Zinc metal reacts with excess hydrochloric acid to produce hydrogen gas according to the following equation: Zn(s) + 2HCl(aq)ZnCl2(aq) + H2(g) The product gas, H2, is collected over water at a temperature of 20 °C and a pressure of 746 mm Hg. If the

Q: Chlorine gas reacts with fluorine gas to form chlorine trifluoride: Cl2(g) + 3 F2(g) --------> 2…

A: The number of moles of given substance can be calculated as follows Number of moles=MassMolar mass…

Q: A bottle with the volume 4.03 L contains a sample of chlorine gas, Cl2, with a pressure of 198 Torr…

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Q: What volume of ammonia gas, measured at 626.0 mmHg and 38.0oC, is needed to make 3.98 g of ammonium…

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Q: Dentists sometimes use laughing gas (N2O) to keep patients relaxed during dental procedures. A…

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Q: What is the molecular weight of a gas if a 27.0 g sample has a pressure of 836 mm Hg at 25.0 oC  in…

A: Given, mass of a sample of gas w =27.0 gpressure of the gas P =836 mm Hg =1.1 atm ( 1 atm =760…

Q: Solid ammonium chloride, NH4Cl, is formed by the reaction of gaseous ammonia, NH3, and hydrogen…

A: Given: The given reaction is, The volume of the flask is 0.50 L Mass of ammonia gas = 4.67 g Mass…

Q: a. Sulfur dioxide (SO2), a gas that plays a central role in the formation of acid rain, is found in…

A: Please find the attached sheet.

Q: What volume of ammonia gas, measured at 782.0 mmHg and 38.6oC, is needed to make 1.28 g of ammonium…

A: The ideal gas equation is as follows,                                 P V = n R T Where P is the…

Q: The compound is oxidized and the chlorine in the substance is converted to chlorine gas. if 40 mg of…

A: Given :  Volume = 12 m3  Pressure = 1 atm  Temperature = 25°C = 298 K  Final pressure = 1 atm  Final…

Q: Part A: Calculate the molar mass of a gas that has a density of 1.98 g/L at STP.   Part B:…

A: To Solve this problem we use the relation that   d = PM/RT  Where , d = density   P = pressure  M =…

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: A sample of an unknown compound is vaporized at 150. °C. The gas produced has a volume of 980. mL at…

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Q: A sample contained a mixture of CoS and CdS. The amount of CoS was determined by reacting 7.701 g of…

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Q: 3. A plastic tank containing a gas of 7.8 L and 5.35 atm at 7 °C weighs 96 g. If the empty tank…

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Q: What quantity in moles of chlorine gas at 12.0 celsius and 33.3atm would occupy a vessel of 27.5L

A: Given :  Pressure = 33.3 atm  Volume = 27.5 L  Temperature = 12.0°C  To calculate :-  Number of…

Q: A 0.610 g0.610 g sample of a metal, M, reacts completely with sulfuric acid according to…

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Q: Ammonium nitrate, NH4NO3, can decompose explosively when heated to a high temperature according to…

A: Interpretation- To determine the how many liters of gaseous products would be formed. When NH4NO3,…

Q: What volume of hydrogen sulfide is required to produce 36.6 liters of sulfur dioxide according to…

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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: * 00 Radon (Rn) is the heaviest and the only radioactive member of Group 8A(18), the noble gases. It…

A: Given data  No of atoms of radon=10^15 atoms   Average atoms=1.373×10^4 Given mass=3.96g Molar…

Q: 1. The following reaction occurs: 793 mL of a 0.823 M sodium sulfide solution is reacted with 0.452…

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Q: How many liters of chlorine gas at 1.68 atm and 28°C can be produced by the reaction of 8.91 moles…

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Q: How many moles of gas would you have if you had a volume of 38.0 L under a pressure of 1430 mmHg at…

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

Q: Chlorine can be prepared in the laboratory by the reaction of manganese dioxide with hydrochloric…

A: Volume of Cl2 = 255 mL or 0.255 L Temperature = 25◦C or (273.15 + 25) K Pressure = 745 torr or…

