How much heat (in kJ) is required to evaporate 2.34 mol of acetone at the boiling point?

Q: Arrange the following according to increasing boiling point.

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Q: How much heat is required to melt 23.9 g of solid diethylether (at its melting point)?

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Q: Although ethanol has a higher molar mass than water and exhibits the same IMF as water, ethanol…

A: Ethanol shows a larger drop in the temperature during evaporation than water.

Q: Identify the compound that ABLE to form hydrogen bonding with each other? но

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Q: ) Which will evaporate more rapidly, 25 mL of liquid ammonia (NH), in a beaker or 25 mL of e gas,…

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Q: CH4, CO2, He, Br2 rank them in the order of increasing strength of dispersion forces.

A: The intermolecular forces between non polar atoms or molecules are those forces which cause them to…

Q: Why water expand in the form of ice?

A: As we know water is generally present in the liquid form. But it also exist in steam form at higher…

Q: If water has the highest latent heat of vaporization, why does a drop of alcohol make my hand feel…

A: latent heat of vaporization is the heat required to convert the one mole of liquid at its boiling…

Q: Using the concepts of vapor pressure and temperature, what happens to your car tire on a very hot…

A: According to the Gay Lussac Law, at constant volume and no. of moles, the pressure of the gas is α…

Q: How much energy is released when 2.55kg of diethyl ether freezes?

A: We have to find the amount of energy released when 2.55kg of diethyl ether freezes.

Q: Why does spilled gasoline evaporate more rapidly on a hot day than on a cold day?

A: The reason behind given fact is explained below, Liquid state: A physical state of matter where…

Q: What is the vapor pressure of liquid water at 100 oC?

A: At 100 oC , the vapor pressure of water is 1 atm (atmosphere). The various ways 1atm is expressed in…

Q: Highest BP: Si(CH3)4  or NF3 e) Highest vapor pressure: CH3NHCH3 or BCl3

A: When the vapour pressure of a substance is equal to  atmospheric pressure the substance starts to…

Q: 2. What is the relationship between vapor pressure and boiling point?

A: Vapor pressure is the pressure experted by the vapor with solid or liquid phase. The vapor pressure…

Q: What are the methods for determining the degree of melting

A: The melting point of any substance is defined as it is the particular temperature at which the…

Q: Explain why the temperature remains constant during the process of melting and condensation.

A: The temperature remains constant during the process of melting because the physical state of the…

Q: NH3, NHF2, NF3 1) lewis structure 2) dominate intermolecular force? 3) which has strongest…

A: “Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for…

Q: Rank the following compounds in order of decreasing vapor pressure.

A: Higher intermolecular forces results in a low vapor pressure of the compound

Q: Of all the reasons listed, which one does NOT explain why lakes do not evaporate when it is hot…

A: Evaporation is the process by which water changes its state from liquid to gas . It is the rimary…

Q: Why is hexane more volatile than water? Explain by mentioning the differences in their structure and…

A: Substances with strong intermolecular forces have lower vapor pressures and are less volatile, while…

Q: What is the vapor pressure of water if the total vapor pressure is 1.5 atm and the pressure of…

A: Total vapor pressure Pvap = 1.5 atm Pressure of oxygen is Po2 = 0.2 atm Dalton's Law of Partial…

Q: does London dispersion forces decrease as the number of electrons increases.?

A: London dispersion forces are the forces of attraction that are temporary and is one of the weakest…

Q: How many joules of energy must be removed from 156 g of water at 17.3 °C to form ice at 0 °C?

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Q: True or false london dispersion forces decrease as the number of electrons increases?

A: London dispersion force is directly proportional to the number of electron

Q: Which would exhibit stronger intermolecular attractive for

A: Types of intermolecular forces (IMFs) : 1. London-dispersion forces : These forces present between…

Q: 4. How much heat is needed to evaporate 2g of ethyl alcohol?

A: Given,  The mass of ethyl alcohol = 2 g.  The heat needed in the transformation is:

Q: If a molecule can hydrogen bond, does it guarantee that it will have a higher boiling point than a…

A: Molecules with hydrogen bonds will always have higher boiling points than similarly sized molecule…

Q: Define the boiling point? What are the factors affecting it?

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Q: Can carbon dioxide be liquefied at room temperature ( 20 °C )? If so, how? If not, why not?

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Q: what happens to the boiling point of water due to the presence of hydrogen bonds and why does this…

A: In the case of water, hydrogen bonding, which is a special case of polar dipole forces exerts a very…

Q: How much energy is released when 65.8 g of water freezes?

A: At constant temperature when 1 kilogram of a solid is converted into liquid then heat released is…

Q: to

A: Ethanol is polar molecules so it's have dipole-dipole interaction ( called Hydrogen bonding ) but…

Q: b) Draw a diagram below to showing the strongest intermolecular forces present between molecules of…

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Q: How many calories of heat are needed to vaporize 500g of water at 100 ᵒ C?

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Q: The high boiling point of water (100 °C) is due to between water molecules.

A: Types of inteermolecular forces : Dipole-Dipole interaction : It exist between molecules having a…

Q: Melting Boiling Point Point Molar Density (g/mL) Chemical Notes Mass (g/mol) (°C) (°C) Acetone CAS:…

A: Answer:- Rest of this chart is filling -

Q: Discuss elevation of boiling point in detail

A: Boiling point: It is the physical parameter that is, the temperature at which the liquid substances…

Q: Compound y has a heat of fusion of 361 J/g. The solid form has a specific heat capacity of 0.353…

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Q: indicate the stronger attractive force. water-plastic or water-glass. explain

A: Since the molecules in glass (chain of SiO2) are much much polar ( even more than the water…

Q: True or false: (a) CBr4 is more volatile than CCl4. (b) CBr4has a higher boiling point than CCl4.…

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Q: What is the difference between dipole–dipole interactions and London dispersion forces?

A: Intermolecular force of attraction that holds the different molecules of a substance together is…

Q: The heat of fusion for naphthalene is 0.148 kJ/g. Calculate the heat energy in joules required to…

A: Given: Heat of fusion for naphthalene = 0.148 KJ/g Mass of naphthalene = 43.25 g

Q: Compounds like CCl2F2 are known as chlorofluorocarbons, or CFCs. These compounds were once widely…

A: Amount of heat released when 201g of water freezes:

Q: How many joules of energy must be removed from 177 g of water at 16.3 °C to form ice at 0 °C?

A: The answer is given as follows

Q: What is Boiling Point Elevation?

A: Boiling point is the temperature at which the vapor pressure of the liquid becomes equal to the…

Q: How much energy is released when 65.8g of water freezes

A: First convert the given grams to moles.

Q: Which statement is true? Statement 1: For compounds of approximately the same molecular weight, the…

A: Melting point increases as the intermolecular force increases . Higher the symmetry in a molecule…

Q: Which evaporates more quickly: 55 mL of water (H2O) in a beaker or 55 mL of acetone [(CH3)2CO] in an…

A: Any liquid starts to boil when its vapor pressure equals the atmospheric pressure. Imagine an…