What is the solubility of calcium fluoride in a buffer solution containing 0.650 M HCHO2 (formic acid) and 0.20 M NaCHO2? K„(CaF2) = 3.4 x 10-11 K.(HF) = 6.8 × 10¬4 K.(HCHO2) =1.7 × 10¬4 (Hint: Consider the equation CaF2 (8) + 2H30*(ag) = Ca²+ (aq) + 2HF(aq) + 2H20(1) and solve the equilibrium problem.) Solubility = |м

Q: A chemist has a 50.0 mL sample of 0.010 M Na₂C₂O4 at 25 °C (solution A, oxalate ion = C₂04²-). An…

A: In this chemical scenario, we are exploring a common concept in chemistry: the solubility of ionic…

Q: Calculate the molar solubility (in mol/L) of Ag2S(s) at 25 °C in a solution of 0.30 M Na2S(aq).  Ksp…

A: The majority of ionic compounds are water-soluble. When a substance is soluble, it dissociates into…

Q: Determine if the following salt is neutral, acidic or basic. If acidic or basic, write the…

A: A salt is acidic if it produces H3O+ ion upon dissolution in water.A salt is basic if it produces OH…

Q: What is the molar solubility of a salt Cal2 in 0.013 M of L aqueous solution at 25 °C? The value of…

A: The solubility equilibrium is: CaL2s⇌Ca2+aq+2L-aq The expression for solubility product for CaL2 is:…

Q: What is the pH (to two decimal places) of a saturated aqueous solution of LiF (at 25 °C)? Ksp = 3.8…

A:

Q: The K sp of Cu 3(AsO4)2 at 25 °C is 7.6 x 10-36. What is the molar solubility (s) of Cu3(AsO4 )2 in…

A: Molar solubility is the maximum amount of salt that can dissolve in the solvent to form Saturated…

Q: Calculate the molar solubility (in mol L–1)  at 25 °C of CaF2 in a 0.040 mol L–1  solution of NaF.…

A:

Q: Sodium sulfate is slowly added to a solution containing 0.0500 M Ca²+ (aq) and 0.0210 M Ag+ (aq).…

A:

Q: 1. AgCl with a Ksp of 1.6E-10 has a higher molar solubility than Ag2CrO4 with a Ksp of 2.0E-12. True…

A: Molar solubility is compared from expression of Ksp by dissociating compounds into ions.

Q: (Q49) The molar solubility of bisn at this temperature? The balanced chemical equation (aq). O 7.71…

A: Given,  Solubility(s) = 6.54 × 10-5 M Balanced chemical reaction,  BiI3(s) ---> Bi3+(aq.) +…

Q: 8. The standard Gibbs energy of the reaction N, (g) + 3 H₂ (g) → 2 NH, (g) is -32.9 kJ/mol at 298 K.…

A:

Q: Write the equilibrium-constant expression K for (a) H2(8) + I2(g) = 2 HI(g), (b) Cd²*(ag) + 4 Br…

A: Equilibrium constant for a reaction gives the concentration of products in forward reaction to that…

Q: Given the equation Ag*(aq) + 2 NH3 (aq) → [Ag(NH3),]*(aq) K = 2.00 × 107 determine the concentration…

A: Ksp of AgCl = 1.77 × 10-10  Kf = 2.00 × 107 Mass of AgCl = 767 mg = 0.767 g Volume = 100.0 mL =…

Q: The molar solubility of europium (1) hydroxide is 1.37 x 10' M. What is the K value for the dsoation…

A: The equilibrium between the soluble ions and insoluble salt can be described by the solubility…

Q: Ksp for Agl = 1.2 x 10-17. Calculate the molar solubility of Agl in 1 x 104 molar AgNO3 solution.…

A: AgI⇌Ag+  + I-  let ,intial concentration of Ag+=x , I- =xIn AgNO3 solutionAgNO3⇌Ag+  +NO3- 10-4 M…

Q: Determine the molar solubility of Fe(OH)2 in pure water. Ksp for Fe(OH)2= 1.94 x 1016.

A:

Q: Consider the following mixtures of chemicals. Complete the table by writing balanced equations and…

A: The equation will be:

Q: What is the nickel ion concentration in a solution prepared by mixing 397 ml. of 0.353 M nickel…

A: Given: Concentration of Ni2+ (from Ni(NO3)2 ) = 0.353 M Volume of Ni2+ solution = 397 mL = 0.397 L…

Q: Copper(I) ions in aqueous solution react with NH3(aq) according to Cu+ (aq) + 2NH3(aq) -…

A: Given: The solubility constant of CuBr is 6.3×10-9. The concentration of NH3 is 0.87 M. The…

Q: 1.0cm3 0.25mol dm3 potassium chromate(VI), K,Cro, is added as an indicator. 4 At the end-point, all…

A: A solution is said to be saturated solution, when the exact amount of solute has been dissolved in…

Q: Sulfuric acid (H2SO4) is a strong acid in aqueous solution, yet the pKa of sulfuric acid is 7.6 in…

A:

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

A:

Q: Sodium sulfate is slowly added to a solution containing 0.0500 M Ca² +(aq) and 0.0210 M Ag+ (aq).…

A: Given that, Initial concentration, [Ca2+] = 0.0500 M [Ag+] = 0.0210 M  We have to calculate the…

Q: ter the solubility expression for Mg3(PO4)₂(s). sp =

A: The solubility product constant (Ksp) is a equilibrium constant for a solid substance dissolved in…

Q: 2 Zn*2 (aq) +Fe*2 (ag) + 6 CN (ag) = Zn2Fe(CN)6 (5) [znz Fe (CN),] A certain equilibrium reaction…

A: Given that:                     Equilibrium constant (K) = 2.8 × 10-13…

Q: For the following equilibrium at 298 K, the equilibrium constant K = 2.84 x 1022 M5. Ag;PO4(s) +…

A: Natural reactions are two types- (a) irreversible reaction  (b) reversible reaction  A chemical…

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.