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: 27. 1.20 g of a gas compound containing C, H and S in 2.10 L. flask has the pressure of 108 mmHg…

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Q: Air contains nitrogen, oxygen, argon, and trace gases. If the partial pressure of nitrogen is 592 mm…

A: Given: Partial pressure of Nitrogen = 592 mm Hg Partial pressure of Oxygen = 160 mm Hg Partial…

Q: 27.   1.20 g of a gas compound containing C, H and S in 2.10 L. flask has the pressure of 108  mmHg…

A: Given, Mass of gas compound = 1.20 g Volume of flask = 2.10 L Pressure = 108 mm Hg Temperature =…

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Q: A.When this equation is balanced, what is the sum of the coefficients? B.How many L of H 2 are made…

A: The solution is as follows :

Q: In a common Freshman College Laboratory experiment, KClO3 is decomposed by  heating to give KCl and…

A: Answer:- Firstly a balanced chemical equation is written then using the simple concept of…

Q: mol sample of a hydrocarbon, CxHy, gives 1.680 L of CO2 at STP and 1.351 g of H2O. (a) What is the…

A: Volume of CO2 = 1.680 L Moles of CO2 = Volume/22.4       = 1.680/22.4      = 0.075 mol So, moles of…

Q: A sample of 1.52 g of tetratomic gas, X4 occupies 275 ml at 0.0 °C and 1.00 atm. Calculate the molar…

A:

Q: Automobile air bags employ a chemical reaction involving the rapid decomposition of sodium azide…

A: 2NaN3 →2Na(s)+3N2(g) Molar Mass of NaN3= 65.021 g/mol Volume of gas at STP= 22.4L Standard…

Q: 4. List major sources (biogenic and anthropogenic) of ammonia in the air What happen to ammonia when…

A: The major sources of NH3 emissions in air is agriculture, including animal husbandry NH3-based…

Q: P4O10 was created by reacting with a phosphorus solid with 0.360 kg of O2 under standard temperature…

A: Ideal gas equation is: PV = nRT                                                           . . . (1)…

Q: None

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Q: What will be the volume of oxygen gas collected at 1.1 atm and 27.0 oC when 12.25 grams of potassium…

A: 2 KClO3(s) →  2 KCl(s) + 3 O2(g)  According to the equation : 2 moles of KClO3 will produce 3 moles…

Q: 5. In the experiment aimed to calculate the molar volume of a gas, a 0.02 mole of [CuCO3.Cu(OH)2]…

A: In the experiment aimed to calculate the molar volume of a gas, a 0.02 mole of [CuCO3.Cu(OH)2]…

Q: A 0.0665 g sample of aluminum metal reacts with hydrochloric acid to give 90.5 mL of hydrogen gas at…

A: Stoichiometry relates the amount of reacting with the formed species. As per this concept, the…

Q: How much mass is required to make 7g of NH; saturated at 145g H,O at 10°C?

A:

Q: How many grams of CaCO3 (100.09 g/mol) would be needed to produce 34.5 L of CO2 at STP?…

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Q: 1. If 55.0 mL of 0.247 M ammonium chloride is reacted with 35.5 mL 0.495 M sodium carbonate, how…

A: Since you have posted a question with multiple sub-parts,we will solve first three sub-parts for…

Q: A metal cylinder with a capacity of 6.0 L is filled with compressed propane (C3H8). The pressure and…

A: Given: Volume = 6.0 L Initial pressure of cylinder = 120 atm Initial temperature of cylinder =  75…

Q: What volume of hydrogen would combine with 42.0 liters of oxygen to form steam at STP? Balance first…

A: STP(standard temperature and pressure) conditions are  Temperature = 25°C = 298 K Pressure = 1 atm…

Q: how many moles of oxygen are required to make 3.8 moles of water?

