Sodium metal reacts with water to produce hydrogen gas according to the following equation:2Na(s) + 2H2O(l)2NaOH(aq) + H2(g)The product gas, H2, is collected over water at a temperature of 20 °C and a pressure of 750 mm Hg. If the wet H2 gas formed occupies a volume of 7.59 L, the number of grams of H2 formed is _____g. The vapor pressure of water is 17.5 mm Hg at 20 °C.

Q: A student wanted to check if the volume of a gas would double after doubling its temperature in °C…

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Q: 138. You have two rigid gas cylinders. Gas cylinder A has a volume of 48.2 L and contains N2(g) at…

A: Given:Volume of gas (VN2) = 48.2 L.Pressure of gas (PN2) = 8.35 atm.Temperature of gas (TN2) = 25℃ =…

Q: 2.25 grams of zinc metal is reacted with 54.3 mL of a 1.22 M HCl solution. If 1.52 L of hydrogen gas…

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Q: Calcium carbide reacts with water to produce acetylene gas according to the following equation: CaC₂…

A: Recall the given reaction,                                    the pressure of the collected gas =…

Q: 3. Dr. Dahm is trying to generate CO2(g) by reacting an acid with calcium carbonate. If he pours 389…

A: Given :  Volume of H2SO4 = 389 ml  Concentration of H2SO4 = 1.6 M  Mass of CaCO3 = 69.5 gm…

Q: . formed occupies If the wet H2 gas a vo áms of H, formed is g. g. The vap

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Q: Intraocular gases are dense, unreactive gases that are used for some vitreoretinal surgeries, such…

A: Given: Density of gas = 5.56 g/LTemperature = 22.5 °CPressure = 0.978 atmPercent of carbon = 17.40…

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

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Q: Consider the following chemical reaction: CO2(g) + NaOH(aq)  ---------> Na2CO3(s) + H2O(l) CO2(g)…

A: Initial moles of CO2 taken can be calculated using the ideal gas equation.

Q: A neon sign is made of glass tubing whose inside diameter is 2.0 cm and whose length is 4.0 m. If…

A: P = 1.5 mm Hg T = 350C = 308 K Radius = 1 cm = 0.01 m Length = 4 m

Q: Consider the reaction of ferrous sulfide with a dilute acid: FeS(s) +2HCI(aq)¬H2S(g)+FeCl2(I) An…

A: The reaction of ferrous sulfide with dilute acid HCl is written as follows: FeS(s) + 2HCl(aq)…

Q: Solid ammonium chloride, NH,CI, is formed by the reaction of gaseous ammonia, NH,, and hydrogen…

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Q: Zinc metal reacts with excess hydrochloric acid to produce hydrogen gas according to the following…

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Q: NH, (g) + HCl(g) NH,CI(s) 1.87 g sample of NH, gas and a 4.87 g sample of HCl gas are mixed in a…

A: Mole= mass/molar mass Use stoichiometry of the reaction to get mass of ammonium chloride.

Q: For the given reaction, what volume of NO₂ can be produced from 1.5 L of O₂, assuming an excess of…

A: To find out the volume of NO2 gas produced, we need to use the Avogadro's law, which contains two…

Q: A gas originally at 27 °C and 1.00 atm pressure in a 3.9 L flask is cooled at constant pressure…

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Q: 2. A chemist vaporizes, to a gas, a volatile liquid hydrocarbon (CHO) compound, containing carbon…

A: Given that -  Density of the gas = 2.944 g/L  Temperature = 89.3°C = 362.3 K  Pressure = 755.3 mmHg…

Q: Calcium carbide reacts with water to produce acetylene gas according to the following equation: CaC₂…

A: The ideal gas equation gives the relation between pressure, volume, temperature, and number of moles…

Q: Calcium carbide reacts with water to produce acetylene gas according to the following equation:…

A: Given reaction; CaC2(s) + 2H2O(l) -> C2H2(g) + Ca(OH)2(aq) Volume of C2H2 gas collected V = 5.69…

Q: Zinc metal reacts with excess hydrochloric acid to produce hydrogen gas according to the following…

A: Given: The total pressure (Ptotal) is 754 mm Hg The vapor pressure of water PH2O is 23.8 mm Hg The…

