Copper dispersed in absorbent beds is used to react with oxygen impurities inthe ethylene used for producing polyethylene. The beds are regenerated when hot H₂ reduces the metal oxide, forming the pure metal and H₂O. On a laboratory scale, whatvolume of H₂ at 765 torr and 225°C is needed to reduce 35.5 g of copper(II) oxide?

Q: A mixture containing 0.250 mol N2 (g), 0.150 mol CH4 (g), and 0.100 mol O2 (g) is confined in a 1.00…

A: Moles of N2 = 0.250 mole CH4 = 0.150 mole O2 =0.100 mole

Q: What volume of oxygen gas (in L) is required to react completely to produce 132 L of hydrogen…

A: Solution: Balanced equation: 2 CH4 + 2 NH3  + 3 O2 → 2 HCN + 6 H2O Temperature = (1200 + 273.15 ) =…

Q: When limestone (solid CaCO3) is heated, it decomposes into lime (solid CaO) and carbon dioxide gas.…

A: The equilibrium constant of a reaction depends on the pressure of gaseous species only.For the given…

Q: Calculate the density of chlorine at 118 KPa and 75 degress Celsius.

A: given: 118 K Pa = 1.16457 atm T=75 degree Celsius =75+273 kelvin= 348 kelvin R=0.0821 L Atm / k mol…

Q: Consider the combustion reaction between 25.0 mL ofliquid methanol (density = 0.850 g/mL) and 12.5 L…

A: Number of moles can be determined as follows:

Q: In order to determine the rate of photosynthesis (the conversion by plants of carbon dioxide and…

A: Given: T = 293 k Total Pressure = 754.9 mmHg Value of gas colleted = 1.58 L Partial pressure = 17.55…

Q: A mixture containing 0.250 mol N2 (g), 0.150 mol CH4 (g), and 0.100 mol O2 (g) is confined in a 1.00…

A: Given: moles of N2 = 0.250 mol moles of CH4 = 0.150 mol moles of O2 = 0.100 mol Temperature = 35 oC…

Q: When a supply of hygrogen gas is held in a 4L container at 320K it exerts a pressure of 800 torr.…

A:

Q: Thermal decomposition of solid ammonium nitrate (NHẠNO3), similar to the explosion in Beirut,…

A: The total pressure exerted by a system (mixture of gases) is equal to the sum of partial pressures…

Q: About 8.0x 10 tons of urea 10NH,CO] are used annually as a fertilizer. The urea is prepared at…

A: Mass of urea 2.35 ton   Temperature 200°C = (273.15+200)K  Pressure = 145 atm  We have to calculate…

Q: The average kinetic energy of the molecules in a gas sample depends only on the temperature, T.…

A: The equation for rms speed is given as :

Q: Use tne KElerenceS To accesS TImportam valueS I HeedeU Tor tiIs questio. The rate of effusion of N2…

A: Graham's law states that the rate of effusion for a gaseous substance are inversely proportional to…

Q: Metallic molybdenum can be produced from the mineral molybednite, MoS2. The mineral is first…

A:

Q: The chlorination of methane occurs in a number of steps that results in the formation of…

A:

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

A:

Q: A reaction vessel contains 6 volumes of O2 and 2 volume of CH4 at a temperature of 134 °C and a…

A: Solutions Hence the final total pressure be 524.8 kpa

Q: In an air-conditioned room at 19.0 ∘C∘C, a spherical balloon had the diameter of 50.0 cmcm. When…

A:

Q: Urea (H2NCONH2) is used extensively as a nitrogen source in fertilizers. Itis produced commercially…

A: Given: volume of ammonia gas flows into a reactor  in 1 minute = 500.0 L volume of Carbon dioxide…

Q: The chlorination of methane occurs in a number of steps that results in the formation of…

A: (a) The total pressure in the flask is to be calculated (b) The partial pressure of CH4 is to be…

Q: Acetylene gas, C2H2(g), can be prepared by the reaction ofcalcium carbide with water:CaC2(s) + 2…

A: The vapor pressure of water at 23oC is 21.07 torr. The number of moles (n) of CaC2 is calculated as…

Q: Consider the combustion reaction between 25.0 mL ofliquid methanol 1density = 0.850 g>mL2 and…

A: Density of the substance is equal to the ratio of mass to volume of the substance. The number of…

Q: In an effusion experiment, it was determined that nitrogen gas, N2N2, effused at a rate 1.812 times…

A: The rate law of effusion states that the rate of effusion of a gas is inversely proportional to the…

Q: In kinetic molecular theory, what are at least two assumptions that describe an ideal gas?

A: Kinetic Molecular Theory of Gases (KMT) is used to describe the behavior of gases.

