{"id":96,"date":"2022-07-13T17:38:33","date_gmt":"2022-07-13T17:38:33","guid":{"rendered":"https:\/\/books.gw-project.org\/fluoride-in-groundwater\/chapter\/solution-exercise-4\/"},"modified":"2022-07-18T00:11:29","modified_gmt":"2022-07-18T00:11:29","slug":"solution-exercise-4","status":"publish","type":"chapter","link":"https:\/\/books.gw-project.org\/fluoride-in-groundwater\/chapter\/solution-exercise-4\/","title":{"raw":"Solution Exercise 4","rendered":"Solution Exercise 4"},"content":{"raw":"<div class=\"solution-exercise-4\">\r\n<p class=\"import-Normal\">Dissolution reaction for fluorapatite:<\/p>\r\n<p class=\"import-Normal\" style=\"text-align: center;\">Ca<sub>5<\/sub>(PO<sub>4<\/sub>)<sub>3<\/sub>F = 5Ca<sup>2+<\/sup> + 3PO<sub>4<\/sub><sup>3\u2212<\/sup> + F<sup>\u2212<\/sup><\/p>\r\n<p class=\"import-Normal\">the ion-activity product is:<\/p>\r\n<p class=\"import-Normal\" style=\"text-align: center;\">[latex]\\displaystyle a_{Ca^{2+}}^{5}a_{PO_{4}^{3-}}^{3}a_{F^{-}}=\\left ( 3.895 \\times 10^{-5} \\right )^{5}\\left ( 3.065\\times 10^{-10} \\right )^{3}\\left ( 2.009\\times 10^{-4} \\right )=10^{-54.28}[\/latex]<\/p>\r\n<p class=\"import-Normal\" style=\"text-align: center;\">log <em>K<\/em><sub><em>sp<\/em><\/sub> = \u221255.1<\/p>\r\n<p class=\"import-Normal\" style=\"text-align: center;\">[latex]\\displaystyle SI=\\mathrm{log}\\frac{10^{-54.28}}{10^{-55.1}}=0.82[\/latex]<\/p>\r\n<p class=\"import-Normal\">The solution is oversaturated with respect to fluorapatite.<\/p>\r\n<p class=\"import-Normal\" style=\"text-align: right;\"><a href=\"https:\/\/books.gw-project.org\/fluoride-in-groundwater\/chapter\/exercise-4\/\">Return to Exercise 4<\/a><\/p>\r\n\r\n<\/div>","rendered":"<div class=\"solution-exercise-4\">\n<p class=\"import-Normal\">Dissolution reaction for fluorapatite:<\/p>\n<p class=\"import-Normal\" style=\"text-align: center;\">Ca<sub>5<\/sub>(PO<sub>4<\/sub>)<sub>3<\/sub>F = 5Ca<sup>2+<\/sup> + 3PO<sub>4<\/sub><sup>3\u2212<\/sup> + F<sup>\u2212<\/sup><\/p>\n<p class=\"import-Normal\">the ion-activity product is:<\/p>\n<p class=\"import-Normal\" style=\"text-align: center;\">[latex]\\displaystyle a_{Ca^{2+}}^{5}a_{PO_{4}^{3-}}^{3}a_{F^{-}}=\\left ( 3.895 \\times 10^{-5} \\right )^{5}\\left ( 3.065\\times 10^{-10} \\right )^{3}\\left ( 2.009\\times 10^{-4} \\right )=10^{-54.28}[\/latex]<\/p>\n<p class=\"import-Normal\" style=\"text-align: center;\">log <em>K<\/em><sub><em>sp<\/em><\/sub> = \u221255.1<\/p>\n<p class=\"import-Normal\" style=\"text-align: center;\">[latex]\\displaystyle SI=\\mathrm{log}\\frac{10^{-54.28}}{10^{-55.1}}=0.82[\/latex]<\/p>\n<p class=\"import-Normal\">The solution is oversaturated with respect to fluorapatite.<\/p>\n<p class=\"import-Normal\" style=\"text-align: right;\"><a href=\"https:\/\/books.gw-project.org\/fluoride-in-groundwater\/chapter\/exercise-4\/\">Return to Exercise 4<\/a><\/p>\n<\/div>\n","protected":false},"author":1,"menu_order":43,"template":"","meta":{"pb_show_title":"on","pb_short_title":"","pb_subtitle":"","pb_authors":[],"pb_section_license":""},"chapter-type":[],"contributor":[],"license":[],"class_list":["post-96","chapter","type-chapter","status-publish","hentry"],"part":172,"_links":{"self":[{"href":"https:\/\/books.gw-project.org\/fluoride-in-groundwater\/wp-json\/pressbooks\/v2\/chapters\/96","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/books.gw-project.org\/fluoride-in-groundwater\/wp-json\/pressbooks\/v2\/chapters"}],"about":[{"href":"https:\/\/books.gw-project.org\/fluoride-in-groundwater\/wp-json\/wp\/v2\/types\/chapter"}],"author":[{"embeddable":true,"href":"https:\/\/books.gw-project.org\/fluoride-in-groundwater\/wp-json\/wp\/v2\/users\/1"}],"version-history":[{"count":6,"href":"https:\/\/books.gw-project.org\/fluoride-in-groundwater\/wp-json\/pressbooks\/v2\/chapters\/96\/revisions"}],"predecessor-version":[{"id":338,"href":"https:\/\/books.gw-project.org\/fluoride-in-groundwater\/wp-json\/pressbooks\/v2\/chapters\/96\/revisions\/338"}],"part":[{"href":"https:\/\/books.gw-project.org\/fluoride-in-groundwater\/wp-json\/pressbooks\/v2\/parts\/172"}],"metadata":[{"href":"https:\/\/books.gw-project.org\/fluoride-in-groundwater\/wp-json\/pressbooks\/v2\/chapters\/96\/metadata\/"}],"wp:attachment":[{"href":"https:\/\/books.gw-project.org\/fluoride-in-groundwater\/wp-json\/wp\/v2\/media?parent=96"}],"wp:term":[{"taxonomy":"chapter-type","embeddable":true,"href":"https:\/\/books.gw-project.org\/fluoride-in-groundwater\/wp-json\/pressbooks\/v2\/chapter-type?post=96"},{"taxonomy":"contributor","embeddable":true,"href":"https:\/\/books.gw-project.org\/fluoride-in-groundwater\/wp-json\/wp\/v2\/contributor?post=96"},{"taxonomy":"license","embeddable":true,"href":"https:\/\/books.gw-project.org\/fluoride-in-groundwater\/wp-json\/wp\/v2\/license?post=96"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}