A balloon filled with NO2 (g) has an initial volume of 8 L.  If half the NO2 reacts to form N2O4 (g) at constant temperature and pressure, what is the final volume (L) of the balloon?

Q: The volume (L) of hydrogen gas at 38.0°C and 760 torr that can be produced by the reaction of 4.33 g…

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Q: A sample of oxygen that occupies 1.00 106 mL at 575 mm Hg is subjected to a pressure of 1.15 atm.…

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Q: A certain gas has a molar mass of 45.88 g/mol. What will be its density at STP? O 2.86 g/L O 2.24…

A: • The values provided in the question are:-  i) Molar mass of a certain gas, M = 45.88 g/mol…

Q: If 22.5 L of nitrogen gas at 0.85 atm is decompressed to 0.60 atm at constant temperature. What is…

A: In this question, we want to determine the new volume of the nitrogen gas.  You can see details…

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: What volume of O2 at 798 mmHg and 41 ∘C is required to synthesize 23.0 mol of NO?

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

A: Vapor pressure of water = 23.8 mm Hg Pressure of wet gas = 757 mm Hg Temperature = 25 °C = 25 + 273…

Q: A 0.893-g sample of N2O4 has a pressure of 502 mm Hg at 12.34oC.  What is the volume of the sample?

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Q: A large tank is filled with 125 mol O₂ to a pressure of 2245 torr at 25.0 °C. What is the volume (in…

A: The ideal gas equation is  PV = nRT  P = pressure  V = volume  n = moles of gas  R = gas constant =…

Q: 4Al(s)+3O2(g)→2Al2O3(s) What volume of O2 gas, measured at 783mmHg and 18∘C, is required to…

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Q: What volume will be occupied by 8.00 g of oxygen, O2, at STP?

A: The moles of Oxygen is calculated as follows,

Q: What is the volume of 2.43 x 10^23 molecules of N2 gas at STP.

A: 6.02* 1023 molecules = 1 mole  2.43* 1023 molecules = 0.404 mole  Then use : PV = nRT  where P =…

Q: What size container do you need to hold 0.0459 mol of N 2 gas at STP?

A: Given: Number of moles of nitrogen = 0.0459 To find: The size of the container

Q: What volume of hydrogen at 27 °C and 723 torr may be prepared by the reaction of 8.88 g of gallium…

A: Given:

Q: When heated, mercury (II) oxide (HgO) decomposes to give O2 gas. 2 HgO (s) → 2 Hg (l) + O2 (g) What…

A: From the above reaction we can see that 2 moles of HgO is decomposing to form 1 mole of O2  hence…

Q: 4KO2(s) + 2CO2(g) 2K2CO3(s) + 302(g) What is the maximum volume of oxygen that can be produced when…

A: Given balanced equation is as follows. 4KO2s+2CO2g→2K2CO3s+3O2g The ratio between KO2 and CO2 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: what is the volume of O2 in mL and L?   Temperature of O2(°C) to the nearest whole degree: 24…

A: Temperature = 24°C = 297K Pressure = 732 mmHg= 0.963 atm R= gas constant = 0.0821Latm/molK Mass of…

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

A:

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

A: To solve this problem we will use Stoichiometry of balanced chemical equation .  First we will find…

Q: if a sample in a 32. 8 L container contains 2.98 mol of hydrogen gas at 35.1 C and 2.3ATM how many…

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Q: At constant temperature, a sample of 6L of N2 at 2.0 atm pressure is allowed to expand until the…

A: The new pressure of the sample of the gas can be calculated by following formula - P1 V1 = P2 V2…

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: What volume of H2 will combine with 22 L Cl2 (g) to form HCI (g)? What volume of HCI (g) will be…

A: The given data : The volume of Cl2 = 22 L To determine: The Volume of H2 The volume of HCl(g)

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

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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: What is the mass of hydrogen gas (RMM=2) that occupies volume of 35 L at STP?

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Q: Starting with 35.5 moles of O2 in a bottle, calculate the volume of O2 the bottle could deliver to a…

A: Given:  P = 0.372 atm  T = -38.0°C = 235 K  n = 35.5 moles  R  =0.0821 atm L mol-1 K-1

Q: What volume (L) of NH3 gas at 1.2182 atm and 298 K is produced by the complete reaction of 19.32 g…

A: Given: Pressure = 1.2182 atm  Temperature = 298K  Mass = 19.32 g  To find : Volume of NH3 in liters…

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: A 334-mL cylinder for use in chemistry lectures contains 5.225 g of helium at 23 °C. How many grams…

A: Given,Mass = 5.225 gMolar mass of helium is = 4.0 g/molVolume = 0.334 LTemperature = 23 oC = 273.15…

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

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Q: Predict the number of molecules for diatomic gas, X, if the volume at STP is 44.80 L. [Molar volume…

A: We have to calculate the number of molecules for gas.

Q: The mass of 1.12 L gas at STP is found to be 6.23 g. What is the molar mass of gas Y ?

A: Given data is: Volume of gas = 1.12 L  Given mass = 6.23 g The procedure to finding the molar mass…

Q: What is the mass of a sample of chlorine gas that occupies a volume of 2.500 L at STP? 1) 1.295 g O…

A: One mole of any gas under STP conditions will occupy a volume of 22.4 L For example : 1 mole of…

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: If a sample of Argon gas occupies 2.50 L at 100.0 °C and 5.00 atm, what volume will it occupy at 0.0…

A: Ideal gases are those gases which follow ideal gas equation. The relation between pressure, volume,…

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: 62.0 g of nitrogen at 100oC is in a 155.0 L container. How much nitrogen, in grams, must be removed…

A: Answer is explained below.

Q: A sample of gas of mass 3.82g occupies a volume of 539 mL at 27 ⁰ C and 1.0 atm pressure. What is…

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

A: Given, Volume of N2 at STP = 1580 LVolume of H2 at STP = 4240 LWe know that, at STP 1 mole of a gas…

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: A container with a volume of 371 L contains how many moles of O2 at STP?

A: Given :- volume of O2 = 371 L To calculate :- number of moles of O2

Q: If the density of a gas is 1.2 g/L at 745 mmHg and 23.5◦C, what is the molar mass of the gas?

A: An ideal gas equation is derived from the combination of Charle's law, Boyle's law, and Avogadro…

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

A:

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

A: We have to calculate the volume of Reactant left.

Q: 2. A sample of argon gas at STP occupies 56.2 liters. Determine the number of moles of argon and the…

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Q: What volume of NH3 (measured at STP) can be produced by reacting 8.51 liters (STP) N2 with 3.15 x…

A: Use stoichiometry of the equation to get the answer.

Q: According to Dalton, the pressure exerted by a gas inside a container is proportional to the number…

A: As ,the pressure exerted by a gas inside a container is proportional to the number of molecules of…

Q: What volume of H2 will be combine with the 22 L CL2 (g) to form HCl (g)? What volume of HCl (g) will…

A: Given data contains,  Volume of chlorine is 22L.

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.