In a constant volume vessel, excessive H2 and 3.2 g O2 gas at 270 C create a pressure of 1.1 atmospheres. Gases; 2H2 (g) + O2 (g) → 2H2O (s) returns to the first temperature after reacting with full efficiency according to the reaction. Since the pressure in the vessel is 407 mmHg, how many grams of H2 gas at the beginning? (H = 1) (PH2O at 270 C (g) = 27 mmHg)

Q: Here is the overall reaction in an automobile air bag: 20NAN (s) + 6S1O, (s) + 4KNO,(s) → 32N,(g) +…

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Q: Determine the pressure (in kPa

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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: gas was conducted at 47.2 °C. The Keq = 0.105

A: Mole can be defined as a standard unit for measuring large quantities of very small entities such as…

Q: l the graphite reacts. Combustion produces a mixture of CO gas and CO2 gas. After the cylinder has…

A: Moles of O2 = 1.25 moles Moles of CO2 = 2.5 moles Moles of CO =  2.5 moles

Q: At 1.00 atm and 0 °C, a 5.04 L mixture of methane (CH₂) and propane (C₂H₂) was burned, producing…

A: We have to calculate the mole fraction of methane and propane

Q: Q1.A glass vessel was filled with an unknown quantity of nitrogen gas and the pressure at 28°C was…

A: Hii there, since there are multiple questions posted. We are answering first question. If you need…

Q: a) What mass of carbon dioxide is present in 1.00 m3 of dry air at a temperature of 17 ∘C and a…

A:

Q: If 14.5g of calcium carbonate decomposes via the following reaction, how many liters of carbon…

A: Number of moles of Calcium carbonate can be calculated as follows: No. of moles of CaCO3= massmolar…

Q: Which of the following is true about the kinetic energy (E) of the molecules of Ne(g) and the…

A: Concept: Gas particles are in continuous and random motion. The Collisions between gas particles are…

Q: Kinetic molecular theory Consider two 1-L samples of gas: one is O2 and the other is CO2. Both are…

A: The above question can be solved as

Q: To study gas behavior, the reaction between solid magnesium and the hydrochloric acid solution is…

A: given: Mg (s)+2HCl (aq)⟶ MgCl2 (aq)+ H2 (g) mass of  empty flask : 95.5 g flask full of water :…

Q: Here is the overall reaction in an automobile air bag 20NAN, (0) +6SIO,(0)+4AKNO, 6)32N,(e) +…

A:

Q: A bottle with the volume 4.03 L contains a sample of chlorine gas, Cl2, with a pressure of 198 Torr…

A:

Q: Aluminum reacts with aqueous sodium hydroxide to produce hydrogen gas according to the following…

A: Given, Pressure of H2 gas= 744 mm of Hg                               = 744760atm T= 25°C= 298K…

Q: Carbon monoxide gas reacts with hydrogen gas to form methanol:CO(g) + 2 H2(g) -------> CH3OH(g)A…

A: The number of moles (n1) of CO (g) inside the 1.50 L reaction vessel at 305 K is calculated as shown…

Q: 3 RT speed = V M %3D = 8.314 J/ (mol-K) and M is molar mass in kilograms per mole. Note that a joule…

A: rms speed = (3RT/M)1/2 For F2 molecules,  M = 38 g/mol = 38×10-3 Kg/mol So, rms speed= =…

Q: Calculate the volume of ammonia gas, measured at STP for the complete reaction of 25 g of quicklime…

A: According to Gas law, PV = nRTNow at STP, Pressure =1 atmT = 273 KR = 0.0821 LatmmolK   From this…

Q: Calcium hydride (CaH 2) reacts with water to form hydrogen gas: CaH 2 (s) + 2H 20 (1)→ Ca(OH) 2 (aq)…

A: Given :

Q: What volume of carbon dioxide gas (in mL) at 834 mm Hg and 25 °C can be produced when 2.3 g of…

A: Given-> Pressure (P) = 834 mm Hg =834760 atm=1.097atm Temperature (T) = 25°C = 25 + 273 = 298 K…

