When hydrogen peroxide decomposes, oxygen is produced: 2H,0 + 0,(g)What volume of oxygen gas at 25°C and 1.00 atm is produced from the decomposition of 25.00 mL of a 30.0% (by mass) solution of hydrogen peroxide (d = 1.05g/mL)? 2H,O,(aq) →

Q: Some indoor air-purification systems work by converting a little of the oxygen in the air to ozone,…

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

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

A: Decomposition reaction is a reaction in which a single reactant decomposes to form two or more…

Q: 1) A gas mixture at 20.0°C and 2.0 atm contains 0.40 mol of H2, 0.15 mol of 02, and 0.50 mol of N2.…

A: 1- First calculate the mole fraction of H2 gas :  Total moles = ( moles of Hydrogen + moles of…

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

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Q: Using the Ptotal from question #1 and the partial pressure of Gas B, determine the mole fraction,…

A: Hi. Since your question has multiple parts, we will solve the second question for you. If you want…

Q: For the given reaction, what volume of POCI, can be produced from 2.4 L of O,, assuming an excess of…

A: 1mole  of any gas weighs its molar mass and occupy 22.4 L of  volume at STP

Q: 6. What is the mole fraction of calcium chloriIde in 3.35 m CaCl, (aq)? The molar mass of CaCl, is…

A: Given: Molality of CaCl2 = 3.35 m Molar mass of water = 18.02 g/mol

Q: An ideal gas originally at 0.85 atm and 65°C was allowed to expand. until its final volume,…

A: Ideal gas law ,   Ideal gas law state the relation between the pressure, temperature, volume and…

Q: The flame produced by the burner of a gas (propane) grill is a pale blue color when enough air mixes…

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Q: 1. What is the % yield of hydrogen if 5.93L are collected in a mylar balloon at 1.50 atm & 19°C from…

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Q: A commercial mercury vapor analyzer can detect, in air, concentrations of gaseous Hg atoms (which…

A: \

Q: 8. Assuming constant volume, the pressure of a sealed system is 25.0 kPa at 25.0 °C. If the…

A: At constant volume, the pressure of the gas is directly proportional to the temperature. This law is…

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

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Q: Calculate the volume of dry co2 produced at body temperature (37 ∘c) and 0.970 atm when 25.5 g of…

A: The formation of carbon dioxide from the glucose is shown below. C6H12O6 (aq) + 6O2(g) → 6CO2(g) +…

Q: Suppose you are given two 1-L flasks and told that one contains a gas of molar mass 30, the other a…

A: From ideal gas equation,

Q: The gas from an active volcano had the following composition in mole percent; 65 % CO,, 25% H, 5.4 %…

A: The partial pressure of a substance is equal to the product of its mole fraction and pure vapor…

Q: Phosphorus trifluoride is a highly toxic gas that reactsslowly with water to give a mixture of…

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Q: Carbon dioxide can be generated by the reaction of hydrochloric acid with calcium carbonate. How…

A: moles of CaCO3 taken = mass / molar mass of CaCO3  = 32.1 / 100 = 0.321 moles of HCl taken =…

Q: What quantity in moles of chlorine gas at 12.0 celsius and 33.3atm would occupy a vessel of 27.5L

A: Given :  Pressure = 33.3 atm  Volume = 27.5 L  Temperature = 12.0°C  To calculate :-  Number of…

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

A: The question deals with the mole concept and role of limiting reagent, a substance which acts as a…

Q: What is the volume (in L) of carbon dioxide at 1.00 atm and 298.15 k are released from a car's…

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Q: IA the "Methode Champenoise," grape juice is fermented in a wine bottle to produce sparkling wine.…

A: The 12 percentage v/v corresponds to 0.12 milliliters of ethanol. The total volume of the solution…

Q: gas. Assuming a sufficiently strong reaction vessel how much HCI (in atm) can be formed when…

A: Chlorine gas undergo free radical reaction when it is exposed UV light due to the presence of weak…

Q: At 22oC and 0.998 atm, what is the theoretical volume (in mL) of hydrogen gas produced when 0.45g of…

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Q: What is the pressure in kPa of 50.0 g of H₂ in a 2.00 L container at 20.0 ºC?

A: Given data is as follows: The mass of H2 = 50.0 g The volume of the container = 2.00 L The…

Q: An excess of hydrochloric acid is added over 10g of marble (impure CaCO,). A reac- tion takes place…

A: a) The chemical equation is given as: CaCO3(s)+2HCl(aq)→CaCl2(aq)+H2O(l)+CO2(g) The volume of CO2…

Q: What is the equivalent pressure of 0.900 atm in units of mm Hg?

A: Given :- pressure = 0.900 atm  To calculate :- pressure (in mm Hg)  1 atm = 760 mm Hg

Q: What is the volume (in L) of carbon dioxide at 1.00 atm and 298.15 K are released from a car's…

A: Amount of product formed calculation using stoichiometric coefficients

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: What is the partial pressure of SO2 at a concentration of 41000 PPM at STP?

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Q: Suppose that a 26.4mL volume of HCl solution reactions completely with 55.0 mL of aqueous Na2CO3.…

A: Balanced chemical equation: 2HCl +  Na2CO3   ----->   2NaCl  +  H2O  +  CO2 Number of HCl = 2 x…

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

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Q: 4. How many grams of carbon dioxide gas do you have if the gas is exerting a pressure of 2.1atm at…

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

A: 1. The decomposition of sodium azide will be as :-  2 NaN3(s) -----> 2Na(s) + 3 N2(g)  2. Mass of…

Q: 73. A 500.-mL sample of O2 gas at 24 °C was prepared by decom- posing a 3% aqueous solution of…

A: According tom Dalton's law of partial pressure, Pressure in a container = Sum of partial pressures…

Q: If 27.2 g of potassium carbonate is reacted with 125 ml of .700 M hydrobromic acid in 3.5 L vessel…

A: K2CO3 + HBr ==> 2 KBr + CO2 + H2O  Given data:  Total pressure = 757 torr Vapor pressure of water…

Q: A gaseous mixture consists of 1.26 mol of helium, 0.36 mol of neon, and 1.58 mol of argon. What is…

A: Mole fraction of a particular substance is the ratio of the moles of that substance and the total…

Q: First-generation automobile airbags were inflated by the decomposition of sodium azide (M = 65.02):…

A: Ans is 2.166gg

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A: Partial pressures of xenon and methane are given. We have to calculate the mole fractions of Xe and…

Q: 1. Calculate the volume of carbon dioxide adjusted to 25 °C and 1 atm, that plants need to make 1.00…

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Q: 5.79 ® The gas from a certain volcano had the following com- position in mole percent (that is, mole…

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Q: Sulfur dioxide reacts with oxygen in the presence of plati- num to give sulfur trioxide: 2 SO2(g) +…

A: Given data: Number of moles of SO2 = 26 mol Number of moles of O2 = 83 mol Number of moles of SO3 =…

Q: What is the partial pressure(atm) for Ar (g) in a mixture of 0.0188 mol N2, 0.02661 mol O2, and…

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Q: Let 9.642 g He, 9.768 g F2, and 9.218 g Ar be placed in a 19.2-L container at 75°C. What are the…

A: Given, Let 9.642 g He, 9.768 g F2, and 9.218 g Ar be placed in a 19.2-L container at 75°C. The molar…

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

Q: V=375mL at 1.15atm ; V= mL at 775 mmHg

A: Given data V1 = 375ml P1 = 1.15 atm= 874mmhg Where 1 atm = 760 mmhg V2 =?  P2 = 775 mmhg

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.