A chemical reaction occurring in a cylinder equipped with a moveable piston produces 0.641 mol of a gaseous product. If the cylinder contained 0.240 mol of gas before the reaction and had an initial volume of 2.19 L, what was its volume after the reaction? (Assume that pressure and temperature are constant and that the initial amount of gas completely reacts.)

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: 10) Iron nail rusts when exposed to oxygen.4Fe(s) + 3 O2(g)2 Fe2O3(s) a)What volume of oxygen gasat…

A: Given: 4Fe(s) + 3O2(g)--------->2 Fe2O3(s). The temperature, (T) =  310C = (.31+273.15) = 304.15…

Q: Which of the following statements are true? Which are false? Why is each true or false? (c) A…

A: A substance has three basic physical property- volume, pressure and temperature

Q: Consider a 1.53-L sample of gaseous SO2 at a pressure of 5.6 x 103Pa. If the pressure is changed to…

A: At constant temperature: P1V1 = P2V2 P1 = initial pressure; V1 = initial volume; P2 = final pressure…

Q: A 212 L sample of a gas exerts a pressure of 42.4 kPa. If its volume is expanded to 319 L, what will…

A: The question is based on the concept of Boyle's law. it states that for a given amount of gas , at…

Q: A balloon contains 0.115 mol of gas and has a volume of 2.87L If an additional 0.132 mol of gas is…

A: According to Ideal gas equation,  PV = nRT   where, P = pressure of gas V = volume occupied by the…

Q: Consider the following unbalanced equation: C2H5OH(g) + O2(g) → CO2(g) + H2O(l) 1.55 g of ethanol…

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Q: Ammonia gas is synthesized according to the balanced equation, N2(g)+3H2(g)=2NH3(g) If 2.75 L N2…

A: The term limiting reagent can be defined as the reactant in a given reaction which is used to…

Q: 1. Write a balanced chemical equation, including physical state symbols, for the decomposition of…

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Q: Suppose a student performed a similar experiment using pentane and hexane as his gases. Pentane…

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Q: If 7.56 L of a gas are collected at a pressure of 745 mm Hg, then what volume will this gas occupy…

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Q: Methane is burned in a complete combustion reaction. CH₂(g) +20₂(g) → CO₂(g) + 2H₂O(g) What volume…

A: Volume of one mole gas at stp is 22.4 L

Q: As 1 g of the radioactive element radium decays over 1 year, it produces 1.16 × 1018 alpha particles…

A: Interpretation - To determine the pressure of the helium gas ( in pascal ) when 1 g of the…

Q: A 7.53 L container of oxygen gas at 12.1 °C is heated to 87.9 °C. Assuming that the volume of the…

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Q: If 34.0 mLmL of nitrogen gas reacts with 79.0 mLmL of oxygen gas, what is the volume of N2O3N2O3…

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Q: Ethane burns in air to give  and .   What volume of  (L) is required for complete reaction with 3.0…

A: Since temperature and pressure are constant, the number of moles is directly proportional to the…

Q: Nitric acid can be produced by the reaction of gaseous nitrogen dioxide with water. 3 NO2(g) +…

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Q: B. In the following graphs, velocity represents the molecular speed, Velocity (m/s) (i) If the plot…

A: Ideal gases are hypothetical gases which do have real existence. A gas can behave ideally at low…

Q: Consider the following reaction: 4NH3(g) + 502(g) → 4NO(g) + 6H;0(g) If 1.30 L of NH3 reacts with O2…

A: Chemical reactions are those reactions which undergo any chemical change. Chemical reaction is…

Q: if 3.25 mol of argon gas occupies a volume of 10.5 L at a particular temperature and pressure, what…

A: Given, Moles of Argon gas (n1) = 3.25Volume (V1) occupied = 10.5 Luu nud to find the volume occupied…

Q: Water can be broken down via electrolysis according to the reaction, 2 H2O (l) --> 2 H2 (g) + O2…

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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: Because it is difficult to measure the mass of a sample of a helium, a student transferred the…

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Q: Consider the following reaction: 4 Als) + 3 O2(9) → 2 Al2O3(s) It takes 4.52 L of pure oxygen gas at…

