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PLEASE HELP ME ANSWER QUESTION 5) A student starts a titration without phenolphthalein in the Erlenmeyer flask. The student realizes the mistake and adds the phenolphthalein during the titration. Once the phenolphthalein is added, the solution in the Erlenmeyer flask remains colorlessCan the results of this titration be used? Concisely explain.

I need help answering question 1.

NOTE: ANSWER ONLY NO. 8

Pls help ASAP on both questions.

Please answer these three multiple type questions. Thank you very much!

This is about determinition of acid content in vinegar through titration, please answer the questions. Please answer only the items nummber 4-5. i only put other questions for guide. 1. What is the purpose of standardization? 2. What is the primary standard used (name and formula)? ANS: KHP 3. Suppose that the KHP is not completely dry. Will the reported molar concentration of the sodium hydroxide solution be higher, lower, or unaffected? Explain. 4. In preparing the buret for titration the final rinse is with the NaOH titrant rather than with distilled water. Explain. 5. The procedure suggests the addition of only 2 drops of phenolphthalein. What will be the effect to the analysis if larger amount of phenolphthalein is added?

13. What is indicated by the shape of the titration curve? PH a. b. C. d. e. Volume of titrant A diprotic acid was titrated with a strong base. A triprotic acid was titrated with a strong base. A diprotic base was titrated with a strong acid. A triprotic base was titrated with a strong acid. A strong acid was titrated with a strong base.

15) While doing titration, we put the analyte in the O d) Volumetric flask c) Erlenmeyer flask b) Graduated pipette O a) Beaker

How does a redox titration differ from an acid base titration in general? How did this titration differ from the acetic acid titration lab specifically?

Answer the following questions. Questions Nos. 7-8

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1) Why are the titrations in this lab carried out in acidic solution? 2) If a student weighs out 0.565 g of oxalate unknown and it takes 26.8 mL of permanganate solution to titrate it, how much oxalate unknown should the student weigh out in order to use 35.0 mL of permanganate solution?

10. Titrimetric methods that employ silver nitrate as titrant are known as ________ titrations.

A crucial skill when carrying out an accurate titration is the ability to stop the titration at the very first signs of a lasting color change. Recall the discussion of clarity in descriptions of colors as you compare the six solutions shown in the image below. E9 NB Q1 Homework Unanswered Examine the photo above and write your observations of each of the 4 solutions. H E- B iA X, x N. = E 66

7) What is the molarity of a 12.46 mL sulfuric acid solution if 18.22 mL of 0.100 M potassium hydroxide is required to reach the endpoint as indicated by a titration .

15. A 0.10 M solution of a strong monoprotic acid will be standardized using anhydrous sodium carbonate. The desired volume of solution to reach the endpoint is 23.0 mL. How many grams of anhydrous sodium carbonate should be weighed out for each standardization titration? 0.09 0.12 0.122 0.1

help please answer in text form with proper workings and explanation for each and every part and steps with concept and introduction no AI no copy paste remember answer must be in proper format with all working!

Please answer true or false

Please send me the question in 10 minutes it's very urgent plz

A student titrates samples of a base with a standardised acid. The titration values obtained for each sample is given in Figure 5. What is the average titration value in cm³ that the student should use in further calculations? * Your answer

please see attached image. Im trying to calulate moles of HCl the volume I drew was 5.0 the volume titrated bas 8.15.

Drag and drop the terms to label this diagram of a titration apparatus accurately. burette stopcock ●NAAAAIANNI titrant Erlenmeyer flask (tube) (solution) 11 (container) (solution) clamp sample solution

Knowing that the unknown acid is monoprotic and the stoic honesty of this reaction is 1:1, we can determine the moles of acid by titration  A. true  B. false

What happens when a non-standard titrant is used in the titration of an unknown sample?a - The volume of the acid used will not be accurate.b - The normality of the acid used will not be accurate.c - The weight of the analyte will not be accurate.d - It will not matter.

Would adding extra distilled water to the Erlenmeyer flask during the titration affect the calculated molarity of the N a O H solution? Explain.   Question options:   Yes, adding extra water will change the number of moles of acid added.   Yes, adding extra water will change the number of moles of base added.   Yes, adding extra water will change the total volume and thus make the N a O H molarity lower.   No, the added water does not affect the number of moles of N a O H or H C l added and the added water does not affect the volume of H C l or N a O H.

1. What is the color change in this titration? 2. What is the name of the reaction between an acid and a base? 3. Name the acid and base used in the titration. 4. Calculate the molecular mass of NaNO3.

Direction: Choose the best answer. 1. The concentration of the unknown substance in titration is determined by what measure? A. molality B. molarity C. ppm D. ppb 2. By what type of solution can you categorize a solution whose concentration or strength has been correctly established is a standard solution? A. basic B. inorganic C. organic D. standard 3. What is point in titration which it is determined by the use of an indicator which changes color at the desired point? A. Acid point B. basic point C. equivalence D. turning 4. What is being avoided in cleaning the laboratory tools and equipment before using? A. contamination B. errors C. fire D. viruses 5. A burette is used to dispense unknown liquid into the flask. What part of the burette is responsible in stopping the flow of liquid in it? A. funnel B. pinchcock C. nozzle D. opening 6. For any chemical reaction carried out in any manner, the quantity of heat absorbed or evolved by the reaction is…

Would adding extra distilled water to the Erlenmeyer flask during the titration affect the molarity of the NaOH solution? Explain.   Question 1 options:   Yes, adding extra water will change the number of moles of acid added.   Yes, adding extra water will change the number of moles of base added.   Yes, adding extra water will change the total volume and thus make the NaOH molarity lower.   No, the added water does not affect the number of moles of NaOH or HCl added and the added water does not affect the volume of HCl or NaOH.