Rinse the Buret

This video is owned by the Journal of Chemical Education. Copyright © ACS Division of Chemical Education, Inc. Only subscribers to JCE Web Software can view this video. Allowed uses

Summary

The buret is rinsed three times with small portions of titrant. The 15 thumbnail images summarize the content of the video. Click an image to see the image gallery.

Narration

Now we are ready to rinse the buret with our titrant, sodium hydroxide. Note that a funnel is used to prevent spilling the titrant. To conserve titrant, we rinse with small portions. We perform a titrant rinse three times to remove any deionized water left in the buret.

Thoroughly rinse the internal buret walls by holding the buret on its side and rolling it. Rinse the buret tip by holding the buret over a waste container or sink and allowing all the liquid to pass through the tip. Remove the last drop and continue to do a second and third rinse.

Discussion

Using a funnel to add titrant to a buret is frowned upon by some chemists. Removing the buret from its buret holder, and pouring directly from the titrant bottle to the buret is an alternative. Student should follow the local directions.

The titrant bottle should be kept capped when not in use. This is especially important for sodium hydroxide solutions. Sodium hydroxide in solution will react with atmospheric carbon dioxide resulting in a decrease in the sodium hydroxide concentration.

Keywords

Applications of Chemistry | Laboratory Equipment / Apparatus | Quantitative Analysis | Titration / Volumetric Analysis

These ChemEd DL Resource Groups Include This Video

A Complete Acid-Base Titration
Titration
Measuring
A Complete Acid-Base Titration
Quantitative Acid-Base Titration
Quantitative Techniques in Volumetric Analysis

Embedding Video in Learning Materials

The ChemEd DL encourages you to include this high-quality video in learning materials you create. We provide means to embed the video in a Web page, in a wiki, or in an online course using a course-management system. (If you want to include the video in another kind of learning material, contact us.)

If you create learning materials and make them available through the ChemEd DL, all of our videos may be freely used. For example, you can embed any video into the ChemPRIME wiki, or an online course on the ChemEd Moodle Courses site. For more information about developing resources at ChemEd DL, click here.

Allowed Uses

This video is owned by the Journal of Chemical Education and copyrighted by the ACS Division of Chemical Education, Inc. All rights reserved. To use the video in your materials at your own institution, you must be a subscriber to JCE Web Software. Subscribe as an individual or an institution at the JCE Online Store.

Individual subscribers are permitted to incorporate video into PowerPoint or other multimedia presentations or into lessons written in HTML, provided the presentations or lessons are restricted to the subscriber’s own class (lecture presentation or course management system where only enrolled students have access). Through an institutional subscription the video becomes available for viewing by any student using a computer within the institution’s range of IP addresses. A student could also incorporate video into a report or presentation and the video would play from computers at the student’s own institution.

Attribution

When this video is incorporated into other materials, this attribution should be present: Video from JCE Web Software, Chemistry Comes Alive!. Copyright ACS Division of Chemical Education, Inc. Used with permission.

WebPage/Iframe

In the box below is HTML code to embed this video into your own Web page. Copy the code and paste it into your Web page code.

ChemPRIME/MediaWiki

ChemPRIME project is a full general chemistry textbook available online through the ChemEd DL. We seek collaborators to add exemplars to ChemPRIME that describe chemistry topics within various contexts, such as biological science, food chemistry, and everyday life. ChemPRIME is built using MediaWiki (the same platform used to build Wikipedia). ChemEd DL encourages users to add ChemEd DL videos to their own exemplars. MediaWiki does not allow full HTML code to be inserted, so the ChemEd DL community has created a MediaWiki extension that enables embedding videos. The extension is installed in ChemPRIME, so the code below allows you to add this video to a ChemPRIME page. More information is at ChemPRIME Help:Media. Contact us if you would like to use this MediaWiki extension on your own wiki.

ChemEd Courses/Moodle

ChemEd Courses is the ChemEd DL's Moodle course management system. Users can manage their own courses, or develop learning resources in Moodle to share with the community. Moodle does not allow full HTML code to be inserted, so the ChemEd DL community has created a Moodle extension that enables embedding videos. The extension is installed in ChemEd Courses, so the code below allows you to add this video to a course in ChemEd Courses. If you would like to use this Moodle extension within your own Moodle installation, contact us.

ChemPaths/Drupal

ChemPaths is the ChemEd DL's Drupal-powered integrated online textbook. Students can explore a full online textbook or other learning pathways. Instructors can sign-up to build their own pathways through course material. Drupal does not allow full HTML code to be inserted, so the ChemEd DL community has created a Drupal extension that enables embedding videos. The extension is installed in ChemPaths (currently in beta-testing), so the code below allows you to add this video to a course in a pathway. If you would like to use this Drupal extension within your own Drupal installation, contact us.

 Access to this video is restricted to JCE Web Software subscribers. To subscribe, either as an individual or an institution, visit the JCE Online Store.