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 (g) of NaN3 is required to provide 40.0 L of N2 at 25.0°C and 763 torr? O 1.64 O 107 O 160 O 71.1

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: What is the total volume of gaseous products, measured at 350°C and 759 torr, when an automobile…

A: (a) Mass of C8H18 = 81.7 g Molar mass of C8H18 = 114.224 g/mol Moles of C8H18 =MassMolar mass=81.7…

Q: (a) What is the total volume of gaseous products,measuredat 350C and 735 torr, when an automobile…

A: (A) The component of gasoline, i.e. the octane (C8H18) when burnt in presence of oxygen, it gives…

Q: A piece of dry ice (solid carbon dioxide) with a mass of 5.50 g is placed in a 10.0 L vessel that…

A: Total pressure :- 1.233 atm

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: Q2. A piece of dry ice (solid carbon dioxide) with a mass of 5.50 g is placed in a 10.0 L vessel…

A:

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

A:

Q: One compound under investigation for use as a lightweight rocket fuel is dimethylhydrazine (60.10…

A: Given reaction is  (CH3)2N2H4(l) + N2O4(l) -----> 3N2(g) + 4H2O(l) + 2CO2(g)  Mass of (CH3)2N2H4…

Q: The following combustion reaction is done with 0.225 g of ethylene, C2H4. C2H4 (g)  + 3 O2 (g)  → 2…

A: Number of moles of ethene and carbondioxide can be calculated as follows:

Q: Phosphorus trichloride is important in the manufacture of insecticides, fuel additives, and flame…

A: To find: (a) What different molecular masses (in amu) can be found for PCl3? (b) Which is the most…

Q: Pentane burns in oxygen according to the following balanced equation:C5H12 (l) + 8 O2 (g)  5 CO2…

A:

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

A:

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

A: Volume of CH4 = 6.55 L  Temperature = 25°C = 298 K  pressure = 740 torr = 0.97369 atm

Q: 1. Chorine is widely used to purify municipal supplies water and to treat swimming pool waters.…

A: We are authorised to solve only first three subparts of a question. Please post rest of the subparts…

Q: The combustion of octane, C,H8, proceeds according to the reaction shown. 2C,H13(1) + 25 0,(g) → 16…

A: The equation for ideal gases holds relation among the variables P (pressure), n (moles), V (volume),…

Q: When natural gas is heated to 375°C, the sulfur it contains is converted to hydrogen sulfide. The…

A: Recall the given reaction,                                    H2S g  +  2 NaOH s  →  Na2S s  +  2…

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: A chemist weighed out 5.14 gm of a mixture containing unknown amounts of BaO (s) and CaO(s) and…

A: Given values are the following. Pinitial of CO2=750 torr=750760 atm=0.987 atmPfinal of CO2=230…

Q: D. 2,3.1 10. What volume will a 2.0 mol of axygen gan occupy at STP? A 20.4 L B. 44.8L C. 44.81 L D.…

A: Ideal gas are assumed to have negligible intermolecular forces. Dalton's law of partial pressure…

Q: Small quantities of chlorine can be prepared in the laboratory by the reaction described by the…

A:

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: CH3OH can be synthesized by the following reaction.CO(g)+2H2(g)→CH3OH(g) What volume of H2 gas (in…

A: According to the question, methanol is prepared by the given reaction.From this reaction, 2 moles of…

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: 0.360 g of a diatomic gas occupies 125.0 mL at 23.0oC and 750. torr. What is the  molar mass of the…

A:

Q: If 3.87 g Ar are added to 2.64 atm He in a 2.00 L cylinder at 27.0 °C, what is the total pressure of…

A: The number of moles of argon is calculated as follow 1 mole of argon = 39.95 g X mole of argon =…

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: Hemoglobin is the protein that transports O₂ through the blood from the lungs to the rest of the…

A: Given,

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: 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…

A:

Q: Chlorine can be prepared in the laboratory by the reaction of manganese dioxide with hydrochloric…

A:

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

A: (a) The grams of Cl2 are in the sample is,The ideal gas equation is,

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: From given datas  With ideal gas equation we are calculating initial and final number of moles of…

Q: Automobile air bags are inflated with nitrogen gas, which is formed by the decomposition of solid…

A: Given that,Mass of sodium azide = 125gPressure = 756 torrTemperature = 27ºC

Q: what volume of O2 at 798 mmHg and 41 degrees C is required to synthesize 23.0 mol of NO? (b) what…

A:

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

A: 2 moles of octane give 16 moles of CO2. So, 354 mol of octane will give (8*354) = 2832 mol of CO2.…

Q: The catalytic decomposition of hydrogen peroxide yields oxygen gas and water, according to the…

A: Given,The decomposition of hydrogen peroxide yields 75.3 mL of oxygen gas collected over water at…

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

A: Given, Calcium hydride, CaH2, reacts with water to form hydrogen gas,according to the reaction as…

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

A:

Q: 8) Consider the apparatus pictured below, which consists of two containers separated by a valve.…

A: The ideal gas equation is PV=nRTP=nRTV

Q: 4. Hydrogen gas (a potential future fuel) can be formed by the reaction of methane with water…

A: Given: Volume of methane = 25.5 L Pressure of methane gas = 732 torr = 0.96316 atm temperature of…

Q: CH3OH can be synthesized by the following reaction. CO(g)+2H2(g)→CH3OH(g) What volume of H2 gas (in…

A: Given, Methanol is 23.0 gT = 273 + 90 = 363 K.Pressure = 758 mmHgMolar mass of methanol is = 32 g/…

Q: Small amounts of oxygen can be generated by the thermal decomposition of KClO 3; 2 KClO 3(s) ↔ 2…

A:

Q: Calcium hydride, CaH2, reacts with water to form hydrogen gas: CaH₂ (s) + 2 H₂O (1) - Ca(OH)2 (aq) +…

A: Please note- As per our company guidelines we are supposed to answer only one question. Kindly…

Q: In the laboratory, a chemist generated hydrogen gas via the electrolysis of water. The chemist…

A: 1 torr = 0.001 atm Therefore, 740 torr = 0.740 atm

Q: Calcium hydride, CaH2, reacts with water to form hydrogen gas: CaH2(s)+2H2O(l)→Ca(OH)2(aq)+2H2(g)…

A: The given chemical balanced equation as follows:

Q: Nitrogen and hydrogen gases react to form ammonia gas asfollows:N21g2 + 3 H21g2¡2 NH31g2At a certain…

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

Q: CaH2(s) + 2 H2O(l)  Ca(OH)2(aq) + 2 H2(g) This reaction is sometimes used to inflate life rafts,…

A: The balanced Chemical equation given in the question is - CaH2(s) + 2H2O(l) ----> Ca(OH)2(aq) +…

Q: Calcium carbide (CaC2) reacts with water to produce acetylene (C,H2), according to the following…

A: Given data contains, Volume V1 is 64.5 L. Temperature T1 is 50°C 323.15 K. Temperature T2 is…

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.