Cavendish prepared hydrogen in 1766 by the novel method of passing steam through a red-hot gun barrel:4H2 O(g) + 3Fe(s) ⟶ Fe3 O4(s) + 4H2(g)(a) Outline the steps necessary to answer the following question: What volume of H2 at a pressure of 745 torr and a temperature of 20 °C can be prepared from the reaction of 15.O g of H2O?(b) Answer the question.

Q: Joseph Priestley first prepared pure oxygen by heating mercuric oxide, HgO:2HgO(s) ⟶ 2Hg(l) +…

A: a.

Q: P1A.8 A vessel of volume 22.4 dm' contains 2.0 mol H,(g) and 1.0 mol N,(g) at 273.15 K initially.…

A: Partial pressure:  It is the individual pressure of a gas when a mixture of gases is present in a…

Q: Iodomethane is a common liquid used in the laboratory. It vaporizes readily. If the pressure of…

A: Concept: Ideal Gas Equation P*V = n* R*T where n = moles = Mass (m)/ Molar Mass (M) P*V = (m/M) *…

Q: Sulfur dioxide is an intermediate in the preparation of sulfuric acid. What volume of SO2 at 343 °C…

A: The balanced chemical equation for the reaction is: Thus, 1 mole of S gives 1 mole of SO2.

Q: Chlorofluorocarbons (CFC's) are gases that were formerly widely used in aerosols and refrigerators…

A: Given: Mass of CFC = 2.50 g. Temperature = 22 oC Pressure = 1.02 atm. And volume of flask = 500 mL =…

Q: A sample of phosphorus that weighs 3.243 × 10−2 g exerts a pressure of 31.89 kPa in a 56.0-mL bulb…

A:

Q: Chlorofluorocarbons (CFC's) are gases that were formerly widely used in acrosols and refrigerators…

A: Given: Mass of CFC = 2.50 g. Temperature = 22 oC Pressure = 1.02 atm. And volume of flask = 500 mL =…

Q: A mixture of 3.86 g of CCl4 and 1.92 g of C2H4 at 450 ºC exerts how many atmospheres of pressure…

A: Since PV = nRT  where P = pressure  V = volume of chamber in L = 30/1000 = 0.03 L n = moles  R =…

Q: What volume will 12.0 g of oxygen gas (O2) occupy at 25oC and a pressure of 52.7 kPa? What is the…

A:

Q: (ii) What is the partial pressure of oxygen and nitrogen (in kPa) if they are present at 6.42 mol/m3…

A:

Q: What is the root mean square speed (in m/s) of nitrogen at 26.3oC?

A: Given, Molecule  = nitrogen  (N2) Temperature = 26.3 °C =(26.3+273)K = 299.3 K

Q: What is the pressure in atmospheres of 2.50 L of 1.5 moles of hydrogen at 230.0 K?

A: Given data,   Volume of hydrogen (V) = 2.50 L   Number of moles of hydrogen (n) = 1.5 moles…

Q: What is the temperature of 0.300 mole of neon in a 2.00 L vessel at 4.68 atm?

A: We will use Idea Gas Equation to solve this problem PV = nRT   where. P = Pressure in atm V = Volume…

Q: A compressed gas cylinder of CO2 gas has a volume of 23.5 L at room temperature (25C) and a pressure…

A: Given, volume of CO2 = 23.5 L Temperature  = 25°C = (273+25) = 298 K Pressure = 650 KPa  = 650/101 =…

Q: What volume is occupied by 0.640 mol of CO2 at 273.5 K and 701 mmHg ?

A: We have to calculate the volume occupied by gas.

Q: A sample of neon of mass 425 mg occupies 6.00 dm3 at 77 K. What pressure does it exert?

A: Ideal gas equation:                                                      PV = nRT where, P=…

Q: What is the pressure, in pascals, exerted by 1263 g CO(g) when confined at -22 ∘C to a cylindrical…

A: The radius of the cylindrical tank is 15 cm or 0.15 m. The volume of the cylindrical tank can be…

Q: What is the pressure exerted by 1.54 g Xe gas at 17.0 °C in a 350-mL flask?

A:

Q: What pressure is exerted by 998.1 g of CH4CH4 in a 0.600 L steel container at 135.2 K?

A: According to Ideal gas equation PV=nRT P=pressure V= volume R=gas constant = 0.0821Latm/mol.K T…

Q: What pressure is exerted by a mixture of 2.40 g of H2 and 10.00 gof Na at 273°C ina 10.0L container?

A:

Q: What volume in liters of fluorine gas is needed to form 999 L of sulfur hexafluoride gas if the…

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

Q: At what temperature would 2.10 mol N₂ exert 126.65 kPa of pressure in a 25.0 L tank?

