Magnesium metal reacts with hydrochloric acid to produce magnesium chloride and hydrogen gas. What mass of magnesium is needed to react with excess hydrochloric acid to produce 0.25 L hydrogen gas at STP (1.0 atm and 0.0 oC)?

Q: How many moes of oxygen gas are needed to react completely with 52.0 L of gaseous CH4 at stp during…

A: Methane +Oxygen →carbon dioxide + water Balanced chemical Equation: CH4(g) +2O2(g) →CO2(g) +H2O…

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

A: Given information: temperature is 20 °C = 20+273 = 293 K pressure of wet gas 753 mm Hg vapor…

Q: How many grams of gas are present in each of the following cases? (a) 0.100 L of CO2 at 307 torr…

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Q: What mass of solid chloride is formed from the synthesis of excess solid sodium and 35.34 L of…

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Q: A sample of hydrogen sulfide gas occupies 267 mL at 35°C and 0.850 atm pressure. What is its volume…

A: Given :  Initial pressure = 0.850 atm  Initial volume = 267 mL  Initial temperature = 35°C  To be…

Q: In CACO3 + HCI → CaCl2 + H2O+ CO2 , how many liters of carbon dioxide gas, measured at STP, can be…

A: Given balanced equation is as follows. CaCO3+2HCl→CaCl2+H2O+CO2 That means 1 mole CaCO3 will produce…

Q: A 1.00 L sample of dry gas at 16 °C and 744 mmHg contains 0.520 g N₂. What is the partial pressure…

A: Given that, Volume of the dry gas is 1.00 L. Temperature = 160C Total pressure = 744 mm Hg Mass of…

Q: A 4.00-L flask contains nitrogen gas at 25°C and 1.00 atm pressure. What is the final pressure in…

A: Using the ideal gas equation to find the pressure of the gas. the formula for the ideal gas equation…

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

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Q: A gas (4.0 g) occupies 11.2 L at 2 atm and 273 K. What is the molar mass of the gas? What is the…

A: Given data contains, Mass=4.0 g Volume=11.2 L Pressure=2 atm Temperature=273 K

Q: A 1.17-g sample of an unknown gas has a volume of 731 mL and a pressure of 468 mm Hg at 34.6 °C.…

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

Q: A compressed gas cylinder of CO2 gas has a volume of 23.5 L at room temperature (25C) and a pressure…

A: Given, volume of CO2 = 23.5 L Temperature  = 25°C = (273+25) = 298 K Pressure = 650 KPa  = 650/101 =…

Q: 4. A 6.35 L sample of CO is collected at 55 °C and 1.37 atm. What volume will the gas occupy at STP…

A: Using ideal gas equation PV = nRT two times at different temperature we can calculate volume at STP.

Q: During the making of steel, iron(II) oxide is reduced to metallic iron by treatment with carbon…

A: The moles of Fe can be calculated as

Q: V = 375 mL at 1.15 atm;  V = ? at 775 mmHg?

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

A: Zn(s)   +    2 HCl(aq)      -->   ZnCl2 (aq)    +   H2 (g)        1 mol…

Q: How many liters of oxygen is needed to react with 42.0 L of hydrogen at STP?

A: Given :- volume of H2 = 42.0 L  To calculate :- volume of O2 (in L)

Q: A gaseous compound has a density of 1.69 g/L at 25.2 °C and 1.45 atm. What is the molar mass of the…

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Q: What volume in liters of H, gas would be produced by the complete reaction of 2.93 g of Al solid at…

A: Given  Mass of Al = 2.93 g Volume of H2 produced = ?

Q: If a 3 mole sample of nitrogen at 25C, 3.0 atm, and 15 L is compressed to occupy 2.5 L, what is the…

A: Given, Number of moles of nitrogen =3 moleinitial pressure P1 =3.0 atminitial volume V1 =15.0 Lgas…

Q: How many liters of hydrogen gas would be produced by the complete reaction of 2.93 g of Al at STP…

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Q: The volume of HCl gas required to react with excess Ca to produce 11.4 L of hydrogen gas at 1.62 atm…

A: Given, The volume of HCl gas required to react with excess Ca to produce 11.4 L of hydrogen gas at…

Q: When aluminum is placed in concentrated hydrochloric acid, hydrogen gas is produced. 2 Al(s) + 6…

A: The balanced chemical reaction of aluminium with hydrochloric acid at STP to produce aluminium…

