{"presentation":{"slides":[{"elements":[{"x":25.45968882602546,"y":25.139664804469273,"width":42.43281471004243,"height":50.55865921787709,"action":{"library":"H5P.AdvancedText 1.1","params":{"text":"

BUFFERED Solutions: Summarizing Basic Properties and Characteristics of Buffers<\/span><\/span><\/span><\/span><\/p>\n"},"subContentId":"d7e6e7de-d0cb-46b1-bad1-f04939f0ace6","metadata":{"contentType":"Text","license":"U","title":"Untitled Text"}},"alwaysDisplayComments":false,"backgroundOpacity":0,"displayAsButton":false,"buttonSize":"big","goToSlideType":"specified","invisible":false,"solution":""}],"slideBackgroundSelector":{}},{"elements":[{"x":4.243281471004243,"y":13.966480446927374,"width":91.93776520509194,"height":67.0391061452514,"action":{"library":"H5P.AdvancedText 1.1","params":{"text":"Definition: <\/span><\/span><\/span><\/span><\/span><\/span><\/span>\n\n

A buffer is a solution that can resist dramatic changes in pH when an acid or base is added to the solution. It is able to neutralize small amounts of added acid or base; thus, maintaining the pH of the solution and keeping it relatively stable.<\/span><\/span><\/span><\/span><\/p>\n"},"subContentId":"d59a3423-0e4b-491e-8f49-a13a24f4b931","metadata":{"contentType":"Text","license":"U","title":"Untitled Text"}},"alwaysDisplayComments":false,"backgroundOpacity":0,"displayAsButton":false,"buttonSize":"big","goToSlideType":"specified","invisible":false,"solution":""}],"slideBackgroundSelector":{}},{"elements":[{"x":9.903521923620934,"y":13.95650837988827,"width":77.7934936350778,"height":69.83240223463687,"action":{"library":"H5P.TrueFalse 1.8","params":{"media":{"disableImageZooming":false},"correct":"false","behaviour":{"enableRetry":true,"enableSolutionsButton":true,"enableCheckButton":true,"confirmCheckDialog":false,"confirmRetryDialog":false,"autoCheck":false},"l10n":{"trueText":"True","falseText":"False","score":"You got @score of @total points","checkAnswer":"Check","showSolutionButton":"Show solution","tryAgain":"Retry","wrongAnswerMessage":"Wrong answer","correctAnswerMessage":"Correct answer","scoreBarLabel":"You got :num out of :total points","a11yCheck":"Check the answers. The responses will be marked as correct, incorrect, or unanswered.","a11yShowSolution":"Show the solution. The task will be marked with its correct solution.","a11yRetry":"Retry the task. Reset all responses and start the task over again.","submitAnswer":"Submit"},"confirmCheck":{"header":"Finish ?","body":"Are you sure you wish to finish ?","cancelLabel":"Cancel","confirmLabel":"Finish"},"confirmRetry":{"header":"Retry ?","body":"Are you sure you wish to retry ?","cancelLabel":"Cancel","confirmLabel":"Confirm"},"question":"

A buffer cannot neutralize small amounts of added acid or base; thus, the pH of the solution will increase or decrease drastically.<\/p>\n"},"subContentId":"eb091917-c97b-4b52-a74c-c5dbf41e6e12","metadata":{"contentType":"True\/False Question","license":"U","title":"Untitled True\/False Question"}},"alwaysDisplayComments":false,"backgroundOpacity":0,"displayAsButton":false,"buttonSize":"big","goToSlideType":"specified","invisible":false,"solution":""}],"slideBackgroundSelector":{}},{"elements":[{"x":2.828854314002829,"y":2.7858128491620113,"width":94.76661951909476,"height":92.17877094972067,"action":{"library":"H5P.AdvancedText 1.1","params":{"text":"Qualities of a Good Buffer:<\/span><\/span><\/span><\/span><\/span><\/span>\n\n

A buffer is a water-based solution containing a mixture of either:<\/span><\/span><\/span><\/span><\/span>\n\n\t
\n\t\t
