At room temperature, F2 and Cl2 are gases, Br2 is a liquid, and I2 is solid. This is because of what?

Q: Isopropyl alcohol is used in rubbing alcohol mixtures. alcohol on the skin caused by evaporation.…

A: Given : Mass of alcohol = 7.71 g And heat of vaporisation of alcohol = 42.1 KJ/mol. The molecular…

Q: Liquid butane is used in cigarette lighters. The boiling point of butane at 1 atm pressure is -1.0…

A: We would use Clausius Clapeyron equation to solve this question.

Q: The vapor pressure, P, of a certain liquid was measured at two different temperatures, T. The data…

A: Given data for vapor pressures at different temperatures are :

Q: 8) Arrange the liquids represented by the following molecular models in the expected order of…

A: This is the concept of intermolecular forces

Q: 1. What is the phase of water at 1 atmospheric pressure at 0°C?_ 218 D atm Liquid water 2. What is…

A: Phase diagram is a graphical representation of different phases of a substance at a particular…

Q: Compound H H H H H H Diagram H-C=C-C-C-H H-C-C-C-Ċ-S-H H. H H H Boiling Point 281 K 371 K エーO一エ I-

A:

Q: 7) Consider H;O and H;S. a. What two properties of a molecule are used to predict the intermolecular…

A: The intermolecular attractions occur between the molecules of hydrogen is bonded to an…

Q: DISCUSS THE FOLLOWING DIPOLE DIPOLE  FORCES,ION-DIPOLE FORCES, DISPERSION FORCES, THE HYDROGEN BOND

A: Since you have posted multiple questions, we are entitled to answer the first ony.

Q: Carbon disulfide, CS, has Pvap 100 mm Hg at -5.1 "C and a normal boiling point of 78.0 C. What is…

A:

Q: 8) Arrange the liquids represented by the following molecular models in the expected order of…

A: From given  Molecular models are arranged based on their increasing normal boiling point as follows

Q: The normal boiling point of mercury (Hg) is 356.7 °C. At what temperature (in °C) would the vapor…

A: Boiling point of Hg (Tb) = 356.7°C Vapor pressure of Hg (P2)= 0.4050atm ΔHvap = 58.51KJ/mol We have…

Q: 12.83 Consider the phase diagram shown for substance X. (a) What phase(s) is (are) present at point…

A: Given: A phase diagram:

Q: Suppose you have two colorless molecular liquids, one boilingat -84 °C, the other at 34 °C, and both…

A:

Q: 1.What are the properties of liquids?  How do intermolecular forces affect the properties of…

A: The properties of liquid are: Liquids are almost incompressible as molecules are pretty close to…

Q: The normal boiling point of unobtainium is 345 C.  a. Is the condensation of unobtainium endo or exo…

A: Since the boiling point of unobtainium is 345 °C.

Q: Which of the following pairs of substances has the higher vapor pressure at 298 K given first? A)…

A: pairs of substances has the higher vapor pressure at 298 K given is Option D A) H₂O, H₂Se B) CF₄,…

Q: Use the phase diagram for methane, CH4, shown in Figure11.30 to answer the following questions. (a)…

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

Q: 7) What are the four types of crystalline solids? Briefly explain each 8) Specify the predominant…

A:

Q: The normal boiling point of mercury (Hg) is 356.7 °C. At what temperature (in °C) would the vapor…

A:

Q: 7. How does the molar heat of vaporization of a substance compare to its molar heat of condensation?

