Consider the following reaction: 4 Als) + 3 O2(9) → 2 Al2O3(s) It takes 4.52 L of pure oxygen gas at STP to react completely with a certain sample of aluminum. What is the mass of aluminum reacted?

Q: Solid sodium azide (NaN3) reacts with Iron(III)oxide to produce solid sodium oxide, iron metal and…

A: The balanced chemical equation representing the reaction of sodium azide with iron (III) oxide can…

Q: What is the mass in grams of Al that were reacted with excess HCl if 1.36 L of hydrogen gas were…

A: We have to find mass in grams of Al that were reacted with excess HCl

Q: if the density of an ideal gas at STP is found to be 1.96 g/L, what is the molar mass?

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Q: 50.0 mL of 6.0 M acetic acid reacts with 1.55 g magnesium. what volume of hydrogen gas will be…

A: Stoichiometry, the essential technique widely utilized for obtaining product's amount by relating…

Q: Potassium permanganate, KMnO4, decomposes to yield oxygen gas, O2, according to the balanced…

A: in Balanced chemical equation equal number of atoms are present in reactent and products side.

Q: What volume (in L) does a 1.34 g  sample of chlorine gas occupy at SATP?

A: Ideal gas equation is equation which obeys gas law under all conditions of temperature and pressure.

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

A: Given; N2 (g) + 3 H2 (g)  ➝ 2 NH3 (g) At STP, Volume of nitrogen gas (N2) reacts = 1580 L Volume of…

Q: CH3OH can be synthesized by the following reaction. CO(g)+2H2(g)→CH3OH(g) What volume of H2 gas (in…

A: Given:Mass of CH3OH = 26.2 g.Temperature = 90 oC = 273 + 90 = 3363 KPressure = 752 mmHg = 0.9895…

Q: In the reaction, 2KClO3(s)⟶2KCl(s)+3O2(g) what mass of potassium chlorate, KClO3, would be required…

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Q: If the balloon described in Question 6.44 is released into the air and rises to an altitude of…

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Q: When aluminum is placed in concentrated hydrochloric acid, hydrogen gas is produced.…

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Q: P4(g) + Br2(g) --> PBr3(g) If 18.2 L of phosphorus at 21 oC and 1.02 atm is reacted with 62.4 L…

A: Reaction's stoichiometry obtained by numbers associated to species in balanced equations tells us…

Q: After dissolving an unknown tablet in water, the tablet dissolves and liberates a gas. Suppose at 1…

A: Given that:            Volume of gas (V) = 360 mL = 0.360 L               Temperature (T) = 20℃ =…

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

A: Limiting Reagent is H2­ and 2730 L of NH3 will be produced in the given process.

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

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Q: Calculate the molar mass of a gas that has a density of 1.70 g/L at STP

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Q: The hydrogen gas formed in a chemical reaction is collected over water at 30.0 °C at a total…

A: 67.  At 30°C the vapor pressure of water is 31.8 mm Hg. Simply subtract the pressure water vapor…

Q: A gas sample weighing 19.66 g occupies a volume of 7.85 L at STP. What is the molar mass of this gas…

A: The ideal gas equation is given as:

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

A:

Q: CH3OH can be synthesized by the following reaction.CO(g)+2H2(g)→CH3OH(g) What volume of H2 gas (in…

A: According to the question, methanol is prepared by the given reaction.From this reaction, 2 moles of…

Q: If the temperature of a gas confined to such a cylinder is raised from 221°C to 635°C, what is the…

A: Since the cylinder is confined means no change in moles of gas And pressure is also given constant…

Q: Consider the following reaction: 4Al (s) + 3O2 (g) → 2Al2O3 (s) It takes 2.00 L of pure oxygen gas…

A: Answer:- This question is answered by using the simple concept of stoichiometry which involves the…

Q: 73. CH3OH can be synthesized by the reaction: CH3OH(g) CO(g) + 2 H2(g) What volume of H2 gas (in L),…

A: This question can be solved using the law of multiple proportions and ideal gas law. Here we are…

Q: 1L of a gas at STP weighs 1.97g. What is molecular mass?

