10. A 3.00-g sample of a mixture of K½O and BaO is placed in 600.0 cm³ vessel containing SO3 gas at a pressure of 985 torr at a temperature of 54 °C. The SO3 reacts with K20 and BaO, forming K2SO4 and BaSO4. When the reaction is complete, the pressure of the remaining SO3 is 0.18 atm. Show how you determine the percentage composition by mass of the two oxides in the original mixture.

Q: The partial pressures of CH4, N2, and O2 in a sample of a gas mixture were found to be 123 mmHg, 505…

A:

Q: A sample of gas contains 0.1600 mol of HBr(g) and 0.08000 mol of Cl₂ (g) and occupies a volume of…

A: As per Dalton's law, volume and number of moles are directly proportional to each other.

Q: A mixture of solid calcium oxide, CaO, and solid barium oxide, BaO, weighing 5.107 g is added to…

A: The objective of the question is to-a) Calculate the moles of carbon dioxide consumed by the…

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

A: Given: Mass of propane is 1g. Temperature of the burner is 210.0°C. The pressure is 1.05 atm. The…

Q: The airbags that protect people in car crashes are inflated by the extremely rapid decomposition of…

A: Decomposition reaction is a reaction in which a single reactant decomposes to form two or more…

Q: 6.97 moles of Ar (g) and a certain amount of He (g) are confined to a container at 25.0 °C. The…

A: Given : The mixture of two gases i.e. Ar (g) and He (g) is given at a temperature of 25.0 °C The…

Q: In what volume must 12.5 moles of argon be contained so that at 20.0°C it would exert a pressure of…

A:

Q: b. How many moles of hydrogen are in this sample?

A: An ideal gas equation is derived from the combination of Charle's law, Boyle's law, and Avogadro…

Q: 1. Sodium azide (NaN3) is an ionic solid that is used in airbags to generate nitrogen gas: 2 NaN3…

A:

Q: An ideal gas in a sealed container has an initial volume of 2.55 L.2.55 L. At constant pressure, it…

A:

Q: Liquid nitrogen trichloride is heated in a 1.75-L closed reaction vessel until it decomposes…

A: Pressure of N2: 192 torr Pressure of Cl2: 577 torrExplanation:

Q: Find the mole fraction (in percents) of C2 H2 (g) that has undergone reaction.

A: 3C2H2(g)       ⇔      C6H6 (g) Initial pressure         7.0 kPa…

Q: A sample of butane (C4H10) gas having a volume of 2.0 L at 25 °C and 1300 mm Hg was mixed with a…

A: PFA

Q: Calculate the mass and number of moles of dinitrogen difluoride gas that were collected. R

A: Given: Volume= 30.0 L Pressure= 0.320 atm Temperature= 8.0oC= 281.15 K   To calculate:

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

A: According to the question we have, The temperature of the burner is given by = 190°C The pressure is…

Q: A flask contains a mixture of two gases: NO2 and Ne. The flask holds 0.507 mol of NO2 and an unknown…

A: Dalton law of partial pressure is used to calculate the partial pressure  of any gas . it says that…

Q: A vessel of fixed volume 2.0 dm3 contains 0.2 mol of calcium carbonate. After heating, it was found…

A: Given that a vessel of fixed volume 2.0 dm3 contains 0.2 mol of calcium carbonate.On heating…

Q: n ideal gas in a sealed container has an initial volume of 2.40 L.2.40 L. At constant pressure, it…

A: According to Charles law, at constant pressure, the temperature is directly proportional to the…

Q: 11. Synthesis gas, which is used in the production of ammonia and methanol, among other uses, is…

A: Since PV = nRT  where P = pressure in atm V = volume in L  n = moles  R =  0.0821  T = temperature…

Q: One of the factors that influences the behavior of a gas sample is pressure. Pressure can be…

A: Answer is explained below.

Q: In a flask, there are two gases (gas 1 and gas 2). There is 2.34 L of gas 1, with 3.2 bars of…

A: Given a flask contains gas 1 and gas 2 2.34 L of gas 1.  Partial pressure of gas 1 = 3.2 bars 6.19 L…

Q: When hydrochloric acid is poured over potassium sulfide, 42.9 mL of hydrogen sulfide gas is produced…

A: Given: Pressure = 752 torr Temperature = 25.8 0C Volume of hydrogen sulfide = 42.9 mL The chemical…

Q: SO2 (0.0812 mols) and CO2 (0.0812 mols) are placed in a 0.93 L container at 50.0 °C. The partial…

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

Q: A 0.6333 g sample of a metal carbonate was reacted with hydrochloric acid. The carbon dioxide gas…

A: We have given that the CO2 is collected at temperature of 26.0°C T = 26 + 273.15 = 299.15 K…

Q: A sample of sulfur hexafluoride gas occupies 9.10 L at 198 °C.  Assuming that the pressure remains…

A:

Q: Assume a gas mixture consists of 0.215kg of Xe, 258g of H2, 51.8g of Cl2, and 283g of C6H6. If the…

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Q: 7. Calculate the partial pressure of nitrogen and oxygen in a mixture of 35.8 grams of nitrogen gas…

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Q: A gas mixture in a 4.600 L container at 350°C contains 1.35 g each of Ar, CO, and CH4. Find the…

A: The term number of moles has been defined as the ratio of mass to the molar mass of the given…

Q: Oxygen gas generated by the decomposition of potassium chlorate is collected over water at 25 °C in…

A: The reaction:  2KClO3(s) ==> 2 KCl (s) + 3O2 (g)  Given data :  Total pressure = 755.3 torr…

Q: When HCl(aq) and NaHCO3(aq) are mixed together, a chemical reaction takes place in which a gas is…

A: Density is equal to mass of substance divide by volume.it is denoted by d.

Q: A cylinder is filled with 10.0 L of gas and a piston is put into it. The initial pressure of the gas…

A:

Q: Calculate the density (in g/L) of Freon-12, CF2Cl2, at 32.2°C and 0.968 atm.

A: Since you have posted multiple questions, we are entitled to answer the first only.

Q: A 40.0 g sample of potassium metal is allowed to react with excess hydrochloric acid to produce H2…

A: First we would Calculate moles of Hydrogen gas produced and using ideal gas law we would Calculate…

Q: Some N₂ gas is mixed with some O2 gas, and the sketch below shows a representative sample of the…

A: given problem solved as Mole fraction = mole of one component ÷ mol of both componentsN 2 =  17÷ (…

Q: A large flask with a volume of 936 mL is evacuated and found to have a mass of 134.66 g. It is then…

A:

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.