2Al(s) + Fe2O3(s) = Al2O3(s) + 2Fe(s) What is the Delta H degrees for this reaction?

Q: What is the net force on this box? 30 N 60 N 20 N 50 N to the right 60 N to the left b. 10 N to the…

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Q: 1. Why does the temperature of a boiling liquid remain constant when heat is continuously being…

A: Every substance has a definite boiling point. When a liquid is heated, then at a particular…

Q: What predominate intermolecular force is in NH3? O Hydrogen bond O dipole-dipole O dispersion force

A: Please find your solution below : The predominant intermolecular force in NH3 is hydrogen bond.

Q: A 125.3 gram sample of an unknown substance (MM = 189.50 g/mol) is cooled from 233.0 °C to 147.6 °C.…

A: Concept - In the question, because the substance is getting cooled, there will be release in the…

Q: Energetics of Phase Change Use the table below to help answer the following questions: Methanol…

A: The number of moles of steam is 1.00 mol. The temperature is reduced from 145°C to -50°C.

Q: Q.2 Do the same procedure to calculate the interaction potential of two water molecules in a…

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Q: Identify the major intermolecular force in the following molecule: + O London Dispersion…

A: There are various types of interactions present between a bond of a molecule such as: Dipole-dipole…

Q: k all of the molecules with a permanent net electric dipole : CHCl3, I

A: To identify from the below molecules that has net electric dipole moment. CHCl3 I2

Q: 2-2. Do you predict apolar bonding and micelle formation to occur when oleic acid in its RCOOH form…

A: Formula for oleic acid is: C18H34O2 Oleic acid has a COOH part and a hydrocarbon part [C17H33]

Q: 4. Determine the normal melting point of carbon tetrachloride ( in °C) given the following data: AS…

A: Given that : ∆H°fus=2.67 kJ/mol=2.67×103 J/mol∆S°fus=10.86 J/mol.K We have to calculate the normal…

Q: Energy Constants for H2O 334 J/g = Heat of Fusion (Hf) 2260 J/g = Heat of Vaporization (Hv) 2.11…

A: The heat required to boil off water is calculated as shown below: Heat = Heat required to raise the…

Q: How much heat is removed from the condensation of water at 25 °C? Given: S° H2O (1) = 69.9 J/mol·K…

A: In condensation gas become liquid ∆S = Sproduct - Sreactant  ∆S =  69.9 J/ mol K - 188.7 J/ mol K ∆S…

Q: 0 CI JAH 3

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Q: 7.) Think about what is happening to molecules in the can as the temperature increases. Tell if the…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: Identify the most dominant intermolecular forces in the following compounds: CHCl3, SF2, SHF, N2F4,…

A: There are various type of intermolecular forces present in the compound such as hydrogen bonding,…

Q: A 123.6 gram sample of an unknown substance (MM = 189.50 g/mol) is cooled from 233.0 °C to 147.6 °C.…

A: Given: Mass of sample is 123.6 g. Molecular mass is 189.50 g/mol. Heat capacity of liquid is 1.62…

Q: Chemical Thermodynamics Calculate the ASfor the vaporization of water at 100°C. AHpap 40.7 kJ mol 1…

A: Given: The ∆Hvap is 40.7 kJ mol-1. The temperature is 100 °C. Introduction: The entropy of…

Q: Which of the following molecules, when viewed in three dimensions, is nonpolar, with zero net…

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Q: nknown liquid (MM = 83.21 g/mol) at 19.2 °C to a gas at 93.5 °C? %3D =pecific heat capacity of…

A: Amount of heat required., q1 = mass x specific heat x change in temperature q2  = mass x ∆H

Q: A 110.1 gram sample of an unknown substance (MM = 189.50 g/mol) is cooled from 233.0 °C to 147.6 °C.…

A: The question is based on Hess law.   it  states that net enthalpy change for the reaction remains…

Q: I need help with parts D) and E)

A: The electronegativity of oxygen is higher than hydrogen and carbon so, both the C-O bond and O-H…

Q: Careful measurements reveal that the boiling point of water on the top of a mountain is 95.0 °C.…

A: If the vapor pressure is identified at any temperature, and the enthalpy of vaporization is known.…

Q: Consider the following 2 molecules: arsane which has the molecular formula AsH3, and dimethylether,…

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Q: 2. Identify the strongest type of intermolecular force present in the following molecules List IMFS…

A: The molecules given are H2, CH3F, NH2CH3, and CH3OH.

Q: The binary hydrogen compounds of the Group 4A elements and their boiling points are: CH4, –162ºC;…

A: All the given compounds, CH4 , SiH4 , GeH4 and SnH4 are tetrahedral and are non-polar in nature. So,…

Q: greater: A)H2O2, B)CH4, C)Br2, D)HCl

A: A) H2O2 has hydrogen bonding  B) CH4 is non-polar. So it has London-dispersion interaction  C) Br2…

Q: Indicate the molecular dipoles of the following compounds. If the dipole is zero write zero.

A: Dipole moment: It can be arises due to the charge separation of atoms ,due to the difference between…

Q: Identify the most dominant intermolecular forces in the following compounds: PI3, N2, H2O, AsBr3,…

A: Nitrogen (N2) atoms stick together to form a liquid due to London dispersion forces. Water ,H2O…

Q: Explain the observed trend in the boiling points of these compounds. H,Te -2°C H,Se -41.5°C -60.7°C…

A: The dispersion forces magnitude depends upon the size of the electron cloud. Generally, on moving…

Q: Melting occurs in going from region VII V VI 1 atm I II IV III O III to II. I to II. OI to III. IIl…

A: The given phase diagram can be used to predict different phase transition processes. Some of them…

Q: Estimate the boiling point of Br(1) (AH= 30.9 kJ; AS = 93.0 J/K). Br2()Br2(g) 85 deg C 59 deg C 373…

A: Given  Reaction  Br2(l)  →  Br2(g) ∆H = 30.9 KJ        = 30.9 × 103  Joule           ( 1 KJ = 1000…

Q: (a) List the following molecules in order of increasing polarizability:GeCl4, CH4, SiCl4, SiH4, and…

A: The polarizability of the substance is dependent on the size of the substance. As the size of the…

Q: Identify which one in each pair has a higher boiling point and explain briefly the reason for your…

A: Boiling point is defined as the point at which vapour pressure of liquid becomes equal to…

Q: A 125.3 gram sample of an unknown substance (MM = 189.50 g/mol) is cooled from 233.0 °C to 147.6 °C.…

A:

Q: 5. In the freezing process of water liquid at 273K, the molar heat of freezing (AHf = 6090 J/mole).…

A: According to the Clausius-Clapeyron equation, the integrated form of fusion process of water from…

Q: Arrange the following equimolal compounds in terms of increasing boiling points: I. Ba(OH)2 II.…

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Q: 6. Identify the principal intermolecular forces in the following compounds: HF, С,Н, NCI3, Br2, HI

A: There are following intermolecular forces : Van der waal forces  London dispersion forces Hydrogen…

Q: t significantly different AT values. Explain the difference in A7 values of th bstances based on…

A: The the question is based on concept of boiling point. boiling point is the measure  of…

Q: 1. The following is not a state function: Group of answer choices a, E b, S c, G d, H e q   2.The…

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Q: Given that for liquid water, AH(fusion)=334J/g, how much is needed to melt approximately 34.2 grams…

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Q: electrostatic potential map strength of intermolecular forc substance v (Choose one) 1 (highest) A 3…

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Q: X is a metal that is solid under standard conditions. The element bromine is a diatomic liquid under…

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Q: Find the magnitude and direction of the resultant force for the system of forces shown in the…

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Q: What amount of heat is required to convert 10.9 g of an unknown liquid (MM 83.21 g/mol) at 19.2°C to…

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Q: Determine the amount of heat lost or gained by 2.50 moles of gaseous water in a closed container,…

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Q: How many degrees of freedom for the following molecules with explanation ? CO CO2 Ar NH3 Ne HCI H20

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Q: Rank the boiling point of the molecules below in DESCENDING orders. но. Q R S O Q, S, P, R O P, R,…

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Q: Which of the following would have a higher boiling point: NaCl or Cl2? Explain your answer.

A: The boiling point is the temperature at which the vapor pressure of a substance becomes equal to the…

Q: Which member in each pair has the greater dispersionforces? (a) H2O or H2S, (b) CO2 or CO, (c) SiH4…

A: Dispersion forces mainly depend upon two factors: geometry of a molecule and its molecular weight.…

Quantum Mechanical Treatment of the Valence Bond Theory

Quantum mechanical treatment of valence bond theory refers to the relationship established between the quantum mechanical theory and the valence bond theory to describe the chemical bonding in a particular molecule.