1. When H2SO4(aq) was reacted with NaOH(aq) in the titration, why was a precipitate not formed? 2. Why did the colour of the solution in the conical flask change at the end of the titration? 3. In this acid-base titration, what did we use to measure the volume of the H2SO4(aq)? 4. What do we mean by stoichiometric point of a titration?

Q: 2. Why is it important that the color change occurs by the addition of a single drop? Explain in…

A: As per the rule only first question can be answered.

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

A: (i) The initial concentration of NaOH = 0.960/4 = 0.2400 M. From the given table the volume of NaOH…

Q: A 21.54-mL volume of 0.301 M NaOH is required to reach the stoichiometric point for the titration of…

A: The acidity of aqueous solution is depends on the concentration of hydrogen ions.Weak acids are…

Q: The pH of swimming pools is made slightly basic
 by spreading solid Na2CO3 across the surface.…

A: Answer:- This question is answered by using the simple concept of calculation of ph of a slat…

Q: 25.0 mL aliquots of a 0.106 mol/L Sn2+(aq) solution was used to standardize an acidified potassium…

A: Titrations are carried out in chemical laboratories to discover concentration of unknown solutions…

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

A:

Q: 1) Potassium permanganate solutions used in oxidation-reduction titrations are often standardized…

A: Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for…

Q: A sample of solid Ca(OH)2 was stirred in water at a certain temperature until the solution contained…

A: a) from the molarity eqution , M1V1 = M2V2 , we have M1 x 84.3 ml = 2 x 64.6ml x  0.0948  M M1 =…

Q: 1. A student measured the amount of dissolved oxygen in river water sample using Winkler titration…

A: Answer:- this question is answered by using the simple concept of stoichiometry which relationship…

Q: A 44.6 mL of 0.103 M HCI is added to an antacid sample. The solution is titrated to a bromophenol…

A: Given, Volume of HCl = 44.6 mL = 0.0446 L   (1mL = 0.001 L) Molarity of HCl = 0.103 M = 0.103 mol/L…

Q: The NaOH solution was standardized using the following system. The balanced neutralization reaction…

A: The ratio of moles of solute to the volume of solution in liters is known as concentration.

Q: A. What is the pH of an aqueous solution with a hydrogen ion concentration of [H+]=4.9×10−7M? B.…

A:

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

A: As you have posted multiple questions in a single request, we will solve the first question for you.…

Q: 3) 2.413 g sample contains Na CO, NaHCO and inert material. This sample was solved in water and…

A: For Phenophthalien indicator (meq ) NaHCO3 = (meq ) of HCl M1 × 80 = 6.13 × 0.09644 M1  = 0.0073897…

Q: 3) 2.413 g sample contains Na CO̟, NaHCO and inert material. This sample was solved in water and…

A: Given, Amount of a mixture of Na2CO3, NaHCO3 and inner material = 2.413 g. Volume of the solution =…

Q: a) A titration is a method of analysis in which the result is achieved by the measurement of volume.…

A: A titration is a quantitative technique where the concentration of an unknown solution is determined…

Q: 19- A sample of limestone is titrated for its value as a neutralizing agent. A sample weighing 1.000…

A: Limestone is CaCO3 Moles of CaCO3 = 1 / 100 = 0.01

Q: Consider the titration Ba(OH)2 (aq) 1 2 HNO3 (aq) ➝ Ba(NO3)2 (aq) 1 2 H2O (l). The equivalence point…

A: The neutralisation reaction taking place is  Ba(OH)2 (aq) + 2 HNO3 (aq) -------> Ba(NO3)2 (aq) +…

Q: During the titration of an HClO4 solution with 0.10320 M NaOH, a student, Lovely became distracted…

A: Conc of NaOH =0.10320M Original sample volume= 25mL Volume of NaOH added=28.060ML Extra HCl…

Q: The solubility of carbonates of alkaline metals in water is   B a. CaCO3 < BaCO3 < MgCO3 < BeCO3…

A: The solubility of a compound depends on the nature of the solute and the solvent. If the nature of…

Q: Briefely explain the meaning of the following terms as they relate to this experiment. a) Titration…

A: The brief explanations are given below -

Q: 2.5 g sample of impure mercury (II) oxide, in excess of potassium iodide is being resolved. HgO(k)…

A:

Q: The concentration of I3 (aq) in a 20.0 mL solution was determined using a titration with 0.35 M…

