{"id":167,"date":"2025-05-29T02:13:54","date_gmt":"2025-05-29T02:13:54","guid":{"rendered":"https:\/\/pressbooks.hccfl.edu\/introchemlabmanual\/?post_type=chapter&#038;p=167"},"modified":"2026-03-28T12:08:17","modified_gmt":"2026-03-28T12:08:17","slug":"post-lab-questions","status":"web-only","type":"chapter","link":"https:\/\/pressbooks.hccfl.edu\/introchemlabmanual\/chapter\/post-lab-questions\/","title":{"raw":"Post-Lab Questions","rendered":"Post-Lab Questions"},"content":{"raw":"<h2>Directions:<\/h2>\r\nAnswer the following questions, show work for all calculations. Work must be shown to receive credit for calculations. All questions are weighted equally.\r\n<ol>\r\n \t<li>What is the difference between the endpoint and the equivalence point in a titration? Are they always the same? Why or why not?<\/li>\r\n \t<li><span class=\"textLayer--absolute\" dir=\"ltr\" role=\"presentation\">Report the three molarities from your experimental trials, your average molarity, &amp; the actual molarity below. <\/span><\/li>\r\n<\/ol>\r\nTrial 1 ____\r\n\r\nTrial 2 ____\r\n\r\nTrial 3 ____\r\n\r\nAverage molarity ___\r\n\r\nActual molarity ____\r\n<ul>\r\n \t<li><span class=\"textLayer--absolute\" dir=\"ltr\" role=\"presentation\">A) Are your experimental results considered precise? Justify.<\/span><\/li>\r\n \t<li>B) Are your experimental results considered accurate? Justify.<\/li>\r\n<\/ul>\r\n3. Suppose you overshot the endpoint (the solution turned deep pink). Would this cause your calculated molarity of NaOH to be too high or too low? Explain why.\r\n\r\n4. Identify one potential error that could have occurred during your experimentation.\r\n\r\n5. How would the identified error above have affected your experimentally determined concentration of NaOH.\r\n<div class=\"textbox\">\r\n<h3><strong>Licenses and Attribution<\/strong><\/h3>\r\n<h4>CC Licensed Content, Original<\/h4>\r\n<span data-teams=\"true\">This educational material includes AI-generated content from ChatGPT by OpenAI. The original content created by Carol Stallworth from Hillsborough Community College is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License (<a id=\"menur5so\" class=\"fui-Link ___1q1shib f2hkw1w f3rmtva f1ewtqcl fyind8e f1k6fduh f1w7gpdv fk6fouc fjoy568 figsok6 f1s184ao f1mk8lai fnbmjn9 f1o700av f13mvf36 f1cmlufx f9n3di6 f1ids18y f1tx3yz7 f1deo86v f1eh06m1 f1iescvh fhgqx19 f1olyrje f1p93eir f1nev41a f1h8hb77 f1lqvz6u f10aw75t fsle3fq f17ae5zn\" title=\"https:\/\/creativecommons.org\/licenses\/by-nc\/4.0\/deed.en\" href=\"https:\/\/creativecommons.org\/licenses\/by-nc\/4.0\/deed.en\" rel=\"noreferrer noopener\" aria-label=\"Link CC BY-NC 4.0\">CC BY-NC 4.0<\/a>).<\/span>\r\n\r\nAll images in this textbook generated with DALL-E are licensed under the terms provided by OpenAI, allowing for their free use, modification, and distribution with appropriate attribution.\r\n\r\n<\/div>\r\n&nbsp;","rendered":"<h2>Directions:<\/h2>\n<p>Answer the following questions, show work for all calculations. Work must be shown to receive credit for calculations. All questions are weighted equally.<\/p>\n<ol>\n<li>What is the difference between the endpoint and the equivalence point in a titration? Are they always the same? Why or why not?<\/li>\n<li><span class=\"textLayer--absolute\" dir=\"ltr\" role=\"presentation\">Report the three molarities from your experimental trials, your average molarity, &amp; the actual molarity below. <\/span><\/li>\n<\/ol>\n<p>Trial 1 ____<\/p>\n<p>Trial 2 ____<\/p>\n<p>Trial 3 ____<\/p>\n<p>Average molarity ___<\/p>\n<p>Actual molarity ____<\/p>\n<ul>\n<li><span class=\"textLayer--absolute\" dir=\"ltr\" role=\"presentation\">A) Are your experimental results considered precise? Justify.