The build-up of excess carbon dioxide in the air of a submerged submarine is prevented by reacting CO2 with sodium peroxide, Na2O2. 2 Na2O2 (s) + 2 CO2 (g) → 2 Na2CO3 (s) + O2 (g) Calculate the mass of Na2O2 needed in a 24.0-h period per submariner if each exhales 240 mL CO2 per minute at 21°C and 1.02 atm

Q: MnO2(s)+4HCl(aq)⟶MnCl2(aq)+2H2O(l)+Cl2(g) How much MnO2(s) should be added to excess HCl(aq) to…

A: The given chemical reaction MnO2(s)+4HCl(aq)⟶MnCl2(aq)+2H2O(l)+Cl2(g) Suggests that 1 mol of MnO2…

Q: Wetlands can play a significant role in removing fertilizer residues from rain runoff and…

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Q: 3. How much pressure in kPa does 2 moles of nitrogen gas at 55°C exert on a container that holds 63…

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Q: Acetylenee gas can be produced by slowly reacting Calcium carbide with water. CaC2 (s) + 2H2O (l) →…

A: CaC2+2H2O→C2H2 +CaOH2moles of CaC2=mass molar mass=4564=0.70According to equation ,1 mol CaC2 form…

Q: 101. During the making of steel, iron(II) oxide is reduced to metallic iron by treatment with carbon…

A: Mass of FeO= 1.45kg. = 1.45 ×1000 gram = 1450gm Pressure=1atm Temperature=273K Volume of CO=? Volume…

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

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Q: The two isotopes of uranium, 238U and 235U, can be separated by effusion of thecorresponding UF6…

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Q: Ammonia is an important fertilizer and industrial chemical. Suppose that a volume of 683 billion…

A: 1) Calculate the number moles of ammonia formed by using ideal gas equation. Ideal gas equation is:…

Q: How long, in minutes, will it take 10.0 ml of H2 gas to effuse through a porous barrier if it has…

A: The time is to be calculated

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

A: Solution An ideal gas is outlined as a theoretical vaporific substance whose behavior is freelance…

Q: A mixture of 3.86 g of CCl4 and 1.92 g of C2H4 at 450 ºC exerts how many atmospheres of pressure…

A: Since PV = nRT  where P = pressure  V = volume of chamber in L = 30/1000 = 0.03 L n = moles  R =…

Q: Chlorine can be prepared in the laboratory by the reaction of manganesć diôXide Wilh Hyurehone aciU,…

A: Given : Volume of Cl2 = 165ml Pressure = 795torr Temperature = 298K

Q: What volume of O2 measured at 1.86 × 106Pa and 375k, is required to react entirely with 1.78 liters…

A: At same temperature and pressure, volume of gas is directly proportional to number of moles of…

Q: When heated, mercury (II) oxide (HgO) decomposes to give O2 gas. 2 HgO (s) → 2 Hg (l) + O2 (g) What…

A: From the above reaction we can see that 2 moles of HgO is decomposing to form 1 mole of O2  hence…

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: 3. The build-up of excess carbon dioxide in the air of a submerged submarine is prevented by…

A: Data of amount of carbon dioxide exhaled per minute is given: Volume of CO2= 240 mL Pressure = 1.02…

Q: Calculate the volume of CO2 at 77°F and 765 mmHg required to produce 0.100 kg of Ca(HCO3)2 by its…

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Q: A sample of Br2(g) take 10.0 min to effuse through a membrane. How long would it take the same…

A:

Q: 1A. When glucose is burned in a closed container, carbon dioxide gas and water are produced…

A: Since you have asked multiple question, we will solve the first question for you.If you want any…

Q: 74. Concentrated hydrogen peroxide solutions are explosively decomposed by traces of transition…

A: The given reaction is: 2H2O(aq)→2H2O(l)+O2(g) From this equation, it is clear that 2mol. of hydrogen…

Q: Acetylene gas can be produced by slowly reacting Calcium carbide with water. CaC2 (s) + 2H2O (l) (…

A:

Q: Butane, C4H10, is a component of natural gas that is used as fuel for cigarette lighters. The…

A: Interpretation: Butane, C4H10 is a component of natural gas that is used as fuel for cigarette…

Q: What volume would 27 grams of CO2 occupy at 19 degrees celsius, 534 mm Hg pressure?

