Sometimes in lab we collect the gas formed by a chemical reaction over water (see sketch at right). This makes it easy to isolate and measure the amount of gas produced. collected gas chemical reaction water Suppose the CO, gas evolved by a certain chemical reaction taking place at 40.0 °C is collected over water, using an apparatus something like that in the sketch, and the final volume of gas in the collection tube is measured to be 71.8 mL. Sketch of a gas-collection apparatus Calculate the mass of CO, that is in the collection tube. Round your answer to 2 significant digits. You can make any normal and reasonable assumption about the reaction conditions and the nature of the gases.

Q: A balloon is filled with helium gas (see an illustration below). Indicate whether the volume of the…

A: A balloon is filled with helium gas (see an illustration below). Indicate whether the volume of the…

Q: 2. The form of the Ideal Gas Law that we used in class is pVmRT, where p is absolute pressure, V is…

A: We have pV= mRT, where p is absolute pressure, V is volume, R is the specific gas constant and T is…

Q: Consider the following equation: CH&O7(s) +3 NaHCO3(s) + H20(1) --> Na3CgHgO7(s) + 3H2O(1) + 3CO2g)…

A: Here we first calculate the production of CO2 as a mole. Then use gas equation to determine the…

Q: Sometimes in lab we collect the gas formed by a chemical reaction over water (see sketch at right).…

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Q: Sometimes in lab we collect the gas formed by a chemical reaction over water (see sketch at right).…

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Q: Sometimes in lab we collect the gas formed by a chemical reaction over water (see sketch at right).…

A: For ideal gas,  PV = nRT Where, Volume of n mol of gas at temperature T and pressure P is V

Q: Sometimes in lab we collect the gas formed by a chemical reaction over water (see sketch at right).…

A: Volume of H2 gas, V = 142 mL = 0.142 L (1 L = 1000 mL) Temperature of H2 gas, T = 45.0 °C =…

Q: Sometimes in lab we collect the gas formed by a chemical reaction over water (see sketch at right).…

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Q: Which is a postulate of the kinetic molecular theory of gases? 1 Despite being very small, the…

A: The kinetic molecular theory of gas is a model explaining thermodynamic behaviour of gases.…

Q: Hydrogen peroxide decomposes to form water and oxygen gas according to the following equation:…

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Q: Sometimes in lab we collect the gas formed by a chemical reaction over water (see sketch at right).…

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Q: Sometimes in lab we collect the gas formed by a chemical reaction over water (see sketch at right).…

A: Ideal gas equation,  PV = nRT

Q: Sometimes in lab we collect the gas formed by a chemical reaction over water (see sketch at right).…

A: Given: T = 35oC = 35 + 298 = 308 k V = 106. mL = 0.106 L

Q: Calculating the mass of a gas collécted 8Ver Wai Sometimes in lab we collect the gas formed by a…

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Q: Reaction Stoichiometry Involving Gases 71. Consider the chemical reaction: C(s) + H2O(8) CO(g) +…

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Q: Sometimes in lab we collect the gas formed by a chemical reaction over water (see sketch at right).…

A: Ideal gas:-         A gas that follows Boyel's law, Charle's law and Avogadro's law strictly is…

Q: Sometimes in lab we collect the gas formed by a chemical reaction over water (see sketch at right).…

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Q: Calculate the volume of chlorine gas (Cl2) at STP that will react with 5.00 grams of

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Q: In the lab students reacted zinc with acid to generate and collect hydrogen gas, according to the…

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Q: A sample of N2O3(g) has a pressure of 0.024 atm. The temperature (in K) is then doubled and the N2O3…

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Q: Sometimes in lab we collect the gas formed by a chemical reaction over water (see sketch at right).…

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Q: Unknown elemental metal was reacted with Hydrochloric Acid. It was determined that this reaction…

A: Given:- Mass of Metal used = 0.3682 g   P (atmospheric) = 761.1 mm Hg   Temperature of gas = 21.6…

Q: collected Sometimes in lab we collect the gas formed by a chemical reaction over water (see sketch…

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Q: Hydrogen gas is produced by the reaction between metallic aluminum and aqueous hydrochloric acid.…

