1 x 14 The table shows the value of the activity coefficient of Ca²+ at different values of ionic strength. nterpolate the values in the table to find the activity coefficient of Ca²+ at p=0.025 M. Ionic strength (u, M) Activity coefficient, yCa²+ 0.001 wasanit 0.746 0.604 0.656 0.714 0.005 0.01 0.05 0.1 0.870 0.749 0.675 0.485 0.405 1762 02 1 ND 01 () (0) 10,02 oma o.13. vomoll d simov ada griego to svods orb to smold

Q: The Ksp value for magnesium arsenate [Mg3(AsO4)2] is 2.00 X 10-20 so if a chemist added 1.19 x 10-2…

A:

Q: One approach for removing dissolved nickel from water is to precipitate it as NiS(s). The standard…

A: Given: Ni2+ + HS- ⇔ NiS (s) + H+ The standard molar Gibbs energy of Ni2+ is -45.6 kJ/mol. The…

Q: In the following equation HNO2 (aq) + H2O (l) ↔ H3O+ (aq) + NO2-(aq), 0.37 M of nitrous acid was…

A: Recall the given chemical equation HNO2aq + H2Ol ↔ H3O+aq + NO2-aq concentration of HNO2 is 0.37 M…

Q: A mixture of CH₂Cl₂ (A) and CHCl3 (B) with XA = 0.373 has a total vapor pressure of 0.245 bars at…

A: Given: mole fraction of CH2Cl2 in vapor phase: yA=0.427xA=0.373   Total vapor pressure = 0.288 bars

Q: Calculate the activity of La3+ in a saturated solution of La(IO3)3. Ksp =  1.0 x 10-11

A:

Q: The standard Gibbs energy of formation for PH3(g) is 12.7 kJ/mol at 298 K: 1/4 P4(s) + 3/2 H2(lg) –…

A: The free energy of formation (∆G0) is a change of free energy which accompanies the formation of 1…

Q: An equimolar solution of ammonium sulfate, sodium chloride and magnesium nitrate has ar ionic…

A: Suppose the concentration of each solution is M since solutions are equimolar. Hence concentration…

Q: Calculate the DHLL activity coefficient for Cl- or Fe3+in a solution of FeCl3 that is 0.1 m in…

A: The objective of the question is to find the DHLL (Debye-Hückel limiting law) activity coefficient…

Q: If the concentration of fluoride anion and aluminum cation was increased to 5 M, by how much would…

A:

Q: equilibrium law expression for the  reaction  Mg(s) +  2AgNO3(aq) 2Ag(s)  + Mg(NO3)2(aq)

A: The equilibrium law expression for the given reaction is based on the law of mass action, which…

Q: What is the equilibrium constant for the neutralization of nitrous acid with ammonia? The Ka for…

A: The overall reaction of nitrous acid and ammonia can be represented as follows: HNO2 (aq)  +  NH3…

Q: Given a solution containing 0.010 M CaCl2 and O.020 M MgCl2, which of the following statements is…

A: Activity coefficient depends on the concentration of salt. Activity coefficient of salt depends…

Q: The Kp for N2(g) + 3H,(g) = 2NH3(g) is 3.16 x 10-5 at 745K. If a 6.00L vessel is initially charged…

A: The given equation is- N2 (g) + 3H2 (g)⇔2NH3 (g) Initial concentrations are- PN2 = 0.0182 atm PH2 =…

Q: Calculate K for each salt in an aqueous solution at 25 °C in Compound Formula which u = 0.0100 M.…

A:

Q: For the reaction aA(aq) + bB(1) cC(g) + dD(aq) the equilibrium constant, K, can be written as Pc…

A:

Q: The activity of Ba2+ is closest to its molarity when the ionic strength is equal to what? infinity,…

A: Activity is defined as the ability of particular ion concentration in a given solution.