Q: When limestone (solid CaCO3) is heated, it decomposes into lime (solid CaO) and carbon dioxide gas.…

A: Here first we determine moles of O2 react with CaO(excess) to form 8.46 kg of CaCO3 . From this we…

Q: In our campus, there are approximately 30.000 students use 2.5 x 109 kJ of energy per day. Suppose…

A: Giveln Pressure = 9186 torr = 9186/760 atm 5.059 g CO2(g), 3.106 g H2O(l) Volume = 580ml = 0.58L…

Q: Atmospheric pressure on the peak of Mt. Everest can be as low as 150. mm Hg, which is why climbers…

A: Given data, P1=30,400 mm HgP2=150 mm HgV1=10 L To calculate the new volume.

Q: Acetylene is prepared from the following reaction CaC2 + 2H2O -> CHCH + Ca(OH)2   10.0 grams of…

A: Balanced chemical equation: CaC2 + 2H2O -> CHCH + Ca(OH)2 Number of moles of acetylene = number…

Q: 9.45 g of liquid hexane (C6H14) is introduced into a 10.0 L vessel containing 13.15 atm of oxygen…

A: The balanced equation for the combustion of hexane is: 2C6H14 (l) + 19 O2 (g) →12 CO2 (g) + 14 H2O…

Q: Stoichiometry with Partial Pressure Gas jar Ges collects here Trough of water Bee hive shelf…

A: Given, the balanced reaction for the partial decomposition of NaClO3 is : 2NaClO3(s)  →  2NaCl(s)  +…

Q: If carbon dioxide (CO2) requires 55.12 minutes to effuse through a small hole in its container, how…

A:

Q: For the decomposition reaction PCl5(g) = PCl3(g) + Cl2(g), it was determined that when 0.200 mol of…

A: Given: Volume of PCl5 = 1.50 L Moles of PCl5 = 0.2 moles Decomposition of PCl5 = 35%  Temperature of…

Q: Excess sodium bicarbonate (NaHCO3) is added to a 250. mL solution sulfuric acid (H2SO4). The sodium…

A:

Q: A catalytic converter in an automobile uses a palladium or platinum catalyst to convert carbon…

A:

Q: 3.If you are asked to calculate the volume of Carbon dioxide gas at 25oC and 802 torr that could be…

A: In this question, we will Identify which unit is best for pressure to converting Torr pressure unit…

Q: A sample of 5.00 mL of diethylether 1C2H5OC2H5,density = 0.7134 g>mL2 is introduced into a 6.00-L…

A: The given data contains, volume of vessel = 6 L T =308 K R=0.0821L atm mol-1.K-1

Q: Butane, C4 H10, is a component of natural gas that is used as fuel for cigarette lighters. The…

A:

Q: helium-neon lasers contain a low pressure mixture of helium and neon gases. how many times greater…

A: A question based on root mean square velocity, which is to be accomplished.

Q: An important process for the production of acrylonitrile (C3H3N) is given by the following equation:…

A: Given: Volume of the reactor = 150.0 L Temperature = 25 oC Pressure of C3H6 = 3.54 atmPressure of…

Q: The average kinetic energy of the molecules in a gas sample depends only on the temperature, T.…

A:

Q: Nitric oxide is an important neurotransmitter. To prepare to study its effect, a sample was…

A: We have to calculate the moles of neurotransmitter.

Q: A gas vessel is attached to an open-end manometer filled with a nonvolatile liquid of density 1.561…

A: Density of Mercury, d2 = 13.59 g/mL or 13590 kg/m3.  Density of liquid, d1 = 1.561 g/mL or 1561…

Q: A moture of gaseous reactants is put nto a cyinder, where a chemical reaction turns them nto gaseous…

A:

Q: In an air-conditioned room at 21.0 ∘C, a spherical bubble had the diameter of 60.0 cm. When taken…

A:

Q: What volume of water vapour (in L) will be produced during the production 291 L of hydrogen cyanide?…

A:

Q: A mixture of 5.00 mol of N2, 10.0 mol of O2 and 15.0 moles of Cl2 are mixed in a tank at 25 deg…

A:

Q: The average kinetic energy of the molecules in a gas sample depends only on the temperature, T.…

A:

Q: Calculate the pressure equilibrium constant KP is experiment suggest for the April will be in…

A:

Q: Q7. In our campus, there are approximately 30.000 students use 2.5 x 10° kJ of energy per day.…

A:

Q: Dichlorodifluoromethane (CCl2F2, MW = 120.91 g/mol) is a refrigerant and aerosol spray propellant…

A: Given, P = 878 torr T = 32.0°C MW = 120.91 g/mol

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.