A:

Q: What is the pressure (in atm) due to the sulfur dioxide gas only, inside a 1.50 L reaction flask at…

A: Volume of flask = 1.50L Pressure of SO2(g) = ? Temperature = 25oC Mass of sodium sulfite = 3.24g

Q: ) If 300.0 grams of aluminum are mixed with 1800.00 ml of 6.0 M HCl, then how many ml of hydrogen…

A: It can solved using unitary method as follows

Q: A person's daily caloric requirement could be obtained from about 675 g of glucose, C 6 H 12 O 6…

A: C6H12O6 (s) + 6 O2 (g) → 6 CO2 (g) + 6 H2O (l)

Q: Liquified petroleum gas (LPG) is propane stored under sufficient pressure to liquify it. When a tank…

A: The effect of pressure and temperature is measured by Boyle’s law and Charles's law respectively.…

Q: How many grams of CaCO3 (100.09 g/mol) would be needed to produce 45.8 L of CO2 at STP?…

A: Given Amount of CO2 to produce from CaCO3(s)

Q: Calculate the mass of O 2 (g) at STP required for the complete combustion of 26.4 L of acetylene (C…

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Q: Which substance is injected in gas fuel to remove SO3 gas M9SO4.7H20 ; Mgo Mg

A: The substance which is injected in gas fuel to remove SO3 gas is

Q: How many moles of fluorine gas will be needed to produce 70.7g of aluminum fluoride by reaction with…

A: Given : Mass of Aluminium fluoride=70.7 g To Find: Moles of fluorine gas Solution: The following…

Q: How many liters of co gas (at STP) are required to produce 4.00 mole Fe?

A: Given information,    Moles of Fe = 4.00

Q: Air is 78.08% nitrogen; thus, when the atmospheric pressure is 1.00 atm the partial pressure of…

A: Given: Total pressure = 0.985 atm. Mole percent of nitrogen = 78.08 % Temperature = 25 oC And volume…

Q: What volume of hydrogen gas at STP is produced from the reaction of 46.51 g of Mg? Balance the…

A: Here we have to determine the volume of hydrogen gas produced at STP by the reaction of 46. 51 gram…

Q: What weight of magnesium is needed to react with HCl to produce 67.2 of hydrogen gas at STP? Mg +…

A: Stoichiometric coefficients are helpful in calculating the amount of product formed from reactant…

Q: How many liters of oxygen gas at STP are required to react with34.7 g of aluminum in the production…

A:

Q: 1.20 g of a gas compound containing C, H and S in 2.10 L. flask has the pressure of 108  mmHg at the…

A: Given :  Mass of gas= 1.20g Volume=2.10L Pressure in flask= 108mm HG  Temperature= 25°C= 298K C =…

Q: How many grams of sodium hydrogen carbonate decompose to give 20.8 mLmL of carbon dioxide gas at…

A: Given reaction is: 2NaHCO3 (s) → Na2CO3 (s) + H2O (l) + CO2 (g)   Now from given reaction, 2 mole of…

Q: What volume (in L) of O2 at STP is required to oxidize 9.6 L of NO at STP to NO2?

A: To calculate  volume (in L) of O2 at STP: The balanced equation is

Q: How many liters of H₂ gas can be produced at STP from 35.0 grams of zinc? Zn + 2 HCI-> ZnCl₂ + H₂

A: The mass of zinc given is 35.0 g.The balanced chemical equation is .To find the volume of H2…

Q: How many moles of a gas mixture would be needed to provide 0.555 mole O2, if the mole fraction of O2…

A:

Q: Air entering the lungs ends up in tiny sacs called alveoli. It is from the alveoli that oxygen…

A: Radius (r) = 0.0041 cmGiven alveolus is a perfect sphere.So, volume of alveolus= 34​ πr3= 34​ × 722​…

Q: An ideal gas “follows all the rules,” what causes gas to “break the rules?”

A: An ideal gas is a gas that is composed of a set of particles moving randomly, and do not interact…

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.