Magnesium can be used as a “getter” in evacuated enclosuresto react with the last traces of oxygen. (The magnesium isusually heated by passing an electric current through a wireor ribbon of the metal.) If an enclosure of 0.452 L has a partialpressure of O2 of 3.5 x 10-6 torr at 27 °C, what mass of magnesiumwill react according to the following equation?2 Mg(s) + O2(g)------>2 MgO(s)

Q: (A) A sample of carbon dioxide gas at a pressure of 1.12 atm and a temperature of 242 °C, occupies a…

A: Part A Pressure (P) = 0.709 atmInitial temparature (T1) = 242oC = (242 + 273) K = 515 KInitial…

Q: (A) A sample of carbon dioxide gas at a pressure of 1.14 atm and a temperature of 27.1 °C, occupies…

A: Ideal gas equation:  PV = nRT  At constant T and n  PV = constant P1V1 = P2V2  P1 = initial pressure…

Q: hree containers of equal volume are filled with three different gases. The first container is…

A: Correct Option :  ( a ) the number of moles of gas in the containers are the same.

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A: Hii there, since there are multiple questions posted. We are answering first question. If you need…

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: For the reaction C+O2 =CO2 what volume of O2 gas at 25.0 degrees Celsius and 1.02 atm is required to…

A: Consider the given balanced equation as; C + O2 → CO2     Given information is as follows;…

Q: What volume of hydrogen gas is produced when 35.3 g of iron reacts completely according to the…

A: Ideal gas equation: PV = nRT P = pressureV = volumen = moles R = gas constantT = temperatureBalanced…

Q: (a) A piston at 5.4 atm contains a gas that occupies a volume of 3.5 L. What pressure would have to…

A:

Q: Consider the reaction for the production of NO2 from NO:2 NO( g) + O2( g) → 2 NO2( g)(a) If 84.8 L…

A: a) Given : The volume of oxygen is 84.8 L. The pressure is 632 mmHg. The temperature is 35∘C  that…

Q: (a) A piston at 1.7 atm contains a gas that occupies a volume of 3.5 L. What pressure would have to…

A: Since we know that, PV = constant...(Boyle's Law)... V/T = constant...(Charles law)...

Q: A sample of butane (C4H10) gas having a volume of 2.0 L at 25 °C and 1300 mm Hg was mixed with a…

A: PFA

Q: Aerosol cans carry clear warnings against incineration because of the high pressures that can…

A: Given,  Initial temperature = T1 = 30 ∘C  Final temperature = T2 = 1285 ∘C  Initial pressure = P1 =…

Q: Isooctane (C8H18) is the primary component of gasoline, which burns according to the reaction below.…

A:

Q: A 2.50 liter flask at a temperature of 28.5 °C was used to collect gaseous propane (C 3H8). After…

A: Answer:- This question is answered by using the simple concept of calculation of mass of a gas using…

Q: .If container "A" is occupied by 1.0 mole of oxygen gas (molar mass 32.0 g/mol) while container "B"…

A: Correct answer is container "A" must be larger than container "B". Avogadro's law: At the same…

Q: Consider the diagram on the left: 1.00 g H2(g) is maintained at 1 atm pressure in a cylinder closed…

A: Which sketch is best described the mixture obtained when 1.00 g He is added ?

Q: (a) A piston at 6 atm contains a gas that occupies a volume of 3.5 L. What pressure would have to be…

A: We would use gas laws ( Boyle's law , Charles' law , Gay-Lussac's law )  to solve these questions.

Q: A high altitude balloon is filled with 1.41 x 104 L of helium gas at temperature of 21 oC and 1.00…

A: For part a): According to Ideal gas equation: PV=nRT 1 x1.41 x 104 =n x 0.0820 x (273+21)…

Q: HCl can be made by the direct reaction of H2 and Cl2 in the presence of light. Assume that 3.0 g H2…

A: “Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for…

Q: When some magnesium nitride, Mg3N2 reacts with water, 22 ◦C and 0.985 atm total under pressure 758…

A: The reaction of Mg3N2 with water is given as:            Mg3N2 + H2O → MgOH2  + NH3 The balanced…

Q: 1. How many grams of iron are needed to completely consume 24.9 L of chlorine gas according to the…

