A gas is expanded from an initial volume of 20.5 L at 0.92 atm at 23 degrees celsius to a final volume of 34.6 L. During the expansion, the gas cools to 12 degrees celsius. What is the final pressure?  (3pts.)

Q: for the balanced equation: 2C4H10(g) + 13O2(g) -> 8CO2(g) + 10H2O(g) if 50.0 L of C4H10 are reacted…

A: Given: The balanced equation is, 2C4H10(g) + 13O2(g) -> 8CO2(g) + 10H2O(g) Volume of C4H10 =50.0…

Q: what was the initial temperature?

A: Given :- initial volume = 6.0 L  Final volume = 15 L  Final temperature = 78°C  To calculate :-…

Q: The pressure of a gas changes from 220. kPa to 95.0 kPa. The volume changes from 49.0 L to 38.5 L.…

A: In ideal gas there is no force of attraction, collision are elastic and pressure will generate by…

Q: Zn (s) + H2SO4 (aq) --> H2 (g) + ZnSO4 (aq) You run a reaction and collect 166.3 mL of hydrogen gas…

A: Hydrogen gas Volume = V = 166.3 mL = 0.1663 L Pressure = P = 740.3 torr = 0.974 atm Temperature = T…

Q: In alcohol fermentation yeast converts glucose to ethanol and carbon dioxide:…

A: In this question, we want to determine the percent yield of the Reaction.  You can see details…

Q: Butane, C4H10, is an easily liquefied gaseous fuel. Calculate the density of butane gas at 0.957 atm…

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Q: Is the initial volume of the gas? 2. A gas has a volume of 3.4 L at 25°C, what is the final…

A: Given-> V1 = 3.4 L T1 = 25°C =25 + 273 = 298 K V2 = 4.7 L T2 = ?

Q: What is the volume of O2 gas made from decomposing of 1.70 g NaNO3 (85.00 ) at 0°C and 1 atm?

A: One mole of an ideal gas occupies 22.4 L of volume in standard conditions (STP).  This is called the…

Q: If 25.8 L of H2 is collected at 1.34 atm and 38°C, what was the mass of magnesium reacted? Mg(s) +…

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Q: SO2 (0.0780mol) and CO2 (0.114mol) are placed in a 750.mL container at 50.0˚C. What is the partial…

A: Ideal gas equation is: PV = nRT…

Q: How many moles of hydrochloric acid are needed to produce 29.9 L of chlorine gas according to the…

A: Given , Chemical Reaction: HCl (aq) + O2(g) --> H2O (l) + Cl2(g)  Volume of Cl2 = 29.9 L

Q: What is the temperature, in degrees Celsius, of 5.46 moles of helium (He) gas confined to a volume…

A: The ideal gas equation is given by,                                                PV = nRT Where, P…

Q: The volume of a gas at 3.2atm is 4.0L. If the pressure is increased to 6.4atm, what will be the new…

A: Boyle's law This law states that the absolute pressure exerted by a given mass of an ideal gas is…

Q: sealed container holds 5.0 L of a gas. How many moles of gas is in this container at STP?

A: At S.T.P any gas occupies 22.4 litre of volume.

Q: An air bubble has a volume of 0.490 L at 17 ∘C∘.What is the volume, in liters, at 6 ∘C∘, if nn and P…

A: Given: Initial volume = 0.490 L Initial temperature = 17 oC And final temperature = 6 oC

Q: Butane, C4H10, is an easily liquefied gaseous fuel. Calculate the density of butane gas at 0.857 atm…

A:

Q: For many purposes we can treat propane (C₂Hg) as an ideal gas at temperatures above its boiling…

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Q: b. How many moles of gaseous SO2 must react if 2.46 kJ of heat are absorbed? 4.377*E-3 mol c. What…

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Q: For many purposes we can treat ammonia (NH,) as an ideal gas at temperatures above its boiling point…

A: Given-> T1= -19.0°C = -19.0 + 273 = 254 K T2= 21.0°C = 21.0 + 273 = 294 K P1= 0.29 kpa  Volume in…

Q: 3. A Ne gas sample has the temperature of 56.2 °C and occupies 67.1 L. What is the new temperature…

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Q: Cyclopropane, C3H6, is used as a general anesthetic. If a sample of cyclopropane stored in a 2.18-L…

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Q: 3. A plastic tank containing a gas of 7.8 L and 5.35 atm at 7 °C weighs 96 g. If the empty tank…

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Q: A container is filled with 0.661 gg of O2O2 at 5∘C∘C and 848 mmHgmmHg .   What is the volume, in…

A: Given: mass of O2=0.661 gTemperature(T)=5oC                            =(5+273) K…

Q: What is the pressure of a gas that originally occupied 3.0L at a pressure of 4.2atm, if the volume…

A: Boyle's law forecasts a link at a constant temperature between pressure and gas volume. Boyle's law…

Q: How many liters of CH3OH gas are formed when 3.20 L of H2 gas are completely reacted at STP…