an WEAK acid and its STRONG conjugate base OR<\/strong><\/span><\/span><\/span><\/span><\/span><\/li>\n\t<\/ul>\n\t<\/li>\n\t
\n\t
\n\t\t
a WEAK base and its STRONG conjugate acid<\/span><\/span><\/span><\/span><\/span><\/li>\n\t<\/ul>\n\t<\/li>\n\t
Buffers are very good at resisting changes in pH:<\/span><\/span><\/span><\/span><\/span>\n\t
\n\t\t
when a small amount of a strong acid or base is added, the pH doesn't change significantly; the pH remains steady within a narrow range<\/span><\/span><\/span><\/span><\/span><\/li>\n\t<\/ul>\n\t<\/li>\n\t
Good buffers have a high solubility in water. <\/span><\/span><\/span><\/span><\/span>\n\t
\n\t\t
WATER is NOT a buffered solution<\/span><\/span><\/span><\/span><\/span><\/li>\n\t<\/ul>\n\t<\/li>\n\t
Good buffers will have LOW solubility levels in organic solvents such as fats and oils. <\/span><\/span><\/span><\/span><\/span><\/li>\n<\/ul>\n"},"subContentId":"5bc24380-3c9a-441d-8cf1-17c61de6420b","metadata":{"contentType":"Text","license":"U","title":"Untitled Text"}},"alwaysDisplayComments":false,"backgroundOpacity":0,"displayAsButton":false,"buttonSize":"big","goToSlideType":"specified","invisible":false,"solution":""}],"slideBackgroundSelector":{}},{"elements":[{"x":2.828854314002829,"y":2.793296089385475,"width":94.76661951909476,"height":92.17877094972067,"action":{"library":"H5P.AdvancedText 1.1","params":{"text":"
Qualities of a Good Buffer Continued:<\/span><\/span><\/span><\/span><\/span><\/span><\/p>\n\n
\n\t
A weak acid can work as a buffer since it DOES NOT completely ionize\/dissociate when dissolved in water (so the pH does NOT notably fluctuate)<\/span><\/span><\/span><\/span><\/li>\n<\/ul>\n\n
whereas,<\/span><\/span><\/span><\/span><\/p>\n\n
\n\t
a STRONG acid CANNOT be a buffer because it completely dissociates and ionizes in water (quickly lowering the pH of the solution)<\/span><\/span><\/span><\/span><\/li>\n<\/ul>\n\n
ALSO<\/span><\/span><\/span><\/span><\/p>\n\n
\n\t
A weak base can work as a buffer since it DOES NOT completely ionize\/dissociate when dissolved in water (so the pH does NOT notably fluctuate); <\/span><\/span><\/span><\/span><\/li>\n<\/ul>\n\n
whereas, <\/span><\/span><\/span><\/span><\/p>\n\n
\n\t
a STRONG base CANNOT be a buffer because it completely dissociates and ionizes in water (quickly raising the pH of the solution)<\/span><\/span><\/span><\/span><\/li>\n<\/ul>\n"},"subContentId":"5bc24380-3c9a-441d-8cf1-17c61de6420b","metadata":{"contentType":"Text","license":"U","title":"Untitled Text"}},"alwaysDisplayComments":false,"backgroundOpacity":0,"displayAsButton":false,"buttonSize":"big","goToSlideType":"specified","invisible":false,"solution":""}],"slideBackgroundSelector":{}},{"elements":[{"x":2.828854314002829,"y":5.58659217877095,"width":94.76661951909476,"height":83.79888268156425,"action":{"library":"H5P.MultiChoice 1.16","params":{"media":{"disableImageZooming":false},"answers":[{"correct":false,"tipsAndFeedback":{"tip":"","chosenFeedback":"","notChosenFeedback":""},"text":"
\nA buffer is a water-based solution containing a mixture of either\u200b a WEAK acid and its STRONG conjugate base OR a WEAK base and its STRONG conjugate acid\n<\/div>\n"},{"correct":false,"tipsAndFeedback":{"tip":"","chosenFeedback":"","notChosenFeedback":""},"text":"
A buffer is a solution that can resist dramatic changes in pH. It is able to neutralize small amounts of added acid or base, keeping the pH relatively stable<\/div>\n"},{"correct":true,"tipsAndFeedback":{"tip":"","chosenFeedback":"","notChosenFeedback":""},"text":"