A: Molarity of iodide ion concentration can be calculated as follows

Q: In a titration of KOH, 0.0725 g of KHP is weighed into a flask and dissolved in deionized water. The…

A: The molar mass of KHP is 204.22 g/mol. The number of moles of KHP can be calculated by dividing the…

Q: 6. Why do we need to precipitate from a hot solution? 7. Why is the precipitating agent added all at…

A: Since you have posted multiple questions, the answer for first two question is given below. Kindly…

Q: Calculate the molar concentration of H3O+ ions and the pH of the following solutions: (a) 25.0 cm3…

A: Given,  (a). 25.0 cm3 of 0.144 M HCI(aq) was added to 25.0 cm3 of 0.125 M NaOH (aq) (b). 25.0 cm3 of…

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

A: In order to find whether the given acid is monoprotic, diprotic  or triprotic we first write down…

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

A:

Q: In an analytical laboratory that analyzes BOD, the titrant solution of sodium thiosulphate must be…

A:

Q: - After a certain amount is taken from a sample containing 5% (w/w) NaCl, it is dissolved by the…

A: For determination of amount that was taken from sample, initially the amount of unreacted AgNO3is…

Q: What volume (in ml) of 0.12 M HBr solution is be required to titrate 125 mL of a 0.1 M Ca(OH)2…

A: In this question, reaction for titration of calcium hydroxide with hydrogen bromide is given. The…

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

A: Given-&gt; Weight of oxalic acid = 54 mg = 0.054 gm  (1 gm = 1000 mg) Volume of oxalic acid solution…

Q: MnO4 (aq) + H2O2 (aq) → Mn2+ (aq) + O2 (g) (a) Sketch a flask containing an analyte solution before…

A: To sketch the flask at different points in the titration of hydrogen peroxide(H2O2) solution with…

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: Determine the pH at the point in the titration of 40.0 mL of 0.200 M H,NNH, with 0.100 M HNO, after…

A: a.)To fill first table , we would first calculate moles of both H2NNH2 and strong acid HNO3 ( which…

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

A: The titration curve given is,

Q: In a titration experiment, a solution of rubidium hydroxide (RBOH) of unknown concentration was…

A:

Q: Which of the following ionic compounds is most likely to dissolve in water? a.Fe(OH)3 b.AgBr…

A:

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

A: Answer :-  Triprotic  The given Unknow acid is triprotic…

Q: When a standard solution is brought into a reaction, the point at which the reaction is exactly…

A: Titration is a conventional technique to evaluate the quantity of analytical present in a sample…

Q: Explain how (the dreaded chemistry) the addition of alum decreases alkalinity and tends to lower the…

A: Alum is an hydrated compound with molecular formula Al2(SO4)3.14H2O.

Q: Consider the titrimetric determination of acetic acid (60.05 g/mol) in vinegar. Titration of a 5.00…

A:

Q: What volume in mL of 0.38 M HBr solution is required to titrate 125mL of a 0.18 M Ca(OH)2 solution?…

A: Molarity of Ca(OH)2 = 0.18M The volume of solution = 125 ml = 0.125 lt No of moles can be calculated…

Q: What volume in mL of 0.45 M HBr solution is required to titrate 125mL of a 0.21 M Ca(OH)2 solution?

A: The equation of the above process is: Ca(OH)2 + 2HBr -------------&gt; CaBr2 + 2H2O To find the…

Q: 75.0 mL of 0.15 M aqueous carbonic acid is mixed with 145.0 mL of 0.25 M aqueous lithium hydroxide.…

A: Aqueous carbonic acid and lithium hydroxide react together forming lithium carbonate and water. The…

Q: Molarity of the NaOH solution? Mass of H2C2O4·2H2O=1.32191 g Volume of the H2C2O4·2H2O…

A: During titrations, the concentration of one solution is known and for others, it is calculated.

Q: What volume of 0.0105  -M HBr solution is required to titrate 125 mL of a 0.0100 – M Ca(OH)2…

A: Given the volume of 0.0100 M Ca(OH)2 taken for titration = 125 mL   Millimoles(mmol) of Ca(OH)2…

Q: For the titration of HOCl in bleach solution by Na2S2O4 the following reactions are used: HOCl-(aq)…

A: Reaction between HOCl in bleach solution and Na2S2O4 are represented as: HOCl-(aq) + H2O(l) + 2I-…

Q: The amount of I, (aq) in a solution can be determined by titration with a solution containing a…

A: