A 5.80 g sample of lead nitrate Pb(NO3)2 molar mass = 331 g/mol is heated in an evacuated cylinder with a volume of 3.25L. The salt decomposes when heated according to the equation: 2Pb(NO3)2 --> 2PbO + 4NO2 + O2 Assuming complete decomposition, what is the pressure in the cylinder after decomposition and cooling to a temperature of 250 K?

Q: A tank was filled with 12 g of oxygen (O2), 73 g of nitrogen (N2) and 4 g of carbon dioxide(CO2). At…

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Q: If the atmospheric burden of CO2 increases by 27.0 Gt (gigatonnes, 1Gt= 1 x 1012kg) over a given…

A: Given:  Current CO2 concentration = 408.3 ppm Increase in CO2 atmospheric burden = 27 GT = 27 x 1012…

Q: What is the mole fraction of nitrogen in a mixture of Ar, N2, and He in which the partial pressure…

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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: How many litres of chlorine gas at 640 mmHg and 25 degrees C can be produced by the reaction of 2.0…

A: Welcome to bartleby !

Q: 7) 5H₂ AsO4 7) In the reaction represented below, 1.928 x 10³ dg of H₂AsO4 will be produced by how…

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Q: 1. What is the pressure (in atm) of 7.265 g of isobutene gas (C:H10) in an aerosol can at 21.0 °C…

A: Given, Mass of isobutene gas = 7.265g. Temperature = 21.0oC = 294K. Volume of gas = 465mL = 0.465L.…

Q: If the partial pressure of N2 is 3.50 x 105 Pa and the partial pressure of Ne is 3.75 x 105 Pa in a…

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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.…

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

Q: Two groups conducted the Ideal Gas Experiment with exactly the same mass of solute, temperature, and…

A: As we know that the gas  inside the eudiometer is same but the volume of the eudiometer is different…

Q: Vhat is the equivalent value in kPa of 0.32 mmHg?

A: The question is based on the concepts of unit conversion. we have been given pressure in  millimetre…

Q: How many millimoles (1000 mmoles = 1 mole) of hydrogen gas can be generated when 0.0350 grams of…

A: Magnesium reacts with hydrogen chloride to form hydrogen gas and magnesium chloride. The equation…

Q: A balloon contains 2,758mL of helium gas at 75.2°C. What is the final volume, in liters(L), if the…

A: Since, you have multiple questions so I will solved first question for you please post separately…

Q: A student performed the experiment described in this module, using 6.00 mL of a 3% H2O2 solution…

A: The decomposition of hydrogen peroxide can be represented as follows: 2H2O2  →  2H2O  +  O2

Q: A person inhales air richer in Oz and exhales air richer in CO2 and water vapor. During each hour of…

A: pressure (p) = 30.0 torr = 30760pa volume (v)= 300 L Temperature = 25.1oC = (273.15+25.1)K = 298.25…

Q: A weather balloon containing 2.0 m³ of hydrogen gas rises from a location at which the temperature…

A: The initial pressure of the balloon is .The initial volume of the balloon is .The initial…

Q: What is the pressure inside a 250 mL stoppered flask that contains 0.040 mol of NH3(g) at 15 °C?

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

A: K2CO3 + 2 HBr ==> 2 KBr + CO2 + H2O  Given mass of K2CO3 = 27.2 g  Given volume of HBr = 125 ml =…

Q: A mixture of hydrogen and helium gases contains hydrogen at a partial pressure of 337 mm Hg and…

A: Given data  Partial pressure of hydrogen =337mmHg  Partial pressure of Helium =522mmHg Mole fraction…

Q: For the following reaction, how many grams of carbon dioxide, CO2, are produced when 5.00 g of…

A: We have given that 2 NaHCO3  → Na2CO3 + H2O + CO2 given that mass of NaHCO3 = 5grams molar mass of…

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: The partial pressure of oxygen in the lungs is about 150 mm of Hg. (The partial pressure is the…

A: C1 = 5.3 × 1024 molecules / m3 C2 = 1.4 × 1024 molecules / m3 Diffusion coefficient, D = 2 × 10-11…

Q: 18. The balanced equation for ammonia production shown below is important for the fertilizer…

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Q: The oxidation of trichloroethane results in the following reaction equation: 4 CaH,C|a() + 11 0, (g)…

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

A: The reaction stoichiometry plays a major role in the yield of the product. The reaction…

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: Silicon tetrachloride (SIC14 ) can be prepared by heating Si in chlorine gas: Si(s) + 2C12(g) ->…

A: Given :-   Si(s) + 2Cl2(g) → SiCl4(l)  number of moles of SiCl4 produced = 0.507 mol  molar mass of…

Q: Five grams of ethane are confined in a bulb of one liter capacity. The bulb is so weak that it will…

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Q: A sample of gas that is (5.160x10^-1) mol is initially at (3.33x10^2) K, (7.2700x10^2) mm Hg, and…

A: GIVEN: Initial moles of the gas (n1)=5.160 x 10-1 mol = 0.5160 mol Temperature (T1)= 3.33 x 102 K =…

Q: Part A What volume of O2 at 722 mmHg and 21 °Cis required to synthesize 22.5 mol of NO? Express your…

A: Given that: pressure, P = 722 mmHg = 722760= 0.95 atm temperature, T = 21 oC = 21 + 273 = 294 K…

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

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Q: The total pressure of a mixture of gases is 0.486 atm. If the mole fraction of helium in the mixture…

A: The partial pressure of a gas  is equal to the total pressure (a mixture of gases) multiplied by the…

Q: (References] An 18.6 mL volume of hydrochloric acid reacts completely with a solid sample of MgCOg.…

A: Molarity of HCl can be calculated by using formula - Molarity = mole/volume(L) First of all…

Q: (b) A mixture of helium, hydrogen and carbon dioxide gases are at a pressure of 1200 torr in a 4 L…

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Q: Silicon tetrachloride (SİCI4 ) can be prepared by heating Si in chlorine gas: Si(s) + 2CI2(g) ->…

A: The balanced reaction given is, Given: Moles of SiCl4 produced = 0.507 mol.

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

A: In this question, we want to determine the Partial pressure of CO2 gas When total pressure and…

Q: While ethanol  CH3CH2OH  is produced naturally by fermentation, e.g. in beer- and wine-making,…

A: The equilibrium constant, Kp for a reaction is given as :

Q: The atmosphere contains about 5.2×10^15 t of air. What mass in metric tons of carbon dioxide is in…

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Q: A cylinder of volume 27.0 L is filled with 25.1 g of jobstium gas (MM = 72.21 g - mol-1)from the…

A: Given the volume of cylinder i.e. gas =27.0 Lnumber of moles of gas =0.348 moltemperature =326 Kwe…

Q: What volume of CO2(g) at STP is produced if 1.42 L of 0.0036 M HCl reacts with an excess of CaCO3

A: Given :-  CaCO3(s) + 2HCl(aq) → CaCl2(aq) + CO2(g)  Molarity of HCl solution = 0.0036 mol/L  Volume…

Q: A mixture of helium and neon gases at 235 K contains 3 times the number of helium atoms as neon…

A: Answer: Ideal Gas equation: PV=nRTP=nVRT Here: P=pressure of the gasV=volume of the gasn=number of…

Q: Calculate the Volume of Carbon Dioxide gas that was produced in the reaction of baking soda and…

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Q: 93.3 mL of dry Gas A, at 21°C and an atmospheric pressure of 0.987 atm, reacted with 18.6 mL of a…

A: The formula used to obtained number of moles: P is the pressure. V is the volume. n is the number…

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.