A:

Q: Cavendish prepared hydrogen in 1766 by the novel method of passing steam through a red-hot gun…

A: The given balanced equation is 4 H2O (g) + 3 Fe (s) ⟶ Fe3O4 (s) + 4 H2 (g) Now, convert the mass of…

Q: It took 6.3 minutes for 25 mL of argon to reach the end of an effusion tube with a porous barrier.…

A: This question is based on Graham's law of effusion, which states that the lighter molecules will…

Q: What is the pressure of 2.01 g of nitrogen gas confined to a volume of 0.205 L at 36 ∘C?

A: Given, Mass of nitrogen = 2.01g Volume = 0.205L Temperature  = 36 degree Celsius.

Q: What pressure is exerted by a sample of nitrogen gas of mass 3.055 g in a container of volume 3.00…

A: Number of moles of the substance is equal to the ratio of mass to the molar mass of the substance.…

Q: Producing hydrogen gas is becoming a very important technical and economic concern for food…

A:

Q: What volume must a balloon have to hold 6.20 kg of H2 for an ascent from sea level to an elevation…

A:

Q: What is the pressure of 1.51 g of nitrogen gas confined to a volume of 0.105 LL at 30 ∘C?

A:

Q: What pressure is exerted by 0.75 moles of a gas at 25°C in a container with a volume of 1.5 L?

A:

Q: A chemist is investigating the conversion of atmospheric nitrogen to usable form by the bacteria…

A: Given information,    1.25 g of nitrogen gas in a flask of volume 250 mL at 20 °C.         moles of…

Q: 3. A newly launched whipped cream product used nitrous oxide (N20) as a propellant in their whipped…

A: P1 = 60.75 kPa = 60750 Pa P2 = ? T1 = 313.15 K  T2 = 94.43 K  1 kPa = 7.50062 mmHg

Q: Could 131 g of xenon gas in a vessel of volume 1.0 dm3 exert a pressure of 20 atm at 25 °C if it…

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

Q: 3.19K HI B. What mass of aluminum metal must be dissolved in excess hydroiodic acid to pro L of…

A:

Q: On our campus, there are approximately 30.000 students who use 2.5 x 10° kJ of energy per day.…

A:

Q: A bottle contains 1.0 mol He(g) and a second bottle contains 1.0 mol Ar(g) at the same temperature.…

A: The root mean square velocity is the square root of mean of squares of velocities of the individual…

Q: At what the pressure, in atmospheres, that O2 gas at 75°C has a density of 2.00 g/L?

A: According to ideal gas law, PV = nRT where P = pressure V = volume n = moles  R = gas constant =…

Q: what pressure (in atm) will 0.44 moles of CO2 exert in a 2.6 L container at 25 degrees C?

A: We can use ideal gas equation to calculate the pressure of each gas. The ideal gas equation is,…

Q: At what temperature would 2.10 mol N2 exert 126.65 kPa of pressure in a 25.0 L tank? * 90.5 K 45.5 K…

A:

Q: How much pressure in kPa does 4.00 moles of nitrogen gas at 30.0°C exert on a container that holds…

A:

Q: Magnesium  metal reacts with molecular  chlorine  gas to form  magnesium   chloride . A closed…

A: Ideal gas equation is the combination of Boyle's law, Charles' law, Avogadro's law and is given by,…

Q: At what temperature will 5.00 g of Cl2 exert pressure of 1.184 atm at a volume of 750.0 mL?

A: The question is based on ideal gas equation. We have to calculate the  temperature at which chlorine…

Q: What would be the pressure of H2 (g) formed by the reaction of 89 grams of Al performed in a 10L…

A: According to ideal gas equation

Q: In one of his most critical studies into the nature of combus-tion, Lavoisier heated mercury(II)…

A: Given information,    40.0 g of mercury(II) oxide is heated in a 502-mL vessel and 20.0% (by mass)…

Q: In the fermentation of glucose (wine making), a volume of 780 mL carbon dioxide gas was produced at…

A: Given:V1=780mL=0.78L                             V2=?T1=273.15+37K=310.15K…

Q: What volume in liters of fluorine gas is needed to form 475 L of sulfur hexafluoride gas if the…

A: Given;

Q: A hyperbaric chamber has a volume of 1450 LL. How many kilograms of O2O2 gas are needed to give an…

A:

Q: What pressure (in atm) will 0.44 moles of CO2 exert in a 2.6 L container at 25°C?

A: Ideal gas equation is: PV = nRT…

Q: The rare mineral nesquehonite contains MgCO3 together with water ofhydration. A sample containing…

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.