The Molecular Weight of an unknown liquid is determined using the Dumas Method. The following data has been obtained: Atmospheric Pressure = 754.6 Torr Volume of the Flask = 213 mL Temp. of Water Bath = 100 °C Mass of Re-Condensed Liquid = 0.582 g What is the Molecular Weight of the liquid?

Q: In a 6.00 L pressure cooker, water is brought to a boil. If the final temperature is 115 °C at 3.85…

A: Volume=6.00L Temperature= 115°C=(115+273)K=388K Pressure=3.85 bar R=0.08314L-bar/mol-K

Q: Consider a sample with Vsolid = 0.0180 L/mol and Vliquid = 0.0196 L/mol and Hfus = 6.01 kJ/mol.…

A: Given that, for a sample  Vsolid = 0.0180 L/mol. Vliquid = 0.0196 L/mol. Hfus = 6.01 kJ/mol = 6010…

Q: The following information is given for silver at 1 atm: boiling point = 2212 °C melting point = 961…

A: Answer: In freezing process matter has been converted form its liquid state to solid state by the…

Q: Graphically show the variation of viscosity (h) of a liquid with temperature (T)

A: Viscosity (h) of a liquid decreases with increase in the temperature (T).

Q: Dalton’s Law:Dilute hydrochloric ácidos added to a 0.500 g sample of an alloy containing zinc and…

A: Pressure of hydrogen gas collected can be determined using Dalton’s law.

Q: For a given liquid a plot of the lnP versus 1/T gives a straight line with a slope of -4606 K. What…

A:

Q: If air contains 21% 02, what is the partial pressure of O2 in a cylinder of compressed air at 181…

A: The pressure of the compressed air in the cylinder is = 181 atm The percent of oxygen in the air is…

Q: Use this equation to calculate the percentage of nitrogen in the sample described below. A sample of…

A: Given, % N = 0.04489×V(P-P°H2O)W(273+tc)where,V= volume of N2collected over water tc=temperature P=…

Q: Calculate the amount of heat needed to melt 47.4 g of solid hexane (CH₁4) and bring it to a…

A:

Q: Only one of these compounds is a liquid at room temperature. The remaining are all gases. Which…

A: Boiling point is defined as the temperature at which a liquid starts boiling and becomes vapours.…

Q: The following procedure provides a crude method of determining the molar mass of a volatile liquid.…

A: Information of question

Q: Given the known heat of vaporization (delta H vap) of water is 44.01 kJ/mole, find the percent error…

A: The experimental value given = 44.42 KJ/mol  and since the real value is = 44.01 KJ/mol hence the…

Q: The following procedure provides a crude method of determining the molar mass of a volatile liquid.…

A: Answer:Here:

Q: mass m = 0.056 kg of benzene vapor at its boiling point of 80.1 °C is to be condensed by mixing the…

A:

Q: Calculate the energy needed to melt 3.0g

A: The sum of the energy needed to melt the 0 °C ice into 0 °C water, heat the water to 100 °C, turn…

Q: Particulate Electrical Forces Unit Test Water exhibits hydrogen bonding. Which option describes what…

A: Water exhibits hydrogen bonding. The option, which describes about water has to be identified.

Q: The molar heats of formation of liquid and gas phase water are given by: kJ ΔΗ, = -285.8 mol AH =…

A: The enthalpy change is a state function and the Hess law states that the change of enthalpy in a…

Q: Why is the liquid-gas phase boundary in a single phase diagram component end at the critical point?

A: Since you have asked multiple questions, we will solve first one for you. For remaining questions,…

Q: Liquid X is known to have a lower surface tension and lower viscosity than Liquid Y. Use these facts…

A: Liquid X has lower surface tension and lower viscosity than liquid Y.Surface tension X <…

Q: In a 6.00 L pressure cooker, water is brought to a boil. If the final temperature is 115 °C at 3.15…

A: P V = n R T  Where  P = 3.15 bar  V = 6 L  n = moles = ?  R = 0.08314 L bar /mol k  T = 115° C = 115…

Q: P 1.0 atm F A B T H I

A: INTRODUCTION: It is a pressure -temperature phase diagram of a single compound,which indicates the…

Q: Using Raoult's Law to calculate the vapor pressure of a... At a certain temperature the vapor…

A: According to Raoult's law , the vapor pressure of a component in a solution is proportional to its…

Q: If 0.80 g of the vapor of the unkknown liquid occupied 280ml at 100 degrees celcius and 750 mm Hg,…

A: The number of moles of the liquid can be calculated from ideal gas equation.

Q: Liquid A is known to have a higher viscosity and higher vapor pressure than Liquid B. Use these…

A: The objective of this question is to predict each experiment's result in the given table.

Q: what is the Regression equation (displayed on graph):       What units are associated with the…

A:

Q: Which of the following substances would have the highest vapor pressure at 298 K? A) propanol (b.p.…

A: Vapour pressure of any substance is the partial pressure of the vapours present in equilibrium with…

Q: Take the solution 10.12g, add 10mL of deionized water, and cool the solution to 0 degrees Celsius.…

A: CuSO4. 5H2O is the hydrated form of CuSO4. There are 5 water molecules in CuSO4. 5H2O.

Q: In a 6.00 L pressure cooker, water is brought to a boil. If the final temperature is 115 °C at 4.25…

A: Given  Volume ( V ) = 6 L  Temperature ( T )   = 115 ℃                                = ( 115 + 273…

Q: 54. How much heat is emitted when 65.6 g of isopropyl alcohol condenses at 25 °C? I

A: Given data:Mass of isopropyl alcohol = 65.6gMolecular weight of isopropyl alcohol = 60 g/molHeat of…

Q: The following information is given for silicon at 1 atm: Th=2355.00°C Tm 1410.00°C Specific heat…

A: Amount of heat needed can be calculated by summation of heat needed for the individual conversions.

Q: None

A: Step 1:   Step 2: Step 3: Step 4:

Kinetic-Theory of Gases

Kinetic theory of gases is the model or method which was developed in the 19th century by Maxwell and Boltzmann. This is possible as the interatomic force which is of short-range forces that are important for solids and liquids can be neglected for gases. This theory or gas law gives a molecular interpretation of the pressure and temperature of a gas and is consistent with gas laws and Avogadro’s hypothesis. This theory is very helpful to correctly explain the specific heat capacities of many gases, kinetic energy and it also explains the transport qualities such as viscosity, thermal conductivity, and diffusion with molecular parameters. As stated in the kinetic-molecular theory, the temperature of a substance or gas particle is related to the average kinetic energy of the particles of that substance. When a substance is heated, some of the absorbed energy is stored within the particles, while some of the energy increases the motion of the particles, called average kinetic energy.