A: the balanced chemical equation for the reaction is: 2Fe(s) + 3Cl2(g) → 2FeCl3(s) 2 moles of iron…

Q: If 56.2 grams of carbonic acid are sealed in a 2.00 L soda bottle at room temperature (298 K) and…

A: recall the given reaction           H2CO3aq→H2Ol+CO2(g) Find  moles of carbonic acid that contain…

Q: A neon sign is made of glass tubing whose inside radius is 1.25 cm and whose length is 5.5 m. If the…

A: Since we know that PV = nRT where P = pressure V = volume of gasn = moles of gasR = 0.0821 T =…

Q: Nhich list below is an allowable set of quantum numbers for an electron? mi m. 1 +1/2 -1 -2 b 2 -1…

A:

Q: A cylinder of volume 27.0 L is filled with 25.1 g of jobstium gas (MM = 72.21 g - mol-1)from the…

A: Given the volume of cylinder i.e. gas =27.0 Lnumber of moles of gas =0.348 moltemperature =326 Kwe…

Q: (b) A piston at 122.0°C contains a gas that occupies a volume of 2.5 L. To what temperature would…

A: A piston at 122.0°C contains a gas that occupies a volume of 2.5 L. The temperature at that would…

Q: 3. What mass of Fe is required to react with 455 mL of oxygen at 22 °C and a pressure of 725 torr…

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

Q: (a) A tank contains one mole of oxygen gas at a pressure of 6.30 atm and a temperature of 29.5°C.…

A: a) Given Conditions are as follows: Initial pressure, P1 = 6.30 atm Initial temperature, T1 = 29.5˚C…

Q: Assuming constant pressure and temperature, how many liters of oxygen gas are required to burn 5.00…

A: At standard temperature and pressure, the balanced chemical equation for the combustion of butane…

Q: Oxygen gas was collected in 500.0 mL flask at 26 oC from the catalytic decomposition of hydrogen…

A: We are given a decomposition reaction and asked to calculate mass of reactant decomposed.

Q: Automobile air bags inflate during a crash or sudden stop by the rapid generation of nitrogen gas…

A:

Q: Aluminum reacts with aqueous sodium hydroxide to produce hydrogen gas according to the following…

A:

Q: The International Space Station is equipped with a Vika Oxygen Generator which uses the following…

A: The given reaction is:Volume (V) = Pressure (P) = 0.21 atmTemperature (T) = 24.5oCGas constant (R) =…

Q: What is the pressure of 1.51 g of nitrogen gas confined to a volume of 0.105 LL at 30 ∘C?

A:

Q: (a) A piston at 2.6 atm contains a gas that occupies a volume of 3.5 L. What pressure would have to…

A: Pressure(P) = 2.6 atm, 8545 torrInitial Volume(V1) = 3.5 L, 2.5 L, 4.7 LFinal volume(V2) = 1.07 L,…

Q: Which of these compounds is named correctly? (A) MnO2 = manganese(II) oxide…

A: The name of the simple ionic compounds are given on the basis of the cationic and anionic species…

Q: Butane, C, H is used for camping stoves. If you have 108 ml of butane at 715 mm Hg and 10, 25 C,…

A: Introduction If the values of volume of gas, pressure, and temperature are given, then we can derive…

Q: for this question. Sodium metal reacts with water to produce hydrogen gas according to the following…

A: The reaction is given as, 2 Na(s) + 2 H2O(l) → 2NaOH(aq) + H2(g) From the balanced chemical…

Q: P1A.12* Balloons are still used to deploy sensors that monitor meteorological phenomena and the…

A: (a) Volume of balloon is:

Q: a) A piston at 5.7 atm contains a gas that occupies a volume of 3.5 L. What pressure would have to…

A: Boyles law:- PV=constant Charles law:- V=KT

Q: A 6.53 g sample of mixture of magnesium carbonate and calcium carbonate is treated with excess…

A: (a) The balanced chemical equation for the reaction of magnesium carbonate with HCl is,MgCO3(s) +…

Q: For the following reaction, a chemist adds .567g of NH3 and 2.0 L of 1.50 atm of O2 gas at 22oC. How…

A: Using ideal gas equation, first the moles of O2 is determined.

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.