What is the rationale of diluting the solution in the flask with washing distilled water at the start or in the middle of a titration? Can this step affect the calculations?

Q: 220 mL of 0.03 M NaOH were added to 200 mL of 0.03 M benzoic acid (pKa = 4.2). What is the pH of the…

A: When NaOH is added to benzoic acid, sodium benzoate will form as per the chemical reaction:…

Q: II. Von Weirm an ratio. Fill in the Blanks With the given conditions during precipitation, conclude…

A: van-Weirman ratio is expressed as: Relative supersaturation=Q-SS                  (1)where,Q:…

Q: Why is rinsing of the burettes both with distilled water and solution a critical step in titration?

A: Please find your solution below : In chemical analysis, titration (volumetric analysis) is a…

Q: The chloride in a sample containing approximately 3.5 % NaCl is to be determined gravimetrically as…

A: The chemical equation representing the reaction for the formation of AgCl is shown below. The mass…

Q: Review the list of common titration errors. Determine whether each error would cause the calculation…

A:

Q: Suppose that extra volume (more than the actual volume) of 0.2 M NaOH solution was used to reach the…

A: fullscreen

Q: If the size of the precipitate is smaller than pores of the filter paper, the paper cannot retain…

A: A precipitate is an insoluble solid which forms from a liquid solution. When cation and anion…

Q: purpose of a dropwise rate

A: The purpose of titration to determine the concentration of unknown acid or base.

Q: What are the acceptable levels of chloride in boiler water?

A: Chloride level is very important in boiler water. If level of chloride is high then  it corrode and…

Q: A mixture of 500.0 mg acid A and 250.0 mg acid B is titrated with 0.1150 N NaOH. The endpoint is…

A: Neutralization reaction is a reaction between acid and base resulting in salt and water. An example…

Q: It is a solution of unknown concentration in which a solution of accurately known concentration is…

A: When we study analytical chemistry, titration is a major kind of study which helps in determination…

Q: Why is it necessary to completely fill the rubber tubing of the stopcock with the  solution before…

A: Titrations are done by using a buret. A burette is the volumetric measuring glassware carries marks…

Q: Which of the following steps MUST be done prior to titration of an analyte? I. Prepare a…

A: Steps done prior titration.

Q: Why you should not start a titration with zero mL as an initial volume

A: Hello. Since multiple questions have been posted, the first question shall only be solved in this…

Q: Solve correctly please. A 100 mL solution is prepared by weighing 1.50 g from the mixture of KI and…

A:

Q: Why did the color of the solution in the conical flask change at the end of the titration?

A: Titration : The method used to determine the concentration of a known substance using another,…

Q: 9. An aqueous solution of sulfuric acid is prepared by mixing a secondary standard of sulfuric acid…

A: Hii there, As there are multiple question posted. we are answering first question. If you need…

Q: Suppose there was a large air bubble in the tip of the acid burette during the titration and it was…

A: Volumetric titrations are used to determine the concentrations of an unknown solution. It involves…

Q: Which of the following steps MUST be done prior to titration of an analyte? I. Prepare a…

A: A multiple choice question based on quantitative analysis, which is to be accomplished.

Q: How do you choose the most suitable precipitate for gravimetric purposes if given many choices?

A: A precipitate is formed when an insoluble compound is dissolved in a solution when a precipitating…

Q: Problem: In standardizing a solution of NaOH against 1.431g of KHC8H4O4, the analyst uses 35.50 mL…

A:

Q: 1.In using a burette, why is it important (a) to rinse it with a little of the solution it is going…

A: Hey, since there are multiple questions posted, we will answer first question. If you want any…

Q: True or False  Very Insoluble precipitates are not the best candidates for gravimetric analysis.

A: In order for the analysis to be accurate, The ion being analyzed must be completely precipitated.…

Q: If the same mass of Na2SO4 (MW: 142 g/mol) and K2SO4 (MW: 174 g/mol) were weighed and used for the…

A: The balanced equation for the formation of the precipitate, BaSO4(s) is: Ba2+(aq) + SO42-(aq)…

Q: 10.00mL of 0.10M acetic acid were collected in an Erlenmeyer flask, and then diluted to 100mL with…

A:

Q: How many moles of hydrochloric acid were there in the volume of acid added in the titration? ii)…

A:

Q: Why are many ionic precipitates washed with electrolyte solution instead of pure water?

A: The polar substances are the one which is separated by electric charge and leads to the formation of…

Q: prepare standards by conducting a serial dilution of 2mg/ml BSA down to 0.0625mg/ml BSA. How many…

A: Serial dilutions involves simultaneous dilution steps that helps in obtaining highly diluted…

Q: The NaOH titrant in this experiment was prepared to be approximately 0.1 M and then was…

A: Given that, in an experiment,  approximately 0.1 M of NaOH solution was prepared and then was…

Q: why is it important in the heavy metal test to look for new precipitation (solid)?

A: The heavy metal test is an analytical technique used to detect the presence and quantify the…

Q: pka1= 1,3; pka2 = 4,1 Masse moléculaire A= 90,0 g/mol; B= 128,1 g/mol; C= 166,2 g/mol O НО, OH A=…

A: The answer for this problem is provided below in great details within the attached figures.

Q: Explain the importance of performing blank titration in a precipitation titration experiment

A: A blank titration is carried out by titrating a fixed and known concentration of titrant into a…

Q: What is the importance of non-aqueous titrations in pharmaceutical analysis?

A: Non-aqueous titrations are highly significant in the realm of pharmaceutical analysis due to…

Q: Mention the types of volumetric titration and briefly point out their differences.

A:

Q: Definition/explanation of titer in chemistry.

A: Titer (US – titre in British English) is a way of expressing concentration. ... In titration, the…