Kelvin units and pressures into at units can be done as,

Q: The combustion of octane, C,H 8, proceeds according to the reaction shown. 2 C,H18(1) + 25 0, (g) →…

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

Q: Oxygen gas can be prepared by heating potassium chlorate according to the following equation:…

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.