A: The total number of moles of gas, ngas, that collected via water displacement at 29.4oC is;…

Q: a) 1.488×10-4 mol of an unidentified gaseous substance effuses through a tiny hole in 81.2 s. Under…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: 300 mL nitrogen gas reacts with 751 mL hydrogen gas. both gases are at the same temperature and…

A: According to the mole concept, in terms of mass, the amount of substance in moles is equal to the…

Q: Sometimes in lab we collect the gas formed by a chemical reaction over water (see sketch at right).…

A: T = 35oC = 308.15K  V = 80ml = 0.08L  We will consider the pressure to be 1atm  Molar mass of oxygen…

Q: Sometimes in lab we collect the gas formed by a chemical reaction over water (see sketch at right).…

A: Please find your solution below :

Q: Pentane is an organic compound with the chemical formula C,H12. The products of complete combustion…

A: Given: Mass of pentane = 36.085 g Standard data:  The molar mass of pentane = 72.15 g/mol The…

Q: Consider the following equation: C6H8O7(s)  + 3 NaHCO3(s) + H2O(l) --> Na3C6H8O7(s) + 3H2O(l) +…

A: Given mass of C6H8O7 = 193.6 molar mass of C6H8O7 = 192.1 g/mol Temperature = 313°K volume = 108.4 L

Q: An ideal gas (which is is a hypothetical gas that conforms to the laws governing gas behavior)…

A: We are given two process, one is two step process another is single step process  We have to find…

Q: Sometimes in lab we collect the gas formed by a chemical reaction over water (see sketch at right).…

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Q: Sometimes in lab we collect the gas formed by a chemical reaction over water (see sketch at right).…

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Q: Sometimes in lab we collect the gas formed by a chemical reaction over water (see sketch at right).…

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Q: Sometimes in lab we collect the gas formed by a chemical reaction over water (see sketch at right).…

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Q: Sometimes in lab we collect the gas formed by a chemical reaction over water (see sketch at right).…

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Q: Ethane gas, C,Hg, burns in air (actually the oxygen in the air) to form carbon dioxide and water.…

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Q: Sometimes in lab we collect the gas formed by a chemical reaction over water (see sketch at right).…

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Q: Sometimes in lab we collect the gas formed by a chemical reaction over water (see sketch at right).…

A: Ideal gas equation : PV= nRT

Q: Sometimes in lab we collect the gas formed by a chemical reaction over water (see sketch at right).…

A: Given: Gas is collected over water  Temperature = 55oC = 55 + 273.15 K = 328.15 K Volume of gas =…

Q: In the lab, students decomposed a sample of calcium carbonate by heating it over a Bunsen burner and…

A: The volume of carbon dioxide gas were generated has to be calculated

Q: Use the References to access important values if needed for this question. A sample of NH3 gas is…

A: Rate for NH3 gas = 3.84 minutes  Rate for unknown gas = 5.73 minutes Molar mass of NH3 = 17.03…

Q: Sometimes in lab we collect the gas formed by a chemical reaction over water (see sketch at right).…

A: Temperature = 35°C or 273 + 35 = 308K Volume of the gas = 48.7mL or 0.0487L Pressure of atomosphere…

Q: Sometimes in lab we collect the gas formed by a chemical reaction over water (see sketch at right).…

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Q: Sometimes in lab we collect the gas formed by a chemical reaction over water (see sketch at right).…

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Q: Ammonia and gaseous hydrogen chloride combine to form ammonium chloride.  NH3(g) + HCl(g)…

A: Given that the mass of ammonia is 4.21 g which combines with HCl to form NH4Cl. The reaction is…

Q: Sometimes in lab we collect the gas formed by a chemical reaction over water (see sketch at right).…

A: Here we have to calculate mass of the CO formed-

Q: An analyst knows that a sample of gas is either carbon dioxide or carbon monoxide. The analyst…

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Q: This relationship is known as Graham’s Law of Effusion. Since both gases are at the same…

A: Given Data: mLmH=vHvL2 vHvL=12 Molar Mass of light gas (Neon) = 20 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.