ake was given an unknown solution thought to contain Pb²⁺ and/or Ba²⁺ and asked to perform chemical tests to identify each ion in solution. To begin, Jake added a solution containing sulphate ions to the solution and a precipitate formed. Jake concluded that the precipitate must be barium sulphate, proving the solution contained Ba²⁺ ions. What is incorrect about Jakes reasoning? Explain what Jake could have done differently?

Q: In a titration of HNO₃, you add a few drops of phenol-phthalein indicator to 50.00 mL of acid in a…

A: The total volume of acid we have taken to finally reach the endpoint = 50 + 30 = 80 mL And the total…

Q: • An unknown acid (HA) was titrated with NAOH(aq). •The following titration curve was constructed…

A: Given titration curve for the unknown acid (HA) with NaOH (aq): We have to calculate the proton…

Q: The titration curve attached was obtained from the titration of a 0.225 g sample of a solid acid…

A: From the titration curve, pH at the equivalence point is equal to 7.

Q: A chemistry student needs to standardize a fresh solution of sodium hydroxide. He carefully weighs…

A: Given, mass of oxalic acid = 32 mg = 0.032 g            volume of oxalic acid solution = 250 mL…

Q: A solution contains 6.16x1o-3 M potassium chromate and 9.26×10-3 M ammonium phosphate. Solid calcium…

A: 1.)  A.) First we would check which precipitates can form. Then we would check the Ksp values of…

Q: An analytical chemist has a solution containing chloride ion, Cl− . She decides to determine the…

A: A qualitative and a quantitative analysis is the best choice becausewe need to determine the…

Q: A solution contains 1.47×10-2 M silver nitrate and 7.61×10-3 M nickel(II) acetate. Solid ammonium…

A: Given: The concentration of silver nitrate in the solution = 1.47×10-2 M The concentration of nickel…

Q: A solution contains 1.33x102 M chromium(III) nitrate and 7.29×10-3 M iron(II) acetate. Solid…

A: I

Q: A chemistry student needs to standardize a fresh solution of sodium hydroxide. She carefully weighs…

A: The balanced reaction of sodium hydroxide with oxalic acid is given as follows-

Q: A solution contains 0.00010 M copper(II) ions and 0.0020 M lead(II) ions.   c) Imagine that you…

A: We know that, Ksp of PbI2 = 1.4×10-8 Ksp of CuI2 = 1.1×10-12

Q: 1. A 10.0 mL graduated cylinder to measure 10.0 mL of a 1.00 M CaCl2 solution into an initially…

A: The balanced chemical equation has to be written,

Q: A chemistry student needs to standardize a fresh solution of sodium hydroxide. He carefully weighs…

A: Given that : The mass of oxalic acid = 52 mg The volume of distilled water = 250 mL The volume of…

Q: A

A:

Q: Which species should be used to precipitate Pb+2, as the only cation, from a mixture of Pb+2 and…

A:

Q: solution contains 6.88×10-3 M ammonium carbonate and 1.16×10-2 M potassium fluoride. Solid magnesium…

A: The question is based on the concept of solubility product Principle.   it states that a weak…

Q: A solution is 1.5×10-2 M in Ba?+ and 1.8×10-2 M in Ca²+. Consider that Ksp (BaSO4) ==1.07 × 10¬10…

A: Given : [Ba+2] = 1.5 x 10-2 M  [Ca+2] = 1.8 x 10-2 M  Ksp(CaSO4) = 7.1 x 10-5  Ksp (BaSO4) = 1.07 x…

Q: Different aliquot of an unknown ionic solution was tested with different reagent to determine its…

A:

Q: A student titrates a weak acid with 0.100 M NaOH, adding 34.84 mL before a dark pink color is seen.…

A: Calculation of no. of mol of NaOH: No. of mol=Molarity×Volume=0.100 mol/L×34.84×10-3 L=3.484 ×10-3…

Q: Methyl orange and phenolphthalein are common chemical indicators often used in titrations. What is…

A: We have Methyl orange and phenolphthalein are common chemical indicators  , we have to identify the…

Q: 11) A student finds a bottle labeled "0.02803 M Acid X" and decides to perform a titration using a…

A: Acid-base titration is an analytical technique utilized to determine the unknown concentration of an…

Q: A chemistry student needs to standardize a fresh solution of sodium hydroxide. He carefully weighs…

A: Please find your solution below :

Q: A series of sulfate samples is to be analyzed by precipitation as BaSO4. If it is known that the…

A: When cations and anions in an aqueous solution react, precipitation reactions happen to produce an…

Q: A chemistry student needs to standardize a fresh solution of sodium hydroxide. She carefully weighs…

A: Molarity is the number of moles of solute upon the volume of solution in liters. Moles is determined…

Q: A solution contains 1.42×10-2 M manganese(II) nitrate and 1.47×10-2 M magnesium acetate. Solid…

A:

Q: In the following table, predict the identity of any precipitates formed when aqueous solutions at…

A: A chemical reaction occurring when two ionic compounds combine to form an insoluble salt is called a…

Q: What is the precipitate upon mixing lead(II) nitrate and potassium iodide? O KNO: KI Pbla O none…

A:

Q: A solution contains 1.38x102 M manganese(II) acetate and 8.89x10-3 M silver nitrate. Solid ammonium…

A: The given data contains, AgNO3=8.89×10-3M.

