High-pressure liquid chromatography (HPLC) is a method used in chemistry and biochemistry to purify chemical substances. The pressures used in this procedure range from around 500 kilopascals (500,000 PaPa) to about 60,000 kPakPa (60,000,000 PaPa). It is often convenient to know the pressure in torr. If an HPLC procedure is running at a pressure of 2.01×108 PaPa , what is its running pressure in torr?

Q: A student performed the experiment described in this module, using 6.00 mL of a 3% H2O2 solution…

A: Given, P1 = 30.30 in. Hg x (2.54 cm/1 in) x (10 torr Hg/1 cm Hg) = 769.62 torr Hg V1 = 65.40 mL =…

Q: If the partial pressure of N2 is 3.50 x 105 Pa and the partial pressure of Ne is 3.75 x 105 Pa in a…

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Q: At what temperature will 12.00g of Cl2 exert a pressure of 754.4 kPa at a volume of 752 mL?

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Q: A student performed the experiment described in this module, using 6.00 mL of a 3% H2O2 solution…

A: The decomposition of hydrogen peroxide can be represented as follows: 2H2O2  →  2H2O  +  O2

Q: A sealed flask with an internal volume of 2.0 dm3 contains 6.0 g of methane. If the pressure inside…

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Q: 3) Given that an adult man who has fully exhaled during normal breathing has a thoracic volume of…

A: Boyle's law:  According to Boyle’s law, the absolute pressure exerted by a given mass of an ideal…

Q: High-pressure liquid chromatography (HPLC) is a method used in chemistry and biochemistry to purify…

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Q: The compound 1-iodododecane is a nonvolatile liquid with a density of 1.20 g/mL. The density of…

A: The density of mercury and 1-iodododecane is 13.6 g/mL and 1.20 g/mL, respectively. The atmospheric…

Q: On a single plot, qualitatively sketch the distribution ofmolecular speeds for (a) Kr(g) at -50 °C,…

A: The molecules of gases are in random motion. The speed of the molecules is affected by the…

Q: Calculate (1) partial pressures, (2) mole fractions, (3) (4) densities of the gaseous components in…

A: We have 0.2 kg of H2 The molar mass of H2 is 2 gm/mole Hence, 0.2 kg of H2 = 1 mole×200 g2 g=100…

Q: A sample of nitrogen gas has a volume of 478 cm³ and a pressure of 104.1 kPa. What volume would the…

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Q: Propene, the second most important starting product in the petrochemical industry after ethylene, is…

A: Let 100% by mass be equivalent to 100 g. Thus, 85.7% of C = 85.7 g and 14.3% of H = 14.3 g Calculate…

Q: 5. A vessel of volume 22.4 dm3 contains 2.0 mol H2 and 1.0 mol N2 at 273.15 K. Calculate (a) the…

A: Given,  Volume = V = 22.4 dm3  Moles of H2 = nH2 = 2.0 mole  Moles of N2 = nN2 = 1.0 mole…

Q: You are working in an oil refinery. Where you use hydrocarbon gases like methane (CHA), ethane (CH),…

A: Partial Pressure is defined as if a container filled with more than one gas, each gas exerts…

Q: Why must the diffusion of gases into or within liquids be presented in terms of partial pressures…

A: Diffusion means two or more particles are intermixed with each other. Example: The gases particles…

Q: A student performed the experiment described in this module, using 6.00 mL of a 3% H2O2 solution…

A: (10). Volume of oxygen (O2) collected by student = 65.40 ml = 0.0654 litre Temperature, T= 22oC =…

Q: A mixture of neon and argon gases exerts a total pressure of 690.4 kPa.If the partial pressure of…

A: Given:Total pressure of gas mixture, Pt=690.4kPaPressure of Neon gas, PNe = 3214.8mm HgTo…

Q: A 190 mL sample of neon has its pressure changed from 75kPa to 160 kPa. What is its new volume?

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Q: 3. At what temperature in kelvin is the root mean square speed of helium atoms (atomic weight =…

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Q: An aerosol can originally at 200.0 kPa and 20.0°C was heated to 300.0°C. What is the pressure in the…

A: Given: Initial pressure(P1)=200.0 kPaInitial temperature(T1)=20.0oCFinal temperature(T2)=300.0oC To…

Q: Elemental analysis is performed on an organic liquid with a fishy odor. Vaporization of 255.0 mg of…

A: Here we can apply the gas equation to find the moles of organic compound used. Moles n = PV / RT…

Q: 74. Concentrated hydrogen peroxide solutions are explosively decomposed by traces of transition…

A: The given reaction is: 2H2O(aq)→2H2O(l)+O2(g) From this equation, it is clear that 2mol. of hydrogen…

Q: If a sample of freon-12 gas occupies 350 cm3 at a pressure of 150 psi and a temperature of 15°C,…

A: Given : Initial pressure of gas = 150 psi Initial volume of gas = 350 cm3  Initial temperature = 15…

Q: A canister of oxygen gas is compressed from 68.0 mL at standard pressure to 19.0 mL. What is the new…

A: apply Boyel law for the given question  Boyel law is ,at constant temperature , PV = constant  or…

Q: A breathing mixture used by deep-sea divers contains helium, oxygen, and carbon dioxide. What is the…

A: Dalton's law: Dalton's law of partial pressures states that in a mixture of non-reacting gases, the…

Q: A hydrocarbon mixture known to contain methane, ethene and butane only has a volume of 6.00L, a…

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Q: Acetylene is prepared from the following reaction CaC2 + 2H2O -> CHCH + Ca(OH)2   10.0 grams of…

A: Balanced chemical equation: CaC2 + 2H2O -> CHCH + Ca(OH)2 Number of moles of acetylene = number…

Q: On a single plot, qualitatively sketch the distribution ofmolecular speeds for (a) Kr(g) at -50 °C,…

A: The average velocity and root mean square velocity of gas molecules for a gas of molar mass M at…

Q: A 190 mL sample of neon has its pressure changed from 75 kPa to 160 kPa. What is its new volume?

A: Given data, V1=190 mLP1=75 kPaP2=160kPa To calculate the new volume.

Q: What is the molar density of Sam Smiths cologne at STP if their cologne is made up of a compound…

A: The volume occupied by any gas at STP condition will be 22.4 L for each mole of gas. The density is…

Q: A sample of hydrogen gas was found to have a pressure of 125 kPa when the temperature was 23 °C.…

A: It is given that a sample of hydrogen gas has a pressure of 125 kPa when the temperature is 23°C.

Q: The compound 1-iodododecane is a nonvolatile liquid with a density of 1.20g/mL. The density of…

A: This question is solved by using the simple concept of formula of pressure in terms of height and…

Q: Elemental analysis is performed on an organic liquid with a fishy odor. Vaporization of 275.0 mg of…

A: Given:Mass of compound = 275.0 mg = 275.0 ×10-3 g.Volume of Solution = 110 mL = 110×10-3…

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

A: Diffusion process occur when a gas molecules disperse throughout the container. Effusion process…

Q: What pressure, in atmospheres, is exerted on the body of a diver if she is 39 ft below the surface…

A: Pressure exerted by water is calculated as follows,

Q: A student performed the experiment described in this module, using 7.00 mL of a 1.8% H2O2 solution…

A: For this problem we need to convert the temperature of water from oC to Kelvin.

Q: Nitrogen oxide can be generated on a laboratory scale by the reaction of dilute sulfuric acid with…

A: The number of moles (n) of a substance is determined as the ratio of the mass (m) to its molar mass…

Q: 3. An airtight container with a volume of 4.25 x 10' L, an internal pressure of 1.00 atm, and an…

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Q: Neon effuses at a rate of 0.325 moles per second at certain volume, pressure, and temperature. How…

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Q: Nitric oxide is an important neurotransmitter. To prepare to study its effect, a sample was…

A: We have to calculate the moles of neurotransmitter.

Q: Boyle’s law for confined gases states that if the temperature is constant, pv = c, where p is…

A: according to boyl's law at constant temperature pressure is inversely proportional to volume.

Q: Chlorine can be prepared in the laboratory by the reaction of manganese dioxide with hydrochloric…

A: Given Volume of Cl2 = 285 ml Temperature = 25°C Pressure = 95 kPa

Q: A student performed the experiment described in this module, using 5.00 mL of a 3.2% H2O2 solution…

A: We are given that the temperature of the water is 18°C, in the experiment which is formed by the…

Q: The density of liquid CO2 at room temperature is 0.80 g/mL.  How large a cartridge of liquid CO2…

A: Given that: Density of Liquid CO2 = 0.80g/mL Volume of life raft = 500L Temperature = 21°C = 294K…

Q: The chlorination of methane occurs in a number of steps that results in the formation of…

A: Hello. Since your question has multiple sub-parts, we will solve the first three sub-parts for you.…

Q: A 1.50-liter sample has a pressure of 138 kPa at 12°C. What temperature would this sample be if it…

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Q: The pressure 95.7 m under water is 339 kPa. What is this pressure in torr?

A: The given pressure P=339 kPa1Kilopascal is 7.5006 TorrKilopascal value is converted into Torr

Q: The pressure 25.0 meters under water is 347 kPa. what is this pressure in mmHg?

A: Given that: Pressure = 347kPa We know that: 1atm = 760mmhg

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.