water is considered a buffer<\/div>\n"},{"correct":false,"tipsAndFeedback":{"tip":"","chosenFeedback":"","notChosenFeedback":""},"text":"
weak acids and weak bases can be buffers since they do NOT completing dissociate when dissolved in water and thus pH stays relatively the same<\/div>\n"}],"overallFeedback":[{"from":0,"to":100}],"behaviour":{"enableRetry":true,"enableSolutionsButton":true,"enableCheckButton":true,"type":"auto","singlePoint":false,"randomAnswers":true,"showSolutionsRequiresInput":true,"confirmCheckDialog":false,"confirmRetryDialog":false,"autoCheck":false,"passPercentage":100,"showScorePoints":true},"UI":{"checkAnswerButton":"Check","showSolutionButton":"Show solution","tryAgainButton":"Retry","tipsLabel":"Show tip","scoreBarLabel":"You got :num out of :total points","tipAvailable":"Tip available","feedbackAvailable":"Feedback available","readFeedback":"Read feedback","wrongAnswer":"Wrong answer","correctAnswer":"Correct answer","shouldCheck":"Should have been checked","shouldNotCheck":"Should not have been checked","noInput":"Please answer before viewing the solution","a11yCheck":"Check the answers. The responses will be marked as correct, incorrect, or unanswered.","a11yShowSolution":"Show the solution. The task will be marked with its correct solution.","a11yRetry":"Retry the task. Reset all responses and start the task over again.","submitAnswerButton":"Submit"},"confirmCheck":{"header":"Finish ?","body":"Are you sure you wish to finish ?","cancelLabel":"Cancel","confirmLabel":"Finish"},"confirmRetry":{"header":"Retry ?","body":"Are you sure you wish to retry ?","cancelLabel":"Cancel","confirmLabel":"Confirm"},"question":"
All of the following is TRUE about buffers except:<\/p>\n"},"subContentId":"1e66e1ba-f249-45bf-b6bf-7b55296ef822","metadata":{"contentType":"Multiple Choice","license":"U","title":"Buffers 1 Multiple Choice"}},"alwaysDisplayComments":false,"backgroundOpacity":0,"displayAsButton":false,"buttonSize":"big","goToSlideType":"specified","invisible":false,"solution":""}],"slideBackgroundSelector":{}},{"elements":[{"x":1.4144271570014144,"y":2.793296089385475,"width":98.58557284299859,"height":94.97206703910615,"action":{"library":"H5P.Video 1.6","params":{"visuals":{"fit":true,"controls":true},"playback":{"autoplay":false,"loop":false},"l10n":{"name":"Video","loading":"Video player loading...","noPlayers":"Found no video players that supports the given video format.","noSources":"Video is missing sources.","aborted":"Media playback has been aborted.","networkFailure":"Network failure.","cannotDecode":"Unable to decode media.","formatNotSupported":"Video format not supported.","mediaEncrypted":"Media encrypted.","unknownError":"Unknown error.","invalidYtId":"Invalid YouTube ID.","unknownYtId":"Unable to find video with the given YouTube ID.","restrictedYt":"The owner of this video does not allow it to be embedded."},"sources":[{"path":"videos\/sources-609d6ba71ae79.mp4","mime":"video\/mp4","copyright":{"license":"U"}}]},"subContentId":"88866ccb-c40e-4cdd-8712-ca1f3f384106","metadata":{"contentType":"Video","license":"U","title":"Example of Buffer Video"}},"alwaysDisplayComments":false,"backgroundOpacity":0,"displayAsButton":false,"buttonSize":"big","goToSlideType":"specified","invisible":false,"solution":""}],"slideBackgroundSelector":{}},{"elements":[{"x":1.4144271570014144,"y":2.793296089385475,"width":97.59547383309759,"height":92.17877094972067,"action":{"library":"H5P.DragQuestion 1.14","params":{"scoreShow":"Check","tryAgain":"Retry","scoreExplanation":"Correct answers give +1 point. Incorrect answers give -1 point. The lowest possible score is 0.","question":{"settings":{"size":{"width":620,"height":310}},"task":{"elements":[{"x":0,"y":51.61290322580645,"width":11.70022375,"height":3.57522375,"dropZones":["0","1"],"type":{"library":"H5P.AdvancedText 1.1","params":{"text":"
