A self-contained underwater breathing apparatus (SCUBA) uses canisters containing potassium superoxide. The superoxide consumes the CO2 exhaled by a person and replaces it with oxygen. KO2 (5) + CO2 (g)-----> K2CO3 (5) + 02 (g) What mass of KO2, in grams, is required to react with 15.00 L of CO2 at 15.00°C and 2964 mmHg? A) 2.484 g B) 87.95 g c) 175.9 g D) 351.8 g

Q: 5. A 5L car tire is filled with N2 to a pressure of 4 atm at 18°C. (a) How many grams of N2 present…

A: Given  Volume  = 5 Liter  Pressure of N2  = 4 atm  Temperature ( T ) = 18 ℃…

Q: 10.0 L stainless steel container was charged with 4.00 atm of hydrogen and 3.00 atm of oxygen gas. A…

A: To determine the pressure in the tank at 22oC.

Q: Hydrogen gas can be produced in the laboratory through the reaction of magnesium metal with…

A: Given: Mass of Mg = 30.0 g Pressure of H2 = 780 mmHg Temperature = 26oC Molar mass of Mg = 24 g/mol

Q: 1.. (8) СаСО:(s) CaO(s) + CO2(g) -> Calculate the volume of CO2 released at 745 mmHg and 77°C, when…

A: Chemical reactions are those reactions which undergo any chemical change. Chemical reaction is…

Q: In a constant volume vessel, excessive H2 and 3.2 g O2 gas at 270 C create a pressure of 1.1…

A:

Q: Consider the reaction between solid zinc and hydrochloric acid where hydrogen gas is collected over…

A:

Q: A What is the minimum mass, in kg, of sodium chloride needed to make 2.7 x 10° L of chlorine gas at…

A: Given :-  2 NaCl(s) → 2Na(s) + Cl2(g)  Volume of Cl2 = 2.7 × 105 L  To calculate :-  Mass of NaCl…

Q: [References) Iron carbonyl can be made by the direct reaction of iron metal and carbon monoxide.…

A: In this question, we want to determine the theoretical yield of the Product. How we can determine,…

Q: Given the following equation: Mg(s) + 2HCl(aq) --> MgCl2(aq) + H2(g) After the reaction was…

A:

Q: In a bromine-producing plant, how many liters of gaseous elemental bromine at 253°C and 0.868 atm…

A:

Q: 8 How many kilograms of sodium are needed to produce 2.24 L of hydrogen collected at 23°C and 92.5…

A: Given-> Volume = 2.24 L T = 23°C = 23 + 273 = 296 K P = 92.5 kpa  = 92.5 × 0.01 atm = 0.925 atm

Q: Consider the reaction. TÍCI, (1) + 0,(g) –→ TiO,(s) + 2 Cl,(g) What mass of TiCl, (189.679 g/mol)…

A: The mass of TiCl4 required to produced 12.53 L of Cl2 at STP condition is to be calculated. Given:…

Q: A 27.4-mL volume of HCl solution reacts completely with 59.0 mL of aqueous Na2CO3.  The volume of…

A: According to ideal gas law, PV = nRT where P = pressure of CO2 in atm = 725 / 760 = 0.954 atm…

Q: 5.) What volume of Chlorine gas at a pressure of 1 atm and a temperature of 20 °C is required to…

A:

Q: Volume L

A:

Q: A 0.0665 g sample of aluminum metal reacts with hydrochloric acid to give 90.5 mL of hydrogen gas at…

A: Since we only answer up to 3 sub-parts, we’ll answer the first 3. Please resubmit the question and…

Q: The airbags that protect people in car crashes are inflated by the extremely rapid decomposition of…

A:

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

A: Molar mass of P4 = 124 g/mol Hence moles of phosphorus reacting = mass / molar mass = 48.5 / 124 =…

Q: The equation for the preparation of Na,PO, from NaOH and H,PO, is shown below. 3NAOH(aq) + H,PO,(aq)…

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Q: The CO2 that builds up in the air of a submerged submarine can be removed by reacting it with sodium…

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Q: Oxygen gas generated by the decomposition of potassium chlorate is collected over water at 25 °C in…

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Q: Consider the reaction: 2 NiO(s) ---------->2 Ni(s) + O2(g) If O2 is collected over water at…

A: O2 is collected over water at 40.0°C and a total pressure of 745 mmHg To calculate the volume of gas…

Q: The industrial production of nitric acid (HNO3) is a multistep process. The first step is the…

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Q: A 2.20 L container at 53.6 °C contains 6.21 g of N2O3(g). The N2⁢O3 gas decomposes completely,…

A: Volume of container V = 2.20 L  Temperature T = 53.6 degree C = 53.6 + 273.15 K = 326.75 K  Mass of…

Q: 4.8 g of an inorganic metal oxide ore mainly contains 93% of Nickel (III) oxide which decomposes to…

A: The balanced equation is   2 Ni2O3 (s) -------> 4 Ni (aq) + 3 O2 (g) Mass of ore = 4.8 g Mass…

Q: 2. NażCO3(s) + 2 HCl(aq) → 2 NaCl(aq) + H20(1) + CO2(g) Calculate the volume of CO2 released at 745…

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

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Q: Given the equation: Zn(s) + 2 HCl(aq) -> ZnCl2(aq) + H2(g) If 520 mL of H2 is collected over water…

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Q: iron ( s ) + chlorine ( g ) ---> iron(III) chloride ( s ) How many grams of iron are needed to…

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Q: Calculate the volume of 1.62g of Helium gas at 25.670C and 872 mmHg.  (R = 0.0821 atm.L/mol.K

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Q: Liquid chlorotribromomethane has a density of 2.71 g/mL. A barometer is constructed using…

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

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

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Q: What mass of neon gas would be required to fill a 2.00 L Flask to a pressure of 733 mm of Hg at 25…

A: Given data,  Volume of flask (V) = 2.00 L  Pressure (P) = 733 mm Hg =(733/760) atm = 0.964 atm…

Q: Consider the following gas phase reaction. 4HCl(g) + O2(g) -> 2Cl2(g) + 2H2O(g) What mass of…

A: We have to calculate the mass of Cl2 produced from 400 ml of HCl measured at STP.

Q: How many grams of iron are needed to produce 13.0 L of hydrogen gas according to the following…

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Q: When aluminum is placed in concentrated hydrochloric acid, hydrogen gas is produced. 2 Al(s) + 6…

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Q: A 2.53 L container at 74.1 °C contains 6.31 g of N2O3(g). The N2O3 gas decomposes completely,…

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Q: 1. A student following the procedure described in this module collected the following data: mass…

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Q: Determine the total pressure in the flask when 1.02 atm of O2 is added to a 1.95 L flask containing…

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Q: 9. a) You have determined experimentally that at standard temperature and pressure (0 °C and 1 atm)…

A: For ideal gas the equation of state is :  PV = nRT = (W/M)RT  Or, M = WRT/PV ...(1)  Here, W =…

Q: To the nearest 0.1 g, how many grams of a candle wax from a different brand of candle can be burned…

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Q: A reaction is carried out using 0.0754 g of magnesium and an excess of HCl(aq), and the H2 gas is…

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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.