100.0 mL of 3.00% hydrogen peroxide decomposed with yeast as a source of catalyst. Oxygen was collected in the amount of 0.985 L at standard atmospheric pressure and 20oC. what was the percent yield of this procedure? (A)   47%                    (B)       93%                 (C)    102%                 (D)    71% (E)   None of the above. If so, what iis your answer?

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A: The pressure, volume and temperature of a gas are related by ideal gas equation which is given as:…

Q: If 18.3g N2O2 occupies 5.4 L at 250 K, what is the volume if all of the N2O4 is converted to NO2 at…

A: The complete reaction is given as, N2O4 →2 NO2

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A: Since we know that PV = nRT  where P = pressure  V = volume of gas n = moles of gas R = 0.0821  T =…

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A: [5.]  m = 20.0 g  M = 39.948 g/mol  n = m/M = 20.0 g / 39.948 g/mol  = 0.5006 mole  At STP, T = 273…

Q: A student collected 26.86 mL of H2 over water at 20.00 °C. The water level inside the collection…

A: Volume of gas V = 26.86 mL = 0.02686 L Temperature T1 = 20.00 °C = 20.00 + 273 K = 293 K  Barometric…

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A:

Q: 1%). If the atmospheric pressure is given as 680 mm. rtial pressure of oxygen and nitrogen in air?

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A: Given, Pressure, P = 11 torr = 0.0145 atm Volume, V = 385 mL = 0.385 L Temperature = 25.0 oC = 298 K…

Q: If A 9as at 25°c occupies 3.5L at a pressure of 0.99 atm, what would be the volume if the pressure…

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A: Given: P1=101×105 PaV1=13 m3T1=15°C=288 k

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Q: Whitney’s lung capacity was measured as 3.4 LL at a body temperature of 37 ∘C and a pressure of 745…

A: Ideal gas equation is PV = nRT  P = pressure  V = volume  n = moles of gas R = gas constant = 0.0821…

Q: Solid potassium is reacted with water. What volume of hydrogen gas is produced at 18ºC and 1.08 atm…

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Q: 42. What mass of KCIO, will produce 250 mL of O2 gas, collected by water displacement, at an…

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A:

Q: What volume of O, at 798 mmHg and 33 °Cis required to synthesize 20.0 mol of NO? Express your answer…

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A: solution- supoose mixture contains=x grams of Xe Mixture of contains = x g of XeSo the weight of NO2…

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Q: (b) A sample of neon has a volume of 0.730 dm3 at a temperature of 21.0 °C. and pressure of 102.5…

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Q: What volume would 20.0 moles of sulfur dioxide occupy at 75.3 °C with a pressure of 2.72 atm?

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Q: Please see attached picture

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Q: Calculate the density (in g/L) of nitrogen at 737.0 mmHg and 31.518°C.

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A:

Q: 18 Cording to the reaction shown. 2 C,H0) + 25 0,(g) – 16 CO, (g) + 18 H,0() 18 If 313 mol of octane…

A:

Q: 2. A 10.0L flask contains 1.031g 0, and 0.572g CO, at 18°C, what is tha mole fraction of oxygen?

A: " Dear student , as you posted two different questions as per guidelines we shall solve first…

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A:

Q: If 5.15 g of Ag2O is sealed in a 75.0-mL tube filled with 760 torrof N2 gas at 32 °C, and the tube…

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Q: 2. What is the mass (g) of a piece of magnesium wire that produces 43.8 ml of hydrogen gas collected…

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Q: For the reaction614C ⟶714N + ?, if 100.0 g of carbon reacts, what volume of nitrogen gas (N2) 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.