A weak base DOES NOT completely ionize\/dissociate when dissolved in water<\/span><\/span><\/span><\/span><\/p>\n"},"subContentId":"1f292835-1ea1-4a81-911a-b466ed73efd2","metadata":{"contentType":"Text","license":"U","title":"Untitled Text"}},"backgroundOpacity":100,"multiple":false},{"x":27.419354838709676,"y":77.41935483870968,"width":13.57522375,"height":2.95022375,"dropZones":["0","1"],"type":{"library":"H5P.AdvancedText 1.1","params":{"text":"
a STRONG base will completely dissociate and ionize in water (providing a high pH)<\/span><\/span><\/span><\/span><\/p>\n"},"metadata":{"contentType":"Text","license":"U","title":"Untitled Text"},"subContentId":"983a6e8d-6dfc-4e3c-842b-1e7510d43ce7"},"backgroundOpacity":100,"multiple":false},{"x":33.87096774193548,"y":51.61290322580645,"width":12.32522375,"height":3.57522375,"dropZones":["0","1"],"type":{"library":"H5P.AdvancedText 1.1","params":{"text":"
Good buffers will have HIGH solubility levels in organic solvents such as fats and oils and LOW solubility in water.<\/span><\/span><\/span><\/p>\n"},"metadata":{"contentType":"Text","license":"U","title":"Untitled Text"},"subContentId":"c7b4a7f6-2bcc-41ef-98fa-ed845cc74714"},"backgroundOpacity":100,"multiple":false},{"x":0,"y":77.41935483870968,"width":8.57522375,"height":2.95022375,"dropZones":["0","1"],"type":{"library":"H5P.AdvancedText 1.1","params":{"text":"
Buffers are NOT effective at resisting changes in pH:<\/span><\/p>\n"},"metadata":{"contentType":"Text","license":"U","title":"Untitled Text"},"subContentId":"1366c4b3-e159-4d8a-9f53-b6a05eae4bed"},"backgroundOpacity":100,"multiple":false},{"x":67.74193548387096,"y":80.64516129032258,"width":10.45022375,"height":2.32522375,"dropZones":["0","1"],"type":{"library":"H5P.AdvancedText 1.1","params":{"text":"
A buffer can neutralize small amounts of added acid or base<\/span><\/p>\n"},"metadata":{"contentType":"Text","license":"U","title":"Untitled Text"},"subContentId":"7b62e14d-2a03-4d45-99b2-721ce31c7258"},"backgroundOpacity":100,"multiple":false},{"x":69.35483870967742,"y":51.61290322580645,"width":11.07522375,"height":4.20022375,"dropZones":["0","1"],"type":{"library":"H5P.AdvancedText 1.1","params":{"text":"
An example of a buffer is the weak acid (acetic acid) with its STRONG conjugate base (acetate)<\/span><\/p>\n"},"metadata":{"contentType":"Text","license":"U","title":"Untitled Text"},"subContentId":"ae2be6f9-0f29-43b5-b8d1-60f7b98e1b3a"},"backgroundOpacity":100,"multiple":false}],"dropZones":[{"x":0,"y":6.451612903225806,"width":18.125,"height":8.75,"correctElements":["1","4","5","0"],"showLabel":true,"backgroundOpacity":100,"tipsAndFeedback":{"tip":""},"single":false,"autoAlign":false,"label":"
TRUE<\/div>\n"},{"x":50.000004922190016,"y":6.451612903225806,"width":19.374998092651367,"height":8.75,"correctElements":["2","3"],"showLabel":true,"backgroundOpacity":100,"tipsAndFeedback":{"tip":""},"single":false,"autoAlign":false,"label":"