Q: 1. Chromium and magnesium oxide are formed by reacting 75 g of chromium (III) oxide and 59 kg of…

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Q: What is the molecular weight of a gas if a 27.0 g sample has a pressure of 836 mm Hg at 25.0 °C in a…

A: Given data of a gas sample,  Weight of gas sample= 27.0 g  Pressure of gas = 836 mm Hg = 836760atm…

Q: Ammonium nitrate, NH4NO3, can decompose explosively when heated to a high temperature according to…

A: The balanced equation for the given equation can be written as follows, Number of moles = mass /…

Q: Solid ammonium chloride, NHCl, is formed by the reaction of gaseous ammonia, NH3, and hydrogen…

A: Here we are required to find the mass of ammonium chloride produced from the synthesis reaction

Q: The Haber Process synthesizes ammonia at elevated temperatures and pressures. Suppose you combine…

A: In Habers process for the synthesis of ammonia, 3 moles of H2 gas is consumed per mole N2 gas and…

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

A: The can be solved as follows

Q: 12. A 6.35 gram sample of a mixture containing sodium carbonate is found to react completely with…

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Q: Consider the following balanced reaction: 2 Z(g) + 4 A(g) → 3 Y(g) + 2 B(g) Occurs at STP   a.…

A: The reaction given in the question is -…

Q: What is the mass in grams of Al that were reacted with excess HCl if 3.46 L of hydrogen gas were…

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Q: Nitrogen forms a surprising number of compounds with oxygen. A number of these, often given the…

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Q: Nitric acid can be prepared by bubbling dinitrogen pentoxide into water. N2O5 (g) + H2 O(e) → 2 H†…

A: The molarity is an important method to determine the concentration of a solution. It is generally…

Q: Use the standard molar volume of a gas at STP (1mol/22.4L) to find how many moles of methane (CH4)…

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Q: Propane gas, C3H3(g), in a barbecue undergoes combustion with oxygen gas to produce carbon dioxide…

A: Combustion  reaction are those reaction which required required one of reactant as oxygen to undergo…

Q: 4. For the following reaction: 2 NH, (g) + 3 CI_(g) ---> N2(g) + 6 HCI(g) How many moles of nitrogen…

A: Given;

Q: Chlorine can be prepared in the laboratory by the reaction of manganese dioxide with hydrochloric…

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Q: When glucose is burned in a closed container, carbon dioxide gas and water are produced according to…

A: The balanced combustion reaction of glucose is given as  C6H12O6(s) + 6 O2(g) → 6 CO2(g) + 6 H2O(l)…

Q: The product gas, O2, is collected over water at a temperature of 20 °C and a pressure of 748 mm Hg.…

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Q: What is the molar mass (in g/mol) of a gas if it has a density of 1.75 g/L at a pressure of 742 mm…

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Q: What is the volume in liters of hydrogen gas that would be produced by the reaction of 40.6 g of Al…

A: Given :-  2 Al (s) + 6 HCl (aq) → 2 AlCl₃ (aq) + 3 H₂ (g)  Mass of Al = 40.6 g  To be calculated :-…

Q: a. A 27.5 g sample of a gaseous compound containing carbon and hydrogen contains 5.5 g of hydrogen.…

A: a.  Mass of sample = 27.5 g        Mass of hydrogen = 5.5 g    Mass of Carbon = Mass of sample -…

Q: The air bags in cars inflate through the explosive decomposition of a solid to produce a gas. The…

A: The decomposition reaction of sodium azide (NaN3) is given as 2 NaN3 (s) → 2 Na (s) + 3 N2 (g)…

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

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Q: A 55.0-L steel tank at 293 K contains acetylene gas, C2H2, at a pressure of 1.39 atm. Assuming ideal…

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Q: Gallium is a low melting solid that reacts with hydrochloric acid to form hydrogen gas and…

A: The balanced reaction of Ga with HCl is as follows: 2Ga+6HCl→2GaCl3+3H2 1) Vapor pressure of water…

Q: Acetylene gas can be produced by slowly reacting calcium carbide with water. CaC2(s) + 2H2O(l) ➡…

A: The number of moles of calcium carbide that involve in the reaction is determined on substitution…

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.