Q: 0.9600 M NaOH solution was diluted with a factor of 4. Then the diluted solution of NaOH was…

A: (i) Calculation of no. of mol of unknown acid: Calculation of volume of NaOH used: First titration…

Q: A solution contains 8.26x10-3 M potassium sulfite and 9.76x10-3 M sodium hydroxide. Solid calcium…

A:

Q: A chemistry student needs to standardize a fresh solution of sodium hydroxide. He carefully weighs…

A: Chemical equation for the titration of oxalic acid with NaOH is: H2C2O4+2NaOH →Na2C2O4+2H2O This…

Q: A solution contains 1.37×102 M lead nitrate and 7.70×10³ M magnesium acetate. Solid ammonium…

A: Given, a solution of 1.37×10-2M Pb(NO3)2 and 7.70×10-3M (CH3COO)2Mg. To this solution, NH4F is…

Q: A chemistry student needs to standardize a fresh solution of sodium hydroxide. She carefully weighs…

A: The reaction of oxalic acid and NaOH – H2C2O4 +2NaOH →Na2C2O4 + 2H2O

Q: For items 44-47. The chloride ion content of a 250.0-mL seawater sample was titrated against 0.1102…

A: This question can be solved using law of multiple proportions.

Q: Which of the following combinations will result in a precipitate? CHOOSE ALL THAT APPLY A) Pb2+ +…

A: Pb2+ + Cl-  ----> pbcl2  white ppt Ba2+ + NO3- ----> Ba(No3) 2 give ppt Mg2+. + SO4 2-…

Q: 4. A student was performing this experiment with an antacid tablet which contained CaCO3 but forgot…

A: a) Calcium hydroxide Ca(OH)2   forms an insoluble white precipitate . b) For back titration we need…

Q: A student conducted a titration in which 15.00 mL of acid was titrated with a sodium hydroxide…

A:

Q: xp # 2: suppose you have a {Zn2+(aq), Fe3+(aq)} solution, and you’re asked to separate the two ions,…

A: we have the solution containing Fe3+ and Zn2+ here Fe3+ is group III cation and Zn2+ is group IV…

Q: A chemistry student needs to standardize a fresh solution of sodium hydroxide. She carefully weighs…

A: Given: The mass of the oxalic acid taken = 294 mg The volume of the NaOH solution taken = 140.7 mL…

Q: A solution contains 1.41×102 M chromium(III) nitrate and 5.91×103 M manganese(II) acetate. Solid…

A: A solution contains 1.41×10-2 M chromium(III)nitrate and 5.91×10-2 M manganese (II)acetate. Solid…

Q: You mix 275.0 mL of 1.20 M Pb(NO3)2 with 300.0 mL of 1.85 M KI. Calculate the mass of precipitate.

A: Given data : Concentration of Pb(NO3)2 = 1.20 M Volume of Pb(NO3)2 = 275 mL Concentration of KI =…

Q: A student was given 2 beakers labeled with numbers 1 and 2, each beaker contains a clear solution.…

A: Limiting reagent is a reactant that get totally consumed at the end of the reaction. Limiting…

Q: A chemistry student needs to standardize a fresh solution of sodium hydroxide. He carefully weighs…

A:

Q: We have 4 test tubes filled with aqueous solution, one of which is definitely yellow. Use the…

A: A question based on qualitative analysis that is to be accomplished.

Q: Why was HCl added to the unknown sulfate solution before adding the BaCl2 solution?

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

Q: A solution contains 8.55x10-3 M potassium cyanide and 1.36×10-2 M sodium hydroxide. Solid nickel(II)…

A: The salt having lower value of solubility product precipitates out first in a solution . In the…

Q: A solution contains 1.22×10-2 M ammonium fluoride and 1.32x10-2 M sodium carbonate. Solid magnesium…

A:

Q: In a titration involving sodium hydroxide and hydrochloric acid, if significantly less acid were…

A: We use M1V1 = M2V2 for the determination of concentration of acid or base in the titration method.

Q: A solution contains 1.33×102 M chromium(III) nitrate and 7.29x10³ M iron(II) acetate. Solid…

A:

Q: A solution contains 1.14×10² M magnesium nitrate and 1.13×10-² M copper(II) acetate. Solid potassium…

A: The solubility product constant (Ksp) represents the solubility of products at equilibrium for…

Acid Base Titration

An acid-base titration is the method of quantitative analysis for determining the concentration of an acid and base by exactly neutralizing it with a standard solution of base or acid having known concentration.