A: We know that at STP, 1 mole of any gas occupies 22.4L of volume as per ideal gas equation. So we…

Q: What volume of oxygen, measured at 25C and 745 mmHg, is required to burn 3.56 g of calcium? 2 Ca (s)…

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Q: In the lab, students decomposed a sample of calcium carbonate by heating it over a Bunsen burner and…

A: Caco3 ------------  cao +co2 molecular mass of caco3 =100 g  Molecular mass of co2 =44g

Q: A cylinder contains 12.8 L of air at a total pressure of 45.0 psi and a temperature of 30 ∘C. How…

A: Given: The volume of air in the cylinder = 12.8 L The total pressure = 45.0 psi Temperature = 30 ∘C…

Q: Using combined law    If I have 2.9L of gas at a pressure of 5atm and a temperature of 50℃, what…

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Q: A rigid gas cylinder contains 370 grams of oxygen gas at 30 atm and 25 Celsius. What must be the…

A: Given, Initially Mass of Oxygen gas (m1) = 370 g Pressure of a gas ( P1) = 30 atm Temperature of a…

Q: Solid ammonium chloride, NHCl, is formed by the reaction of gaseous ammonia, NH3, and hydrogen…

A: Here we are required to find the mass of ammonium chloride produced from the synthesis reaction

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

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Q: Which of the following gases will move the fastest at 25.0 °C? a. SF6 b. He c. none, they all move…

A: None of the gases have same speed. All have different velocities which depend on the temperature and…

Q: Suppose the temperature of a sample of methane gas is lowered from 22.0 °C to 7.0 °C, and at the…

A: The expression of ideal gas equation is shown below: PV = nRT Where; P = pressure V = volume n=…

Q: Consider two vessels connected with each other with a valve. The first vessel contains 275 mL of F2…

A: Given that: Volume of F2 = 275ml = 0.275L T = 273K P = 1.13 atm Using ideal gas equation to…

Q: 9. Urea is produced from the reaction of ammonia with carbon dioxide according to the following…

A: Given information: Pressure of CO2 =  12.0 atm Pressure of ammonia = 23.0 atm Volume = 25.0 L…

Q: A closed 200mL flask has a pressure of 5.5atms, a temperature of 2.9oC and 8.2 particles of gas. If…

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

Q: In the lab, students generated and collected oxygen gas according to the following equation: 2 H2O2…

A: 2 H2O2 (aq) 2 H2O (l) + O2 (g)   a) given weight of H2O2, Wh2o2 = 50g molecu;ar weight of H2O2, Mwt…

Q: have a balloon that can hold 125,000 mL of air. If i blow up this balloon with 3 moles of oxygen gas…

A: P V = n R T  Where  P = pressure of the gas = 1 atm  V = volume of gas = volume of balloon     =…

Q: If a 20.0 L cylinder at 19°C is charged with 5.00 g each of sulfur dioxide (SO2) and oxygen gas,…

A: In this problem first we have to calculate the number of mole of SO2 and O2 in 5.0 g  Then by using…

Q: How many grams of phosphorus (P4) are needed to completely consume 39.8 L of chlorine gas according…

A: Given  P4 (s) + 6Cl2 (g ) -> 4PCl3  volume of chlorine gas = 39.8 L  Temperature = 25°C Pressure…

Q: Given the equation: 2KCIO3(s)--->2KCI(s)+3O2 A 5.00-g sample of KClO3 is decomposed and the oxygen…

A: Using a balanced Chemical reaction and stoichiometric coefficients involved in it, amount of…

Q: The air bags in cars inflate through the explosive decomposition of a solid to produce a gas. The…

A: The decomposition reaction of sodium azide (NaN3) is given as 2 NaN3 (s) → 2 Na (s) + 3 N2 (g)…

Q: 1. A 3.25 gram sample of solid calcium carbide (CaC2) reacts with water to produce acetylene gas…

A: The combined relation between gas laws is known as the ideal gas law or the gas equation. The…

Q: How many liters of Iodine gas will be made at 1.05atm and 37°C when 3.5g of fluorine reacts with…

A: In the question given information is as follows: Mass of fluorine reacting = 3.5 g  Mass of…

Q: 8.112 In another laparoscopic surgery, helium is used to inflatete abdomen to separate the internal…

A: Given : Pressure = 15mm = 15/760 atm  Volume= 3.1L Temperature = 28℃ = 273.15+28= 301.15K

Q: 9. Which of the following gasses moves the fastest at 25.0°C? Select one: a. sulfur dioxide b.…

A: The given gasses are as follows --- a) Sulfur dioxide (SO2): Molar mass = 64.066 g/mol b) Dinitrogen…

Q: A metal can with a pressure of 116 kPa (kiloPascals) contains 24.9 g Neon (Ne) gas at a temperature…

A: According to Ideal gas equation PV= nRT P= pressure  (1atm = 101.3 kPa) V = Volume  n = moles R =…

Q: Butane, C4H10, is an easily liquefied gaseous fuel. Calculate the density of butane gas at 0.957 atm…

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.