FALSE<\/div>\n"}]}},"overallFeedback":[{"from":0,"to":100}],"behaviour":{"enableRetry":true,"enableCheckButton":true,"singlePoint":false,"applyPenalties":true,"enableScoreExplanation":true,"dropZoneHighlighting":"dragging","autoAlignSpacing":2,"enableFullScreen":false,"showScorePoints":true,"showTitle":true},"grabbablePrefix":"Grabbable {num} of {total}.","grabbableSuffix":"Placed in dropzone {num}.","dropzonePrefix":"Dropzone {num} of {total}.","noDropzone":"No dropzone.","tipLabel":"Show tip.","tipAvailable":"Tip available","correctAnswer":"Correct answer","wrongAnswer":"Wrong answer","feedbackHeader":"Feedback","scoreBarLabel":"You got :num out of :total points","scoreExplanationButtonLabel":"Show score explanation","a11yCheck":"Check the answers. The responses will be marked as correct, incorrect, or unanswered.","a11yRetry":"Retry the task. Reset all responses and start the task over again.","localize":{"fullscreen":"Fullscreen","exitFullscreen":"Exit fullscreen"},"submit":"Submit"},"subContentId":"215692b2-53ff-4e3f-8334-0076ace4297a","metadata":{"contentType":"Drag and Drop","license":"U","title":"TRUE or FALSE about buffers Drag and Drop"}},"alwaysDisplayComments":false,"backgroundOpacity":0,"displayAsButton":false,"buttonSize":"big","goToSlideType":"specified","invisible":false,"solution":""}],"slideBackgroundSelector":{}}],"keywordListEnabled":true,"globalBackgroundSelector":{},"keywordListAlwaysShow":false,"keywordListAutoHide":false,"keywordListOpacity":90},"override":{"activeSurface":false,"hideSummarySlide":false,"summarySlideSolutionButton":true,"summarySlideRetryButton":true,"enablePrintButton":false,"social":{"showFacebookShare":false,"facebookShare":{"url":"@currentpageurl","quote":"I scored @score out of @maxScore on a task at @currentpageurl."},"showTwitterShare":false,"twitterShare":{"statement":"I scored @score out of @maxScore on a task at @currentpageurl.","url":"@currentpageurl","hashtags":"h5p, course"},"showGoogleShare":false,"googleShareUrl":"@currentpageurl"}},"l10n":{"slide":"Slide","score":"Score","yourScore":"Your Score","maxScore":"Max Score","total":"Total","totalScore":"Total Score","showSolutions":"Show solutions","retry":"Retry","exportAnswers":"Export text","hideKeywords":"Hide sidebar navigation menu","showKeywords":"Show sidebar navigation menu","fullscreen":"Fullscreen","exitFullscreen":"Exit fullscreen","prevSlide":"Previous slide","nextSlide":"Next slide","currentSlide":"Current slide","lastSlide":"Last slide","solutionModeTitle":"Exit solution mode","solutionModeText":"Solution Mode","summaryMultipleTaskText":"Multiple tasks","scoreMessage":"You achieved:","shareFacebook":"Share on Facebook","shareTwitter":"Share on Twitter","shareGoogle":"Share on Google+","summary":"Summary","solutionsButtonTitle":"Show comments","printTitle":"Print","printIngress":"How would you like to print this presentation?","printAllSlides":"Print all slides","printCurrentSlide":"Print current slide","noTitle":"No title","accessibilitySlideNavigationExplanation":"Use left and right arrow to change slide in that direction whenever canvas is selected.","accessibilityCanvasLabel":"Presentation canvas. Use left and right arrow to move between slides.","containsNotCompleted":"@slideName contains not completed interaction","containsCompleted":"@slideName contains completed interaction","slideCount":"Slide @index of @total","containsOnlyCorrect":"@slideName only has correct answers","containsIncorrectAnswers":"@slideName has incorrect answers","shareResult":"Share Result","accessibilityTotalScore":"You got @score of @maxScore points in total","accessibilityEnteredFullscreen":"Entered fullscreen","accessibilityExitedFullscreen":"Exited fullscreen","confirmDialogHeader":"Submit your answers","confirmDialogText":"This will submit your results, do you want to continue?","confirmDialogConfirmText":"Submit and see results"}}

Learn the Basics about Buffers

Jackie MacDonald