Q: Calcium carbide reacts with water to produce acetylene gas according to the following equation: CaC₂…

A:

Q: 3. An investigator is told that a closed vessel holds a pure rare gas. She measures the density of…

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Q: Three 300 ml. expandable containers (A, B and C) containing mixtures of nitrogen gas and hydrogen…

A: The balanced chemical equation taking place is: N2(g) + 3H2(g) ⇌ 2 NH3(g)  We have 3 different…

Q: Potassium reacts with water to release hydrogen gas according to the following equation: 2 K (s) + 2…

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Q: Sodium metal reacts with water to produce hydrogen gas according to the following equation:2Na(s) +…

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Q: If 69.6 grams of carbonic acid are sealed in a 2.00 L soda bottle at room temperature (298.15 K) and…

A: Answer :- 13.7 (atm)  The final pressure of Carbon dioxide gas (CO2) = 13.7 atm…

Q: 72 g of CaCO3 is treated with 0.500 L of a 1.00M solution of HCl. What volume of CO2 gas, measured…

A: Mass of CaCO3 = 72 g Molar mass of CaCO3 = 100 g/mol Moles of CaCO3 =72/100 = 0.72 mol Molarity of…

Q: For the reaction shown, draw the major organic product(s) and select the best name for the organic…

A: The reaction of an alkene with HBr is the Markonikoff reaction in which carbocation is formed.

Q: Nitrogen monoxide is a pollutant commonly found in smokestack emissions. One way to remove it is to…

A: Provided volume of NO=31.3Litre At STP volume of one mole gas=22.4litre Here, The stoichiometric…

Q: 1. Hydrogen cyanide, HCN, is a poisonous gas allegedly purchased by Lizzie Borden in August 1892. It…

A: Given that the partial pressure of water at 30 °C = 31.8 mmHg Given that the total pressure of the…

Q: A commercial mercury vapor analyzer can detect, in air, concentrations of gaseous Hg atoms (which…

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Q: Q/ Gaseous hydrogen sulfide and gaseous sulfur dioxide are combined in a 250. mL flask. The gas…

A: Ideal gases: Ideal gases is a theoretical concept which says that a gas is said to be ideal if it…

Q: Magnesium metal reacts with hydrochloric acid to producing hydrogen gas according to the following…

A: Given,

Q: Calcium carbide reacts with water to produce acetylene gas according to the following equation: CaC₂…

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Q: is one of the products. The gas has a density of 1.83 g/L at 1.00 atm and 20°C. What are the mola s…

A: Given, Density of gas = 1.83 g/L Pressure = 1.0 atm Temperature = 20°C  Molar mass = ?

Q: At a temperature of 25°C a bicycle tire has a pressure of 140. psi with 4.09 x 10-2 moles of…

A: Given P1 = 140 psi n1 = 4.09 × 10-2 P2 = 130 psi n2 = ? Volume constant

Q: Hydrogen gas is produced by the reaction between metallic aluminum and aqueous hydrochloric acid. 2…

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Q: A commercial mercury vapor analyzer can detect, in air, concentrations of gaseous Hg atoms (which…

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Q: 2. Hydrogen cyanide, HC What mass of NaCN, sodi 799 mm Hg ?

A: PV=nRT is known as ideal gas equation using this equation we can calculate the number of mole HCN as…

Q: A 5.61−g sample of graphite was heated with 69.6 g of O2 in a 8.00−L flask. The reaction that took…

A: The reaction given is  C(graphite) + O2(g) → CO2(g)

Q: What volume of carbon dioxide gas (in mL) at 835 mm Hg and 37 °C can be produced when 2.4 g of…

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Q: 215.0 mol of an unknown gas is stored at a temperature of 1110 K in a large, 395 L container. In…

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Q: 11. Consider the following chemical reaction: CO2(g) + NaOH(aq)  ---------> Na2CO3(s) + H2O(l)…

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Q: Sodium metal reacts with water to produce hydrogen gas according to the following equation: 2Na(s)…

A: Concept is based on ideal gas equation:

Q: A mixture of neon and methane gases at a total pressure of 882 mm Hg contains neon at a partial…

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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.