The concentration of O2 in water required to support aerobic aquatic life is about 4 .0 mg dm-3 . What is the minimum partial pressure of oxygen in the atmosphere that can achieve this concentration?

Q: 5. Arrange the following compounds in order of decreasing volatility: acetone, methanol,…

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Q: 20.7 cm3 of a pure vapour, at 1.136 atm, and 98.3 °C has a mass of 0.0603 g. Calculate the molar…

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Q: Use the van 't Hoff equation to derive an expression for the slope of a plot of pKa against…

A: SOLUTION: Step 1:   The Van’t Hoff equation can be written as follows:

Q: 17.6 cm3 of a pure vapour, at 1.153 atm, and 98.5 °C has a mass of 0.0520 g. Calculate the molar…

A: Given :-  pressure = 1.153 atm  Volume = 17.6 cm3  Temperature = 98.5°C  mass = 0.0520 g  To…

Q: What is the boiling point of bromine when the external pressure is 75 kPa?Explain the significance…

A: The triple point of a substance is the temperature and pressure at which the three phases (gas,…

Q: 4. A vessel of volume 0.2 m3 contains Nitrogen at 1,013 KPa and 15° C. If 0.2 kg Nitrogen is now…

A: Ideal gas eqation is general gas equation which obeys gas laws under all conditions of temperature…

Q: In the following balanced reaction: 2Al(s) + 6HCl(aq) → 2AlCl3(s) + 3H2(g) 2.32 g of Al react…

A: Given: The temperature of H2 gas, (T) = 25oC = (25 + 273) = 298 K. The molar mass of Hydrogen atom =…

Q: In the following balanced reaction: 2Al(s) + 6HCl(aq) → 2AlCl3(s) + 3H2(g) 2.32 g of Al react with…

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Q: Consider a mixture of H2 (g) and I2 (g). Determine the ratio of the root-mean-square speed of H2(g)…

A: It is given that a reaction mixture contains H2 and I2 gas.

Q: Calculate the mole fraction of 15% (w/w) C6H12O6 ?

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Q: 19.7 cm3 of a pure vapour, at 1.092 atm, and 99.0 °C has a mass of 0.0466g. Calculate the molar mass…

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Q: Determine the mole fraction of C3H8O and H2O in a solution prepared by dissolving 15g of alcohol in…

A: Given-> Weight of alcohol (C3H8O) = 15 gm Weight of H2O = 100 gm

Q: Nickel carbonyl, Ni(CO)4, is one of the most toxic substancesknown. The present maximum allowable…

A: Since volume of the room = 12 ft x 20 ft x 9 ft = 2160 ft3  Since 1 ft3 = 28.3168 L Hence 2160 ft3 =…

Q: Explain the relationship between the partial pressure of agas and its rate of diffusion.

A: Rate of diffusion of gas means the speed of gas expand in the atmosphere at different condition of…

Q: Hydrogen peroxide is used by some water treatment systems to remove the disagreeable odor of…

A: The mole fraction shows the ratio of the number of moles of substance to the number of moles of…

Q: In what pressure range and in what temperature range must H2O exist in order for H2O1s2 to sublime…

A: The conversion of a solid directly into gas is called as sublimation. For example: Camphor and solid…

Q: Q2: Calculate the mole fraction of 15 % (w/w) C6H1206?

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Q: An effusion cell has a circular hole of diameter 2.50 mm. If the molar mass of the solid in the cell…

A: Given: Vapor pressure of gas = 0.835 Pa Temperature = 400 K Molar mass of solid = 260 g/mol. = 0.260…

Q: In the following balanced reaction: 2Al(s) + 6HCl(aq) → 2AlCl3(s) + 3H2(g) 2.32 g of Al react with…

A: Answer :-  V = 3.35 (L) Volume of hydrogen gas produced by the reaction of 2.32 g of aluminum metal…

Q: Calculate the collision frequency, z, and the collision density, ZAA in carbon monoxide, = 260 pm,…

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Q: A space vehicle of internal volume 3.0 m3 is struck by a meteor and a hole of radius 0.10 mm is…

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Q: Assuming that molecules are randomly distributed in a volume V at pressure P and temperature T with…

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Q: The best laboratory vacuum pump can generate a vacuum of about 1 nTorr. At 25°C and assuming that…

A: Given temperature. T = 25 oC + 273.15  = 298.15 K  Molar mass of N2 molecule, M = 28.013 g.mol-1 *…

Q: Nitrogen gas at 30°C is under a pressure of 650 of 296.8 J/kg-K. kPa. Assume a gas constant…

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Q: A space vehicle of internal volume 3.0 m3 is struck by a meteor and a hole of radius 0.10 mm is…

A: The time required to decrease the pressure is determined by the relation shown below.…

Q: Why the oscillating plots in the CO2 isotherm at temperature below Tc are considered to violate…

A: According to Boyle' law pressure is inversely proportional to the volume   this means as as pressure…

Q: What is the initial temperature, in °C, of a system that has the pressure decreased by 10 times…

A: We are given that System is initially at  Pressure=Pi Temperature=Ti Volume=Vi

Q: A determination of the density of a gas or vapour can provide a quick estimate of its molar mass.…

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

Q: 1. A vessel of volume 24.4 dm3 contains 1.0 mol H2 and 2.5 mol N2 at 298.15 K. Calculate (a) the…

A: 1) Mole fraction (χ) of a component is the ratio of mole of a component to the total moles of…

Q: An effusion cell has a circular hole of diameter 2.50 mm. If the molar mass of the solid in the cell…

A: In this question, we have given effusion cell which has a circular hole. We have to determine the…

Q: Q2: Calculate the mole fraction of 15 % (w/w) C6H12O6?

A: Welcome to bartleby !

Q: 23: For the gas reaction CO (g) + O₂ (g) → CO₂ (g) Calculate the maximum volume of the CO₂ gas at 28…

A: The balanced chemical equation is: CO(g) + 1/2 O2(g) → CO2(g)  In order to find the maximum volume…

Q: In the following balanced reaction: 2Al(s) + 6HCl(aq) → 2AlCl3(s) + 3H2(g) 2.32 g of Al react with…

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Q: Much to everyone"s surprise. nitrogen monoxide (NO) has been found to act as a neurotransmitter. To…

A: The combination of Boyle's law, Charles's law and Avogadro's law gives an equation which indicates…

Q: What mass of H2 gas can be collected over water from a 250-mL flask at a temperature of 25ºC and a…

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Q: Determine the molar density, in mol/dm3, of liquid butyraldehyde at 201.5 K.

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Q: Air contains 78% N2 and 21% O2 (mole percentages). Predict the equilibrium molar ratio of nitrogen…

A: Given,  Amount of N2 is = 78%. Amount of O2 is = 21%. N2(g) over water: kH = 8.57×104 atm O2(g) over…

Q: Explain why [1,3] sigmatropic migrations of hydrogen cannot occur under thermal conditions, but…

A: In a sigmatropic reaction “ one new sigma-bond is formed as another breaks.” In [1, 3] sigmatropic…

Q: Calculate the mole fractions of the molecules of a mixture that contains 56 g of benzene (C6H6) and…

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Q: With reference to Dalton’s law of partial pressure and the composition of air, explain why divers…

A: Dalton’s Law of Partial Pressures states that the pressure exerted by a mixture of gases is equal to…

Q: The partial pressure of water vapour at 30.0 °C is 4.25 kPa. What is the maximum mass of water that…

A: SOLUTION  Temperature = T = 30°C = (30+273)K=303K Pressure = P = 4.25 kPa = 4250 Pa Volume = V = 243…

Q: The mass density of a gaseous compound was found to be 1.23 kg m−3 at 330 K and 20 kPa. What is the…

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Q: What is the contribution to the total molar energy of (a) the kinetic energy, (b) the potential…

A: (a)

Q: Question attached

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Q: Why are there two separate H2O exchange rates observed for [Cu(H 2 O)6]^ 2+ in aqueous solution ?…

A: Two separate H2O exchange rates are due to Jahn Teller Distortions.