Concentrated hydrogen peroxide solutions are explosively decomposed by traces of transition metal ions (such as Me or Fe): 2H2O2(aq) -> 2H2O(l) + O2(g) What volume of pure O2(g), collected at 25°C and 748 torr, would be generated by decomposition of 112 g of a 50.0% by mass hydrogen peroxide solution? Ignore any water vapor that may be present.    Volume = _______ L

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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.…

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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…

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

Q: A gas mixture contains O2, N2, and Ar at partial pressures of 125, 175, and 225 mm Hg, respectively.…

A: Given details, At partial pressures, P(O2)=125 mm HgP(N2)=175 mm HgP(Ar)=225 mm Hg Then, the total…

Q: Dilute aqueous hydrogen peroxide is used as a bleaching agent and for disinfecting surfaces and…

A: Given: Volume of solution= 0.100L To find: Mass of hydrogen peroxide

Q: A. A 40.0 gram-sample of methanol, CH4O is mixed with 60.0 grams of ethanol, C2H60. What is the mole…

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

A: Given Temperature = 25 oC = (273+25)K = 298 K Pressure = 705 torr = 705/760 = 0.927 atm Volume = 285…

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

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

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Q: Everything needed is provided. A cylinder with a volume of 50.0 L contains a mixture of argon and…

A: Given : mole fraction of H2 gas in cylinder = 0.10  Total pressure of gaseous mixture = 120 atm…

Q: A 1.325 g sample of an unknown vapor occupies 368 mL at 114°C and 946 mm Hg. The empirical formula…

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Q: The brewing industry uses yeast to convert glucose to ethanol. The baking industry uses the carbon…

A: Balanced  reaction  C6H12O6(s)   →yeast     2C2H5OH(l) + 2CO2(g) mass of C6H12O6 = 100.0 gm moles of…

Q: How many liters of HCl gas, measured at 30.0 °C and 745 torr, are required to prepare 1.25 L of a…

A: Molarity (M)= moles of solute (mol)Volume of solution (L)⇒ moles of solute =…

Q: 5. Which of the following statements is FALSE according to the gas laws? a. Vc 1/P at constant…

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Q: A gaseous mixture contains 421.0 Torr H₂(g), 339.1 Torr N₂(g), and 89.5 Torr Ar(g). Calculate the…

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

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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: If an ideal gas initially at 0.8 bar and 1.7 L is compressed at constant temperature to a volume of…

A: An ideal gas initially at 0.8 bar and 1.7 L is compressed at constant temperature to a volume of 0.9…

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

A: Given,Volume of Cl2 gas, V = 175 mL = 0.175 L    (1 mL = 0.001 L)Temperature, T = 25 °C = (25 + 273)…

Q: Rank the following gases from least dense to most dense at 1.00 atm and 298 K: SO2, HBr, CO2.…

A: Given,SO2,HBr,CO2At 1.00 atm and 298 K

Q: what is the mole fraction of C,H;OH when 43.7 g of a C,H;OH are mixed with 86.8 g of water ?

A: Given information,    Mass of C2H5OH = 43.7 g    Mass of water = 86.8 g

Q: What pressure of gas is produced from the reaction of 78.3 g of Zn with 125 mL of 12 M HCI in a 2.6…

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Q: The volume of a sample of pure HCl gas was 189 ml at 25°C and 108 torr. It was completely dissolved…

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Q: A 0.338-g sample of gas occupies 125 mL at 60. cm of Hg and 25°C. What is the molar mass of the gas?

A: It is given that the mass of the sample is 0.338 g and occupies 125 mL at a pressure of 60 cm Hg at…

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

A: Given balanced equation is MnO2(s) + 4HCl(aq) ------> MnCl2(aq) + 2H2O(l) + Cl2(g) From balanced…

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

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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: What is the molar concentration of the cleaning solutionformed when 10.0 L of ammonia gas at 33°C…

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Q: Use the standard molar volume of a gas at STP (1mol/22.4L) to find how many moles of methane (CH4)…

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Q: Hydrogen peroxide was catalytically decomposed, and 75.3 mL of oxygen gas was collected overwater at…

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A: Mole fraction of the oxygen gas = 0.050 Partial pressure of the oxygen gas = 0.20 atm

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Q: A clean, dry and open empty flask is being heated in a water bath. Under which conditions before or…

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Q: How many liters of CO2 measured at 26°C and 767 torr are produced in the combustion of 125 mL of…

A: The combustion reaction of propanol is given as: C3H7OH (g) + 92 O2 (g) → 3 CO2 (g) + 4 H2O (g) ⇒3…

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

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

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

A: Given:Volume = 145 mL = 0.145 L.Temperature = 25 oC = 298 KPressure = 735 torr = 0.9671 atm.

Q: Calculate the volume of nitrogen dioxide gas in mL required to make 10.0 g nitric acid at 1.80 atm…

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Q: Suppose that a 26.5-mL volume of HCl solution reactions completely with 55.0 mL of aqueous Na2CO3.…

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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.