Q: Suppose 2.80% of 480 g of PCls (208.2 g/mol) initially present in a 7.00 L reaction vessel at 300°C…

A:

Q: Thermal decomposition of nickel tetracarbonyl produces pure nickel metal and carbon monoxide gas…

A: given - mass of Ni (CO)4 =775 g temperature = T = 21oC = 21+ 273 = 294 K pressure =P =533 mm Hg =…

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

A:

Q: At 100 kPa and 0 °C, a 5.04 L mixture of methane (CH4) and propane (C3H8) combusts, producing 18.0 g…

A: In this question, we have to Calculate the mole fraction of each gas in the initial mixture.

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: Calculate the total pressure (in atm) of a mixture of 0.0200 molof helium, He, and 0.0100 mol of…

A: The ideal gas equation for a mixture of two non reacting gases is expressed as  PV = (n1 + n2)RT  P…

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: This reaction occurs at constant temperature and pressure. The container in which this reaction is…

A: The balanced reaction taking place is given as, => 2 H2 (g) + 1 CO (g) ------> 1 CH4O (g)…

Q: A baker uses sodium hydrogen carbonate (baking soda) as the leavening agent in a banana-nut quick…

A: Answer:-This question is answered by using the simple concept of stoichiometry which involves the…

Q: hydroch 2. Unlike oxygen gas, nitrogen gas (the other major component of air) is generally…

A: Balancing the reaction :  Mg + N2  ---> Mg3N2  since we have 3 Mg in RHS hence making is 3 in LHS…

Q: The reaction of 50 mL of N₂ gas with 150 mL of H₂ gas to form ammonia via the equation: N₂ (g) +…

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Q: The generic reaction occurs in a closed container: 2A(g) +B(g) → 2Ce) A reaction mixture initially…

A:

Q: 1.) This reaction occurs in large test tube at 32.0oC: 2 Al (s)  + 3 H2SO4(aq) ---> 6 H2 (g)  +…

A: The balanced reaction taking place is given as, => 2 Al (s) + 3 H2SO4 (aq) -------> 6 H2 (g) +…

Q: Be sure to answer all parts. A mixture of CO2 and Kr weighs 45.8 g and exerts a pressure of 0.821…

A: Answer:- This question is answered by using the simple concept of calculation of mass using the…

Q: Which of the following substances was used to test for the pressence of carbon dioxide in expired…

A: The chemical formula of cabon dioxide is CO2.

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

A:

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

A: According to Q & A guidelines of Bartleby, we are supposed to answer only the first 3 sub-parts…

Q: Oxygen was produced and collected over water at 22 °C and a pressure of 754 mmHg from the following…

A: Given: Atmospheric pressure = 754 mm Hg Volume of oxygen gas = 532 mL    (1 L = 1000 mL)…

Q: A 5.00 L tank at 15.3°C is filled with 6.86 g of dinitrogen monoxide gas, 12.5 g of sulfur…

A: Formula used   X( mole fraction) = mole ÷total moles moles = mass÷molar mass

Q: A mixture of hydrogen and helium gases is maintained in a 5.63 L flask at a pressure of 2.95 atm and…

A: Given -->  P = 2.95 atm V = 5.63 L n = ?  R = 0.0821 L.atm/mol.K T = 68°C = 341 K  Mass of…

Q: Some commercial drain cleaners use a mixture of sodium hydroxide and aluminum powder. When the solid…

A: We will first calculate the number of moles of hydrogen produced using stoichiometric calculations.…

Q: A mixture of solid calcium oxide, CaO, and solid barium oxide, BaO, weighing 4.504 g is added to a…

A: The volume of flask = 2.00 LWeight of mixture (CaO+BaO) = 4.504 gInitial pressure of CO2 gas= 0.898…

Q: 1) Calculate the volume of 1.62g of Helium gas at 25.670C and 872 mmHg.  (R = 0.0821 atm.L/mol.K)

A: As per our guidelines, we are supposed to answer?️ only one question. Kindly repost other questions…

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.