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Q: Oxygen gas reacts with powdered aluminum according to the reaction: 4Al(s) + 302(g)→ 2Al,O3 (s) Part…

A: 4 Al(s) + 3 O2 (g) →2 Al2O3 (s) Number of moles of Al = Amount of Al/ atomic mass of Al…

Q: Aluminum reacts with oxygen to form aluminum oxide. Al(s) + 02(g) + Al203(s) A 44.751 gram sample of…

A: Given, Al(s) + O2(g) ➝ Al2O3 Balancing the above equation, we get 4Al(s) + 3O2(g) ➝ 2Al2O3 Mass of…

Q: If the temperature of a gas confined to such a cylinder is raised from 245°C to 554°C, what is the…

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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: What is the volume of this sample?

A: Ideal Gas Law :-  PV = nRT  P is the pressure of gas  V is the volume occupied by gas n is the…

Q: A 20.0 g sample of mercury(II) oxide (HgO, molar mass = 216.6 g/mol) is heated strongly, causing it…

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Q: Oxygen gas reacts with powdered aluminum according to the reaction:4 Al(s) + 3 O2(g) ------->2…

A: Given: Pressure= 782 mmHg= 782760atm=1.0289 atm Temperature= 25°C=25+273.15 K=298.15 K Mass of Al=…

Q: Consider the following reaction: 4Al (s) + 3O2 (g) → 2A12O3 (s) It takes 2.00 L of pure oxygen gas…

A: Given data: Volume = 2.00 L STP condition.

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: A chemical reaction occurring in a cylinder equipped with a moveable piston produces 0.641 mol of a…

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Q: A 3.66-g sample containing Zn (65.4 g/mol) and Mg (24.3 g/mol) reacted with a dilute acid to produce…

A: Given, Weight of sample containing Zn & Mg : 3.66 g Temperature: 300 K Pressure : 0.997 atm…

Q: What is the mass in grams of Al that were reacted with excess HCl if 1.28 L of hydrogen gas were…

A: The given equation is: Given data is,  Volume of H2 at STP = 1.28 L   Since, at STP 1 mole of any…

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: Given the equation: 2 NH3 (g) + 3 Cl2(g) → N2(g) + 6 HCl(g) How many grams of chlorine must react…

A: Given: The volume of N2(g) = 16.0 L. The pressure, (P) = 1.2 atm. The temperature, (T) = 23 0C =…

Q: What is the density of 1.00 mol of carbon monoxide gas at STP?

A: We have given that  1 mole of CO at STP  Molar mass CO = 28 g/mole

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

A: Given Chemical reaction:

Q: What is the mass of CH4 in a sample that occupies a volume of 16.5 L at STP?

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Q: 1. A student neglected to keep the end of the delivery tube under the surface of the water displaced…

A: 1. Answer - According to the question - 1.The effect on  volume of the hydrogen collected - As…

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

A: At STP the volume of one mole of gas is 22.4 L. Then, at STP, 22.4L of N2 contains 1 mole of N2 .…

Q: If 12.4L of sulfur trioxide, SO3, decomposes into sulfur dioxide, SO, and oxygen, what volume of…

A: 12.4 L of sulfur Trioxide        Given Reaction :-                SO3 --->SO2 + O2…

Q: 12. What is the molar mass of a gas that has a density of 5.75 g/L at STP?

A: Write the ideal gas equation. PV= nRT where P is the pressure, V is the volume, n is the number of…

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

A: N₂ (g) + 3 H₂ (g) → 2 NH₃ (g)  According to the above reaction 1 mole of Nitrogen will react with 3…

Q: In the reaction,   2KClO3(s)⟶2KCl(s)+3O2(g)2KClO3(s)⟶2KCl(s)+3O2(g)   what mass of potassium…

A: The given chemical reaction is- 2KClO3(s)  → 2KCl (s)   +   3 O2 (g) To convert any given amount of…

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

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Q: If gas X has a density of 4.98 g/L at STP, what is the molar mass of gas X?

A: From ideal gas equation  P V = n R T                  n= mol= mass/molar mass P V = (w/M) R T  P M =…

Q: The density of air at STP is 1.2754 g/L. If your "250 mL" flask held 272 mL of water (also the…

A: Density, mass and volume are related by the equation given below:

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.