<\/span><\/li>\n<li>B) Are your experimental results considered accurate? Justify.<\/li>\n<\/ul>\n<p>3. Suppose you overshot the endpoint (the solution turned deep pink). Would this cause your calculated molarity of NaOH to be too high or too low? Explain why.<\/p>\n<p>4. Identify one potential error that could have occurred during your experimentation.<\/p>\n<p>5. How would the identified error above have affected your experimentally determined concentration of NaOH.<\/p>\n<div class=\"textbox\">\n<h3><strong>Licenses and Attribution<\/strong><\/h3>\n<h4>CC Licensed Content, Original<\/h4>\n<p><span data-teams=\"true\">This educational material includes AI-generated content from ChatGPT by OpenAI. The original content created by Carol Stallworth from Hillsborough Community College is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License (<a id=\"menur5so\" class=\"fui-Link ___1q1shib f2hkw1w f3rmtva f1ewtqcl fyind8e f1k6fduh f1w7gpdv fk6fouc fjoy568 figsok6 f1s184ao f1mk8lai fnbmjn9 f1o700av f13mvf36 f1cmlufx f9n3di6 f1ids18y f1tx3yz7 f1deo86v f1eh06m1 f1iescvh fhgqx19 f1olyrje f1p93eir f1nev41a f1h8hb77 f1lqvz6u f10aw75t fsle3fq f17ae5zn\" title=\"https:\/\/creativecommons.org\/licenses\/by-nc\/4.0\/deed.en\" href=\"https:\/\/creativecommons.org\/licenses\/by-nc\/4.0\/deed.en\" rel=\"noreferrer noopener\" aria-label=\"Link CC BY-NC 4.0\">CC BY-NC 4.0<\/a>).<\/span><\/p>\n<p>All images in this textbook generated with DALL-E are licensed under the terms provided by OpenAI, allowing for their free use, modification, and distribution with appropriate attribution.<\/p>\n<\/div>\n<p>&nbsp;<\/p>\n","protected":false},"author":125,"menu_order":4,"template":"","meta":{"pb_show_title":"on","pb_short_title":"","pb_subtitle":"","pb_authors":[],"pb_section_license":""},"chapter-type":[],"contributor":[],"license":[],"class_list":["post-167","chapter","type-chapter","status-web-only","hentry"],"part":144,"_links":{"self":[{"href":"https:\/\/pressbooks.hccfl.edu\/introchemlabmanual\/wp-json\/pressbooks\/v2\/chapters\/167","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pressbooks.hccfl.edu\/introchemlabmanual\/wp-json\/pressbooks\/v2\/chapters"}],"about":[{"href":"https:\/\/pressbooks.hccfl.edu\/introchemlabmanual\/wp-json\/wp\/v2\/types\/chapter"}],"author":[{"embeddable":true,"href":"https:\/\/pressbooks.hccfl.edu\/introchemlabmanual\/wp-json\/wp\/v2\/users\/125"}],"version-history":[{"count":15,"href":"https:\/\/pressbooks.hccfl.edu\/introchemlabmanual\/wp-json\/pressbooks\/v2\/chapters\/167\/revisions"}],"predecessor-version":[{"id":1015,"href":"https:\/\/pressbooks.hccfl.edu\/introchemlabmanual\/wp-json\/pressbooks\/v2\/chapters\/167\/revisions\/1015"}],"part":[{"href":"https:\/\/pressbooks.hccfl.edu\/introchemlabmanual\/wp-json\/pressbooks\/v2\/parts\/144"}],"metadata":[{"href":"https:\/\/pressbooks.hccfl.edu\/introchemlabmanual\/wp-json\/pressbooks\/v2\/chapters\/167\/metadata\/"}],"wp:attachment":[{"href":"https:\/\/pressbooks.hccfl.edu\/introchemlabmanual\/wp-json\/wp\/v2\/media?parent=167"}],"wp:term":[{"taxonomy":"chapter-type","embeddable":true,"href":"https:\/\/pressbooks.hccfl.edu\/introchemlabmanual\/wp-json\/pressbooks\/v2\/chapter-type?post=167"},{"taxonomy":"contributor","embeddable":true,"href":"https:\/\/pressbooks.hccfl.edu\/introchemlabmanual\/wp-json\/wp\/v2\/contributor?post=167"},{"taxonomy":"license","embeddable":true,"href":"https:\/\/pressbooks.hccfl.edu\/introchemlabmanual\/wp-json\/wp\/v2\/license?post=167"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}