A self-contained underwater breathing apparatus uses canisters containing potassium superoxide. The superoxide consumes the CO₂ exhaled by a person and replaces it with oxygen. 4 KO₂ (s) + 2 CO₂(g) 2 K₂CO3(s)- 3 O2(g) What mass of KO₂, in grams, is required to react with 19.9 L of CO₂ at 23.0°C and 869 mm Hg? Mass= 9

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Q: What volume of ammonia (NH)3 is formed if 8.84 x 10^21 molecules of carbon dioxide are also produced

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Q: If 1.5234 grams of H2C2O4·2H2Ois dissolved in water to prepare a0.250 L solution, identify the…

A: Given that, the mass of compound H2C2O4.2H2O = 1.5234 g Volume of solution that has to be prepared…

Q: Volume L

A:

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Q: P4(g) + Br2(g) --> PBr3(g) What volume of phosphorus tribromide will be produced at 22 oC and…

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A:

Q: how many moles of oxygen are required to make 3.8 moles of water?

A:

Q: 25 g of hydrogen chloride have been treated with 50 g of manganese dioxide, obtaining manganese (II)…

A: Volume of chlorine obtained is: 4.31 LExplanation:

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A: The answer to the following question is given as -

Q: (References] An 18.6 mL volume of hydrochloric acid reacts completely with a solid sample of MgCOg.…

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Q: A Haber process reactor contains 25.0% nitrogen and 75.0% hydrogen for the synthesis of ammonia.…

A:

Q: What volume of O2 (at 273 K, 1.00 atm) forms when 100 g of KClO3 decomposes according to the…

A:

Q: 93.3 mL of dry Gas A, at 21°C and an atmospheric pressure of 0.987 atm, reacted with 18.6 mL of a…

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Q: 2KClO3 (s) → 3O2(g) + 2 KCl(s) How many grams of potassium chlorate are needed to produce 38.2 L of…

A:

Q: What volume of CO₂ gas at 1.000 atm and 800 K could be produced by the reaction of 45.0 g of CaCO,…

A: n = m/MWm = mass in gramsn = number of molesMW : molar mass in g/molnCaCO3  =  m/MW        = 45 g…

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Q: 11. In the early study of air composition, Ramsey in 1894 separated water vapor, nitrogen, oxygen…

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A:

Q: 6. If excess carbon is present in a container that originally has 1:1 of CO and CO2 and no other…

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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.