When performing the titration, it is best to position the tip of the buret: O inside the body of the Erlenmeyer flask. O above the Erlenmeyer flask. O inside the neck of the Erlenmeyer flask. O so that it just touches the bottom of the Erlenmeyer flask.
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- Content ra/courses/_74259_1/cl/outline for.. O 12 Steps of Gamble... m Veterans Portal O*NET OnLine EC Home | exploreheal.. Scholarships - SAL. Patient 3) In Part B of the experiment, what volume of ethyldiamine should you add? 4) Why does adding 95% ethanol to the solution cause the compound to precipitate? pH pre-lab At 1) What are you trying to calculate in part A? What are you trying to calculate in part B? 2) HF is as weak, monoptoric acid with a Ka value of 6.6x104, Calculate the pH of a 0.25 M solution of this acid. 3) If you made a buffer solution of HF and NaF, what would be the conjugate base? 4) If the concentration of HF was 0.15 M and the concentration of NaF was 0,25 M. what would be the pH of the buffer? 5) Write a reaction for the neutralization that would occur if you added a small amount of NaOH to the buffer solution desribed in question 3. Ca(OH)2 pre-lab At 1) What are you using as an indicator in this lab? What color indicates the titration has reached completion?…Write the Ksp expression for the sparingly soluble compound silver cyanide, AgCN. If either the numerator or denominator is 1, please enter 1. Ksp = Submit Answer Retry Entire Group 8 more group attempts remainingHi, I need help creating a line graph in excel for trial 1 only. I need to find the average reaction rates for trial 1 for temperature, pH, and concentration. Picture of excel graph would be appreciated, thank you.
- Pls do Asap...! Pls do que 1 as soon as possibleN History Bookmarks Profiles Tab Window Help 101 Chem101 C Chegg Search O Ella Enchanted Wa. O They Both Die at t. A Request to Withdr.. U Forms | Office of t. KB Viewing Your Aca.. Have Changes n. Scho Question 8.b of 8 [Tutorial: Titration stoichiometry] This question will walk you through the steps of calculating the volume of titrant required to reach the endpoint based on the volume and concentration of analyte. Consider the standardization of NaOH by titration with C HO, according to the following chemical reaction: 3 N2OH(aq) + C,H,0,(aq)= Na C,H,0,(aq) + 3 H,O(1) Step 2: Design a problem-solving strategy. Which equation will be most helpful for solving this problem? A) PV = nRT B) M,V, = M,V, C) pH = -log[H] D) M,V /n, = M,V/n, MacBook Air * ES 24 4. 23 & 2 3. 5 6. 7 8. Y1. Molarity of the NaOH solution 0.238 mol/L Trial 1 Trial 2 Trial 2. Volume of H;PO4 added to flask 22.0 mL 22.0 mL 22.0 mL 3. Initial NaOH volume _0.25_ mL _0.75_ mL 0.55 mL 4. Final NaOH volume 17.60_ mL 18.20_ mL _17.90_ mL 5. NAOH volume used for titration to reach green end point mL mL mL 6. NaOH volume used for titration 7. Moles of NaOH used for titration mol mel mel 8. Moles of H;PO4 that reacted mol mel mol 9. Volume of H;PO4 added to flask L 10. Molarity of H3PO4 mol/L mol/L mol/L
- Date Name Pre- Lab 1. What types of PPE (Personal Protective Equipment) should you wear for this experiment? 2. In your own words what is a precipitate? 3. List 4 observations that you can use to confirm a reaction has occurred.From an experiment on acid-base titration, in the standardization of HCl (Part B), why must the flask be covered with watch glass or inverted beaker? (min. 5 sentences)Topic: Standardization of acid and base with back titration Note: Include up to 4 decimal places Kindly explain the process Thank you!