Q: An acetylene tank, C,H, is used for an oxyacetylene welding torch that undergoes a combustion with…

A: Answers are explained below. a) Balanced chemical equation for the the given problem is: C2H2(g)…

Q: From the balanced chemical equation: 2C6H6(l) + 15O2(g)  12CO2(g) + 6H2O(l) How much CO2 (in L) is…

A: At S. T. P, volume of 1 mol of gas is = 22.4 L

Q: if 89.83 L of water are produced at STP? (4pts)

A: Produced volume of H2O =89.83 L 2C4H10(g) + 13O2(g) -> 8CO2(g) + 10H2O(g)

Q: A gas occupies 45.0 L at 2.00 atm pressure and 27°C. Calculate its volume at STP.

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Q: 12. Calculate the molar mass of a gaseous substance if 0.158 g of the gas occupies 31.7 mL at STP.

A: A numerical problem based on mole concept, which is to be accomplished.

Q: odium metal are needed to generate 4.00 L of hydrogen gas at stp from water

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Q: g/mol. The molecular weight of a gas that has a density of 4.1 g/L at STP is

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Q: 21. During the combustion of ethane (C₂H6) 200. L of carbon dioxide are produced at 780. mm Hg and…

A: The alkane undergoes combustion reaction to form carbon dioxide and water.  The ideal gas equation…

Q: What is the total volume of the CO2(g) and H2O(g) at 400 ⁰C and 1.25 atm produced by the combustion…

A: In this question, we have to find out the correct answer of given problem by the help of unitary…

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

A: Temperature=25 °CPressure=758 mm Hg1 atm=760 mm HgSo, pressure (in atm)=0.997 atm Volume=7.27…

Q: A 10.0 L vessel at 298 K contains O2(g) at a pressure of 740. mmHg. What mass of He(g) would be…

A: In this question, we want to determine the mass of He(g) gas is added into 10.0L vessel so that it's…

Q: Iron oxide, FeO2, is produced by the reaction Fe + O2 ® FeO2 (87.8 g/mol). How many grams of FeO2…

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Q: Ammonium sulfate is used as a nitrogen and sulfur fertilizer. It is produced by reacting ammonia…

A: (a) Fertilisers: These are the group of chemical substances which are added  crop to increase their…

Q: What volume of CO2 gas is produced in the combustion of 4.34 g CH4 with excess oxygen at STP?

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Q: 2.50 g of hydrogen is reacted with 30.0 L of carbon monoxide at STP to produce CH3OH. What is the…

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Q: What volume of carbon dioxide is produced at STP when 255.45 g propane is reacted with 650.0 L…

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

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Q: How many grams of copper(II) carbonate must be decomposed to produce 18 L of CO2 at STP?

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Q: 1. If a gas at 0.671 atm pressure in a volume of 0.407 L is compressed to 0.208 L, what is the new…

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Q: Oxygen gas can be prepared by heating potassium chlorate according to the following equation: 2KC10,…

A: we have to calculate the number of moles of KClO3

Q: A gas at 721 mmHg and 38°C occupies a volume of 3.94 L. Calculate its volume at STP.

A: STP stands for standard temperature and pressure. The standard temperature and pressure values are:…

Q: A substance containing only carbon and hydrogen is analyzed and found to contain 85.7% carbon by…

A: Density of compound at STP = 1.87 g/Li.e. 1 L of compound weighs 1.87 g1 mol of compound at STP =…

Q: A sample of nitrogen gas had a volume of 36.7 mL at 64°C and 752 mm Hg. What is the volume of this…

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Q: In CaCO3 + HCI → CaCl2 + H2O+ CO2 , how many liters of carbon dioxide gas, measured at STP,can be…

A: 1 mole = 6.022×1023 (Avogadro's number ) The mass of one mole of atoms is called atomic mass  For…

Q: Lithium metal reacts with nitrogen gas to make the compound lithium nitride. What mass of lithium…

A: To solve this problem we first calculate the number of moles of nitrogen in 58.1 mL at STP  Then…

Q: Calculate the volume of nitrogen dioxide gas in mL required to make 10.0 g nitric acid at 1.80 atm…

A: Welcome to bartleby !

Q: How many grams of Na solid are required to completely react with 19.2 L of Cl: gas at STP according…

A: Given equation is                                                             2 Na(s)     +…

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.