A: Since you are posted with multiple question. As per the rule, I am answering the first question…

Q: At three different temperatures, T1, T2, and T3, the moleculesin a liquid crystal align in these…

A: (a) In the given figure, At temperature T1, represents the smectic A liquid crystalline phase. At…

Q: 11.8 At three different temperatures, Ti, T, and T, the molecules in a liquid crystal align in these…

A: The substance is in a liquid crystalline state at temperatures T1 and T2.  At T1 molecules are…

Q: What amount of heat (in kJ) is required to convert 15.2 g of an unknown liquid (MM = 67.44 g/mol) at…

A: We know that, q=mass×specific heat+temp. change

Q: A 4.7-L sealed bottle containing 0.33 g of liquid ethanol,C₂H₆O, is placed in a refrigerator and…

A:

Q: For bromine, AH°vap = 30.91 kJ/mol and A S°vap = 93.23 J/mol K at 25°C. What is the normal boiling…

A:

Q: (Q43) The normal boiling point of acetone is 56.1°C and its AHvap at its boiling point is 29.1…

A: Given: Normal boiling point of acetone = 56.1 oC ΔHvap of acetone = 29.1 KJ/mol = 29100 J/mol.…

Q: The vapor pressure, P, of a certain liquid was measured at two temperatures, T. The data is shown in…

A: The graph will be plotted between ln P (y-axis) v/s 1/T (x-axis). The points will be as followed:…

Q: 8) Arrange the liquids represented by the following molecular models in the expected order of…

A: Answer:- This question is answered by using the simple concept of boiling point which depends on the…

Q: 9. Consider the phase diagram a. What phase(s) is/are present at point A? P D. A В b. What phase(s)…

A: Since you have posted question with multiple subparts. So, as per guidelines we can answer three…

Q: 3. The vapor pressure of ethanol is 100 mmHg at 34.9°C. What is the vapor pressure at 63.5°C? (AHvap…

A:

Q: (Q43) The normal boiling point of acetone is 56.1°C and its AHvap at its boiling point is 29.1…

A: Given: Boiling point of acetone = 56.1oC  ∆Hvap = 29.1 kJ/mol To determine Vapour pressure (atm) at…

Q: 2) You are given the following data. Which of the liquids would you expect to have the highest vapor…

A: Boiling point :- The temperature at which the vapor pressure of anyliquid is equal to atmospheric…

Q: The vapor pressure, P, of a certain liquid was measured at two different temperatures, T. The data…

A: The plot of ln(P) Vs 1/T, to determine the enthalpy of vaporisation.

Q: 11.6 The molecules Ethyl methyl ether Propanol have the same molecular formula (C3H8O) but different…

A: Organic compounds are the compounds which are mainly composed C and H atoms. The branch of chemistry…

Q: Use the phase diagram for methane, CH4, shown in Figure11.30 to answer the following questions. (a)…

A: (a) At critical point two phase of a substance initially becomes indistinguishable. In the diagram…

Q: The vapor pressure of ethanol is 1.00 x 10“ mmHg at 34.90°C. What is its vapor pressure at 59.75°C?…

A: The given temperature in Kelvin is calculated as shown below. T1=34.90oC+273.15=308.05…

Q: At three different temperatures, T1, T2, and T3, the moleculesin a liquid crystal align in these…

A: (a) The rigid molecules that are in rod-shaped because of presence of multiple bonds and aromatic…

Q: What is the pressure in atm of the normal boiling point of C6H6? ____ atmWhat is the pressure in atm…

A: The pressue at the normal boiling point, normal melting point and normal sublimation point is…

Q: HO, 5. а. b. С. H H H H H-C-C-o H H H HH H H3C CH3 Arrange the above liquids in order of increasing…

A: Vapor pressure is the pressure exerted by a vapor. It is the tendency of liquid to change into…

Q: The normal boiling point of mercury (Hg) is 356.7 °C. At what temperature (in °C) would the vapor…

A: Given; Initial pressure (P1) = 1 atm (at normal boiling point) Final pressure (P2) = 0.2950 atm…

States of Matter

The substance that constitutes everything in the universe is known as matter. Matter comprises atoms which in turn are composed of electrons, protons, and neutrons. Different atoms combine together to give rise to molecules that act as a foundation for all kinds of substances. There are five states of matter based on their energies of attraction, namely solid, liquid, gases, plasma, and BEC (Bose-Einstein condensates). 

Chemical Reactions and Equations

When a chemical species is transformed into another chemical species it is said to have undergone a chemical reaction. It consists of breaking existing bonds and forming new bonds by changing the position of electrons. These reactions are best explained using a chemical equation.