A: From given data  Volume of O2 gas V = 4.52 L    As, at STP T = 273.15 K P = 1 atm   Value of gas…

Q: A balloon contains 0.29 moles Ar with a volume of 3.8 L under certain conditions. What volume will…

A: Given  Initial Volume ( V1 ) = 3.8 L Initial Number of mole ( n1 )  = 0.29 mole  Final Number of…

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 42.561 L of gas is collected at a temperature of 28.861°C and a total pressure of 787.00 torr,…

A: The given data contains, Volume = 42.561 L. Temperature = 301.861 K. Pressure = 787 torr =  1.035…

Q: If the temperature of a gas confined to such a cylinder is raised from 251°C to 536°C, what is the…

A: Gas is considered to be the third state of matter. The behaviour of gases can be well explained…

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: 233 mL nitrogen gas reacts with 583 mL hydrogen gas. Both gases are at the same temperature and…

A: It is given that 233 mL of nitrogen is reacting with 583 mL of hydrogen gas at the same temperature…

Q: Nitrogen and oxygen gases react to form dinitrogen trioxide gas. 2 N2(g) + 3 O2(g)  2 N2O3(g) At a…

A: 2N2(g) + 3O2(g) → 2 N2O3(g) Given that 2.8 L of N2 reacts with 4.2 L of O2.

Q: A sample of helium gas at a pressure of 699 tor and a temperature of 23.4 C,occupies a volume of 789…

A: Given: Initial pressure = 699 torr Initial volume = 789 mL And final pressure = 1.05 X 103 torr =…

Q: What is the volume of the following sample of gas at STP?   7.90 mol SF6   (Express the volume to…

A: 1 mole of substance is equal to avogadro's  constant which is equal to 6.022 * 10^ 23 atoms.

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: 7.If container "A" is occupied by 1.0 mole of oxygen gas (molar mass 32.0 g/mol) while container "B"…

A: Using ideal gas equation,  PV=nRT  If T and P are constant then volume is directly proportional to…

Q: A 2.43 L volume of hydrogen measured at −150. °C is warmed to 100.°C. Calculate the volume (in L) of…

A: Given: Initial Volume V1 = 2.43 L Initial Temperature T1 = -150 oC= 123 K Final Temperature T2 = 100…

Q: A 1.91 mol sample of hydrogen gas occupies 22.9 L. How many mol of hydrogen are needed to fi 113.9 L…

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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: A balloon contains 0.158 mol of gas and has a volume of 2.46 L. If an additional 0.113 mol of gas is…

A: t the same temperature and pressure conditions, the equation become as shown below: By using…

Q: What is the total volume of gaseous products formed when 32.4 liters of bromine trifluoride react…

A:

Q: If the temperature of a gas confined to such a cylinder is raised from 272°C to 692°C, what is the…

A: At constant pressure, volume of the gas is directly proportional to its temperature. V1/T1 = V2/T2 =…

Q: What is the mass of 12.0L of Chlorine gas (Cl2, 70.9 g/mol) measured at 1250mmHg and 157C? a) 2.94…

A: We have 12 L of Cl2 gas measured at pressure of 1250 mmHg and 157°C. We have to calculate the mass…

Q: If 95.0 mLmL of nitrogen gas reacts with 35.0 mLmL of oxygen gas, what is the volume of NO2NO2…

A: Concept based on Stoichiometric calculation.

Q: A gas initially at 4.83 L, 1.36 atm, and 81°C undergoes a change so that its final volume and…

A:

Q: What volume of bromine is required to react with 80.2 liters of chlorine gas according to the…

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Q: Hydrogen cyanide is prepared commercially by the reaction of methane CH4(g), ammonia, NH3(g), and…

A: The commercial preparation of hydrogen cyanide is to be expressed.

Q: Gaseous ammonia is synthesized from nitrogen and hydrogen by the reaction N2(g) + 3H2(g)→ 2NH3(g)…

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Q: Olympic cyclists fill their tires with helium to make them lighter. Assume the volume of the tire is…

A: First, the moles of air present in tires is calculated as follows,

Q: A 19.50 g sample of a gas occupies a volume of 24.8 L at 22.7ºC and 748.3 mmHg.  What is its…

A:

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.