Q: What is the symbolic expression for the equillibrium constant for the reaction:  2C2H6(g) + 7 O2(g)…

A: Equilibrium constant is a number that expresses the relationship between the amounts of products and…

Q: Calculate the pOH of a 0.0472 M HCIO, solution at -ach temperature. 0°C pOH = 45 °C pOH = T (°C) 0 5…

A: In this scenario, we are dealing with a 0.0472 M HClO4 (perchloric acid) solution. HClO4 is…

Q: The equilibrium constant expression for the reaction CuO(s) + H₂(g) = Cu(s) + H₂O(g) is Kc =…

A:

Q: The bisulfate (or hydrogen sulfate) anion, HSO4 , is a weak acid. The equilibrium constant for the…

A: Herevare some simple calculations.  Let us proceed towards it.

Q: A saturated solution of magnesium fluoride, MgF2, was prepared by dissolving solid MgF2 in water.…

A: Given,  Concentration of Mg2+ = 1.18 x 10-3 M

Q: The standard reaction Gibbs energy of the isomerization of borneol (CioH17OH) to isoborneol…

A: Borneol --> isoborneolT= 503 KR= 8.314 J/K.moleTotal number of moles = 0.15 mole +0.30 mole =0.45…

Q: The activity is equal to the concentration when the activity coefficient is equal to ----

A: The relationship between activity and concentration:

Q: Calculate AG for the reaction A + B C + D if [A]= 2.6 µM, [B]= 8.6 µM, [C]= 7.5 μM, and the [D]= 8.2…

A: Check the formula for ∆G° and use that formula to calculate the value.

Q: Calculate the activity a of a 9.34 mmol kg-¹ solution of AgCl at 25°C. Enter your answer to 5…

A: It is a basic question.  Here use the formula.  Then put the values and do the simple calculations.

Q: The reaction of ozone in the atmosphere and nitric oxide has a reaction enthalpy and reaction…

A: To calculate Gibbs free energy , we would use formula : ∆G = ∆H - T∆S  where , ∆H = Enthalpy change…

Q: 12. The following quantities of salts were added to a volume of water to make 1 liter of solution: 1…

A:

Q: The Ksp value for magnesium arsenate [Mg3(AsO4)2] is 2.00 X 10-20 so if a chemist added 1.19 x 10-2…

A:

Q: The Kp for hypoiodite anion (IO) is 4.35x10-4. What is the pH of a 0.212 mol L-1 solution of lithium…

A: Hypoiodous acid is a weak acid. It forms a lithium salt when reacts with LiOH.  The hydrolysis of…

Q: The reaction of ozone in the atmosphere and nitric oxide has a reaction enthalpy and reaction…

A:

Q: Calculate the pOH of a 0.0376 M HCIO solution at each temperature. 0°C pOH = 35 °C pOH = T (°C) 0 5…

A:

Q: Consider a reaction with a large negative Gibbs energy change, as shown below: YZ, AG/ - 42.6 kJ mol…

A: Answer:1. If , then system is at equilibrium.2. If , then system is not at equilibrium and it will…

Q: Consider the reaction at 25 degrees celsius 2NO3-(aq)+8H+(aq)+3Cu(s)=3Cu2+(aq)+2NO(g)+4H2O(l) At…

A: Applying the Nernst Equation for the given cell reaction:

Q: Calculate the activity of IO3 in a saturated solution of La(IO3)3 in water. Ksp = 1.0x 10-11 O…

A: Given: Ksp of La(IO3)3 = 1.0 × 10-11

Q: You have found the following: CaSO4(s) Ca+2(aq) + SO4-2(aq) K = (6.053x10^-5) What is the value of…

A:

Q: Calculate the ionic strength of a saturated solution of La(IO3)3 with 0.010 M La(NO3)3. Kp = 1.0 x…

A: From calculation option -b is correct.

Potentiometric Titrations

Potentiometric titration is one of the important titration methods and is mainly carried out to characterize acid solutions. It follows a method similar to that of the normal titration technique, but the main difference is that there is no indicator used in the potentiometric titrations. Instead of using an indicator, electrodes are employed for monitoring the whole titration process. A scientist named Robert Behrend did the potentiometric titration for the first time, and it was done using the mercurous solution and potassium chloride.