calculating ΔHmix for regular solutions, please derive 1) the mole fraction for the minimum of ΔHmix 2) the equation for the minimum of ΔHmix

Q: What is the  of effect of stirring  on the freezing point of pure acetic acid? why?

A: 1) The freezing point of pure acetic acid is 16°C. Stirring at the freezing point of pure acetic…

Q: State whether the entropy of the system increases or decreases in each of the following…

A: More is the disorderness present in the atoms of a substance more will be its entropy.

Q: Many salts produce heat when dissolved in water andthe solution becomes warm, reflecting the fact…

A: Let us take two salts NaCl and CaCl2. When NaCl is added to water, the temperature goes down whereas…

Q: Find the equilibrium composition (in terms of pressure) of a system originally consisting of 0.25…

A: Given : Moles of N2 = 0.25 mol. Moles of H2 = 0.75 mol. And total pressure = 1 atm

Q: How was x calculated, was quadratic or the 5% assumption used?

A: Here the value of "x" is calculated by using the quadratic equation which gives x = 0.0125 M

Q: f dissolving 1.5 g of a solute into 100 mL of water caused the temperature of the solution to…

A: The formula of elevation in boiling point is:Here,  is the increase in boiling point, Kb is the…

Q: Derive the entire van't Hoff formula shown below:   List all the assumptions. Start from this…

A:

Q: AH° and AG° become equal at temperature of К.

A: Relationship between ΔGo and ΔHo is,

Q: Q5: Calculate the approximate rise in solution temperature if 1 liter of 1 N of HCl is mixed with 1…

A: Enthalpy of neutralization = -13.67 kcal/eq. q = 13.67 kcal mass of solution , m = 2 kg = 2000 g (…

Q: Which of the following systems show an increase in entropy? о CH3OH (→CH3OH (g) NaCl → Nat (s) CI…

A: To determine whether a process increases entropy, we need to consider the change in the number of…

Q: At 20°C, the vapor pressure of toluene is 0.0289 atm andthe vapor pressure of benzene is 0.0987 atm.…

A:

Q: Calculate for the final boiling point of a 2.70 M aqueous solution of KBr. The boiling point…

A:

Q: Determine the vapor pressure of benzyl alcohol at 462.3 K in Pa.

A: Given :-  Temperature = T2 = 462.3 K  Vapor pressure of benzyl alcohol = P2 = ?…

Q: Adding table salt to water elevates its boiling temperature and speeds up the cooking process…

A: moles of salt = 0.291 molmass of solvent i.e. water = 2 kg as the density of water is 1 g/LKb =…

Q: Q.3 Hydrogen sulphide 8-h average limit is 20 ppm at 25°C and 1 atm. Calculate concentration of…

A: Given: Hydrogen sulfide (H2S) 8-h average limit = 20 ppm Also, Temperature, T= 25°C = 298.15 K…

Q: Given the Kb for water (Kb=0.51), calculate for the change in boiling point (in unit degrees…

A:

Q: Which of the following is true for water at 373.15K and 1 bar of pressure? The Gibbs energy of the…

A: Given: water at 373.15K and 1 bar of pressure.

Q: Temperature of saturated Copper (II) Sulfate solution with concentration of 2.28 mol%.

A: Concentration of copper(II) sulfate saturated solution is 2.28 mol%

Q: the value of ΔGo (kJ/mol) at 3.3oC for the dissolution of an ionic solid with a Ksp of  2.5 x 10-11…

A:

Q: Derive a Gibbs-Duhem type of equation for the volume of a binary solution.

A: For a system at equilibrium Gibbs-Duhem equation is written as: The equation depicts that chemical…

Q: Derive an effective Henry’s constant formula for ammonia (NH3) dissolved in water

A: Henry's law describes the relationship between the concentration of a gas in a solution and the…

Q: For a solution containing 0.050 M sodium butanoate (the sodium salt of butanoic acid, butanoic acid…

A: Answer:Sodium butanoate is the salt of weak acid and strong base, therefore, butanoate ion will get…

Q: Mark the true statement Choice 1 of 4:All of the statements are false. Choice 2 of 4:Another name…

A: The equilibrium which involves different phases of matter, i.e. solid, liquid and gas, and the…

Q: Calculate the molar solubility in water at 20 °C and the respective partial pressure for: a) Oxygen…

A:

Q: Describe how the nature of your acid/base and the concentration of your acid/base impacted the…

A: The enthalpy of the neutralization reaction, ΔHneutralization between the HCl and NaOH is negative.…

Q: For CaF20) Ca (aq) + 2 F (aq) + 2 F (agh K= 3.9 X 10 at 25 °C and the standard Gibbs energy of…

A: GivenCaF2(s) ⇔ Ca2+(aq)  + 2F-(aq)K = 3.9 × 10-11T = 25°C T = (273.15 + 25) = 298.15 K∆GCaF2(s)° =…

Q: concentration change in the reaction is given by: -A[S:Os ]=5 x 10 M In mixtures 1 3, the…

A: The rate of the reaction refers to the speed at which the reaction takes place. The rate of the…

Q: Consider the reaction: N₂(g) + 3H₂(g) = 2NH3(g) AG°f (NH3) = -15.73kJ/mol Determine the equilibrium…

A:

Q: true or false when co2 sublimes delta h is greater than zero and delta s is less than zero

A: Since sublimation is a process in which the phase change happens from solid to gas And since the gas…

Q: What is the A,G for the following reaction (in kJ mol ¹) at 298 K? 2 Si (s) + 3 H2(g) Si₂H6 (g) g…

A: The given equilibrium reaction   2Si(s) + 3H2(g) ⇌ Si2H6(g) PH2 = 1.21 bar  PSi2H6 = 0.5 bar   PC =…

Q: From your data in Part 1 of the experiment, you calculate the natural log of the partial pressure of…

A: Given data :

Q: State whether the entropy of the system increases or de-creases in each of the following…

A: A thermodynamic function which describes about the disorderness (or) randomness of the system is…

Q: 4) For such a phase diagram, a) Do you expect the newly formed bonds (A-B) are stronger than the…

A: The strength of the newly formed bonds (A-B) in comparison to the initial bonds (A-A and B-B)…

Solutions

Solutions can be considered as homogeneous mixtures which contain two or more than two chemical substances. The chemical substance which is the greater part is defined as solvent. And the chemical substance that is dissolved in a solvent is referred to as solute. Solution chemistry plays an important role in chemistry since it supports many commercial applications of solutions.