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

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

A:

Q: At what pressure would 0.15 mole pf nitrogen gas occupy at 24 degrees Celsius and 8.9L?

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Q: A 2.135g sample of a gaseous chlorofluorocarbon occupies a volume of 315.5 mL at 739.2 torr and…

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Q: What volume of oxygen is produced at STP when 6.58 x 1024 molecules of water is decomposed according…

A: 1 mole of a molecule contains = 6.022 * 1023 molecules given molecules of water = 6.58 * 1024…

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

A:

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

A: Given data,Volume of…

Q: What volume of hydrogen at 27 °C and 723 torr may be prepared by the reaction of 8.88 g of gallium…

A:

Q: The chlorofluorocarbon CCl2F2 can be recycled into a different compound by reaction with hydrogen to…

A: Conversion of mm Hg to atm: 760 mm Hg=1 atm Calculation of no. of mol of H2 gas: PV=nRT1 atm×5336…

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

A: The balanced reaction taking place is given as, => MnO2 (s) + 4 HCl (aq) ⟶ MnCl2 (aq) + 2 H2O (l)…

Q: At what temperature will 19.4 g of molecular oxygen, O2, exert a pressure of 1820 mm Hg in a 5.12 L…

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

A:

Q: Acetylene gas can be produced by slowly reacting calcium carbide with water. CaC2(s) + 2H2O(l) ➡…

A: The given data- mass of calcium carbide = 35.0 g The pressure of the gas = 1 atm The temperature of…

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

A:

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

A: The balanced reaction taking place is given as, => MnO2 (s) + 4 HCl (aq) --------> MnCl2 (aq)…

Q: Nitrogen oxide can be generated on a laboratory scale by the reaction of dilute sulfuric acid with…

A: The number of moles (n) of a substance is determined as the ratio of the mass (m) to its molar mass…

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

A: Pressure = 765 Torr Volume = 405 mL = 0.405 L Temperature = 25°C = 298 K  Mass of MnO2 required =?

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

A: Given,Volume of chlorine to be obtained = 215mLTemperature = 250C.Pressure = 765 torr.

Q: Gaseous ammonia reacts with nitrogen monoxide gas to produce nitrogen gas and water vapor. (a) Write…

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

A:

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

A:

Q: What is the volume in liters of hydrogen gas that would be produced by the reaction of 40.6 g of Al…

A: Given :-  2 Al (s) + 6 HCl (aq) → 2 AlCl₃ (aq) + 3 H₂ (g)  Mass of Al = 40.6 g  To be calculated :-…

Q: Wetlands can play a significant role in removing fertilizer residues from rain runoff and…

A: Given nitration reaction : 2NO3-+5CO(g)+2H+(aq) →N2(g)+H2O(l)+5CO2(g)

Q: The alkali metals [Group 1A(1)] react with the halogens to formionic metal halides. What mass of…

A: The given data contains, Volume = 5.25 L Pressure = 0.950 atm Temperature = 293 K Gas constant…

Q: The reaction of magnesium nitride with water forms magnesium hydroxide and ammonia gas: Mg3N2(s) +…

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Q: If the ratio of masses of CH4, O2 and SO2 present in a container is 1:2:4 at 25°C, then the fraction…

A: Here I have shown the fraction of total pressure exerted by CH4, O2 and SO2

Q: Acetylene gas can be produced by slowly reacting calcium carbide with water. CaC2(s) + 2H2O(l) ➡…

A: The number of moles of calcium carbide that involve in the reaction is determined on substitution…

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.