An atmospheric chemist studying the pollutant SO2 places a mixture of SO2 and O2 in a 1.14−L container at 800. K and 1.98 atm. When the reaction occurs, gaseous SO3 forms, and the pressure falls to 1.21 atm. How many moles of SO3 form?

Q: A sample of gas contains 0.1300 mol of C2H4(g) and 0.1300 mol of H2(g) and occupies a volume of 12.5…

A: Step 1:Balanced reaction isC2H4 (g) +  H2 (g)   →      C2H6 (g)(1 volume)   (1 volume)      (1…

Q: A sample contains 10.5 g N2 (MW = 28.02 g/mol), 6.5 g He (MW = 4.00 g/mol), and 34.6 g CO2 (MW =…

A: Given : Mass of N2 = 10.5 g Mass of He = 6.5 g Mass of CO2 = 34.6 g And total pressure of mixture =…

Q: Potassium chlorate decomposes when heated, giving oxy- gen and potassium chloride: 2 KCIO3(s) → 2…

A: Given information: Mass =87.6 g Pressure = 1.04 atm Temperature = 13.2 ℃

Q: Consider two identical 5.0 L flasks filled with different gases: Sample A: 5.0 g of Hy(g) at 273 K…

A: Formula  Average kinetic energy  K.E = 3kT2  At equal temperature average kinetic energy is equal…

Q: A combustion reaction involving 628.0 g n-butanol (C,H100) occurs at 345.0 °C and 15.2 atm. What…

A: Given :-  Amount of butanol = 628.0 g  Temperature = 345.0 °C  Pressure = 15.2 atm  To calculate :-…

Q: Aerosol cans carry clear warnings against incineration because of the high pressures that can…

A: Given,  Initial temperature = T1 = 30 ∘C  Final temperature = T2 = 1285 ∘C  Initial pressure = P1 =…

Q: A 1.00 L flask is filled with 1.05 g of argon at 25 ∘C. A sample of ethane vapor is added to the…

A: The molar mass of argon is 39.948 g/mol. The number of moles (n) of argon is calculated below.

Q: A 10-liter container is filled with 0.1 mol of H2(g) and heated to 2500 K causing some of the H2(g)…

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

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Q: 1.10 g of Carbon dioxide were introduced into a 1.00 L flask which contained some pure oxygen (O2)…

A: Given : mass of CO2 introduced = 1.10 g Since molar mass of CO2 = 44 g/mol Hence moles of CO2…

Q: Calculate the volume of the sample after the reaction takes place, assuming that the temperature and…

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Q: How many grams of carbon disulfide are needed to completely consume 16.6 L of chlorine gas according…

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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: A perfect gas undergoes isothermal compression, which reduces its volume by 2.20 L. The final…

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Q: 2. If the excess salt is dissolved in water, it will reform carbamic acid. At 350K, carbamic acid…

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Q: Oxygen gas can be generated by heating potassium chlorate: heat 2KCIO, (s) 2KCI(s) + 2KCI() + 30,…

A: We have to calculate the volume of oxygen gas produced.

Q: A gaseous mixture contains 3.23 g of chloroform CHCl3 and 1.22 grams of methane CH4 . Assuming that…

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Q: A  4.52 g sample of nitrogen gas, N2(g), is held in a 3.00 L gas flask at 298 K. Calculate the…

A: The ideal gas equation is PV = nRT. Where P is the pressure, V is the volume, n is the number of…

Q: How many grams of iron are needed to produce 13.0 L of hydrogen gas according to the following…

A: To solve this problem first we have to calculate the number of moles of hydrogen gas . As the given…

Q: You are baking some cookies for your holiday party this weekend. You add 1/2 teaspoon of baking…

A: Given : Temperature 3750F Pressure = 84KPa

Q: moles

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Q: Calculate the volume of the sample after the reaction takes place, assuming that

A: Balanced chemical reaction,  CH4 + H2O -----> 3H2 + CO Moles of CH4 = 0.1100 mol Moles of H2O =…

Q: Two bulbs are connected by a stopcock. The large bulb, with a volume of 6.00 L, contains nitric…

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Q: You are baking some cookies for your holiday party this weekend. You add 1/2 teaspoon of baking…

A: The molar mass of baking soda (NaHCO3) = 84.007 g/mol  T = 375oF =  463.706K  P = 84kPa = 0.829atm…

Q: when 4.00 L of octane (2,794.48 g) are consumed, how many liters of O2 are consumed and how many…

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Q: A sample of magnesium metal reacts completely with an excess of hydrocholoric: Mg(s) + 2 HCl(aq) --…

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Q: At 25 °C and 765.6 torr, a sample that is a gaseous compound containing carbon, hydrogen, and oxygen…

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Q: Carbon tetrachloride, CCI, (g), can be synthesized according to the reaction represented below. A…

A: According to ideal gas law PV = nRT where P = pressure of gas = 0.5 atm (given) V = volume of…

Q: weather balloon containing 1.10 x 10^5 mol of neon gas has a volume of 2.70 x 10^6L at 1.00atm.…

A: In this problem, we are given the following values:Number of moles (n) = 1.10 x 10^5 molVolume (V) =…

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.