{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

5 then add naoh in 10 ml aliquots recording naoh

Info icon This preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: deionized water. After adding the NaOH to the flask, thoroughly mix the solution by inverting the flask 10- 15 times. Keep the solution tightly covered. Preparation of the buret 1. Clean a 50- mL buret with soap solution and a burette brush. a. Rinse first with tap water, watching to see if water drains cleanly down the walls, leaving no droplets behind. b. Rinse with distilled water. c. Finally, add two separate ~5- mL samples of NaOH solution to the burette with the stop- cock closed; gently allow it to roll over all surfaces of the internal walls of the burette before letting it to drain out. 2. Mount the burette on a ring- stand using a buret clamp. 3. Fill the buret with the NaOH solution. Record the initial volume. Cover the top with parafilm until ready to use. Split into groups of 2. One pair of students will standardize the NaOH solution by following the procedure below. The other pair of students will titrate the phosphoric acid solution. Each pair of students should do two trials. Then, the groups will switch titrations (the group standardizing the NaOH wil...
View Full Document

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern