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< h4 class ="incanvas "> Objective:</ h4 >
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< p class ="incanvas " style ="font-size:14px; "> To determine the pH value of given solutions using pH meter.</ p > < br />
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< h4 class ="incanvas "> Apparatus used:</ h4 >
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- < p class ="incanvas " style ="font-size:14px; "> pH meter, Electrodes </ p > </ br >
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+ < p class ="incanvas " style ="font-size:14px; "> pH meter, Electrode, Temperature probe. </ p > </ br >
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< span class ="tooltip " style ="border-bottom:1px dotted ; color:red; position:absolute; top:140px; text-align:justify; "> < strong > Description</ strong >
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< span class ="tooltiptext " style ="font-size:14px; "> < strong style ="color:red; "> pH</ strong > is a term used to express the intensity of the acid or alkaline condition of a solution. It is a measure of the hydrogen ion activity in the solution.</ span > </ span >
@@ -145,11 +145,11 @@ <h1 id="2-1" style="position:absolute; left:155px; top:250px; color:grey; displa
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< div class ="simsubscreen " id ="canvas3 " style ="visibility:hidden; ">
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< strong class ="incanvas "> STEP</ strong >
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< span class ="circlebg "> 1 </ span >
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- < p class ="steptext "> Clean the electrode with the distilled water and dry it using tissue paper.</ p >
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+ < p class ="steptext "> Clean the electrode and temperature probe with the distilled water and dry it using tissue paper.</ p >
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<!-- tissue -->
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< img id ="3-7b " style ="position:absolute; left:400.5px; top:174px; visibility:hidden; " src ="images/t2.png " />
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<!-- Electrode -->
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- < img id ="3-1b " style ="position:absolute; left:135px; top:155px; transform:rotate(-15deg); " title ="Electrode " src ="images/electrode.png " />
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+ < img id ="3-1b " style ="position:absolute; left:135px; top:155px; transform:rotate(-15deg); " title ="Temperature probe " src ="images/electrode.png " />
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< img id ="3-1a " style ="position:absolute; left:130px; top:160px; transform:rotate(-15deg); " title ="Electrode " src ="images/electrode.png " />
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<!-- tissue -->
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< img id ="3-7a " style ="position:absolute; left:400px; top:181px; visibility:hidden; " src ="images/t1.png " />
@@ -163,7 +163,7 @@ <h1 id="2-1" style="position:absolute; left:155px; top:250px; color:grey; displa
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< div style ="position:absolute; left:170px; top:350px; border:1px solid black; padding:3px; background-color:#ffffff; font-size:14px; "> Waste</ div >
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< span id ="note3-1 " style ="position:absolute; left:300px; top:250px; text-align:center; padding:10px; visibility:hidden; border:1px solid black; background-color:black; border-radius:5px; ">
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- < p style ="color:white; font-size:15px; " > Dry the electrodes using tissue paper.</ p >
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+ < p style ="color:white; font-size:15px; " > Dry the electrode and temperature probe using tissue paper.</ p >
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< input id ="b3-1 " type ="button " style ="float:right; " value ="OK " />
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</ span >
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</ div >
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< div class ="simsubscreen " id ="canvas4 " style ="visibility:hidden; ">
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< strong class ="incanvas "> STEP</ strong >
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< span class ="circlebg "> 2 </ span >
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- < p class ="steptext "> Dip the combined electrode in the buffer solution of pH value 4 .</ p >
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+ < p class ="steptext "> Dip the electrode and temperature probe in the buffer solution of pH value 7 .</ p >
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< img style ="position:absolute; left:106px; top:75px; " title ="pHmeter " src ="images/pHmeter.png " />
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- < img id ="4-6b " style ="position:absolute; left:160px; top:130px; " title ="Electrode " src ="images/electrode2.png " />
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+ < img id ="4-6b " style ="position:absolute; left:160px; top:130px; " title ="Temperature probe " src ="images/electrode2.png " />
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< img style ="position:absolute; left:310px; top:322px; " title ="pHmeter " src ="images/p2.png " />
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< img id ="4-6a " style ="position:absolute; left:130px; top:130px; " title ="Electrode " src ="images/electrode2.png " />
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< img style ="position:absolute; left:310px; top:335.5px; " title ="pHmeter " src ="images/p3.png " />
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<!-- beaker and buffer solution -->
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< div id ="4-1 " style ="position:absolute; left:470px; top:390px; border-top:2px solid gray; background-color:transparent; width:63px; height:25px; "> </ div >
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< img id ="4-2 " style ="position:absolute; left:466px; top:380px; cursor:pointer; " title ="beaker " src ="images/beaker.png " />
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- < div id ="4-3 " style ="position:absolute; left:475.49px; top:405px; border:1px solid black; text-align:center; background-color:#ffffff; font-size:8.5px; cursor:pointer; "> Buffer </ br > solution of </ br > pH 4 </ div >
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+ < div id ="4-3 " style ="position:absolute; left:475.49px; top:405px; border:1px solid black; text-align:center; background-color:#ffffff; font-size:8.5px; cursor:pointer; "> Buffer </ br > solution of </ br > pH 7 </ div >
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< img id ="4-4 " style ="position:absolute; left:506px; top:385px; visibility:hidden; " src ="images/hand.png " />
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</ div >
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<!-- canvas 5 -->
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< div class ="simsubscreen " id ="canvas5 " style ="visibility:hidden; ">
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< strong class ="incanvas "> STEP</ strong >
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< span class ="circlebg "> 3 </ span >
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- < p class ="steptext "> Clean the electrode with the distilled water and dry it using tissue paper.</ p >
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+ < p class ="steptext "> Clean the electrode and temperature probe with the distilled water and dry it using tissue paper.</ p >
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<!-- tissue -->
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< img id ="5-7b " style ="position:absolute; left:400.5px; top:174px; visibility:hidden; " src ="images/t2.png " />
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<!-- Electrode -->
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- < img id ="5-1b " style ="position:absolute; left:135px; top:155px; transform:rotate(-15deg); " title ="Electrode " src ="images/electrode.png " />
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+ < img id ="5-1b " style ="position:absolute; left:135px; top:155px; transform:rotate(-15deg); " title ="Tmperature probe " src ="images/electrode.png " />
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< img id ="5-1a " style ="position:absolute; left:130px; top:160px; transform:rotate(-15deg); " title ="Electrode " src ="images/electrode.png " />
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<!-- tissue -->
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< img id ="5-7a " style ="position:absolute; left:400px; top:181px; visibility:hidden; " src ="images/t1.png " />
@@ -213,7 +213,7 @@ <h1 id="2-1" style="position:absolute; left:155px; top:250px; color:grey; displa
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< div style ="position:absolute; left:170px; top:350px; border:1px solid black; padding:3px; background-color:#ffffff; font-size:14px; "> Waste</ div >
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< span id ="note5-1 " style ="position:absolute; left:300px; top:250px; text-align:center; padding:10px; visibility:hidden; border:1px solid black; background-color:black; border-radius:5px; ">
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- < p style ="color:white; font-size:15px; " > Dry the electrodes using tissue paper.</ p >
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+ < p style ="color:white; font-size:15px; " > Dry the electrode and temperature probe using tissue paper.</ p >
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< input id ="b5-1 " type ="button " style ="float:right; " value ="OK " />
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</ span >
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</ div >
@@ -222,10 +222,10 @@ <h1 id="2-1" style="position:absolute; left:155px; top:250px; color:grey; displa
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< div class ="simsubscreen " id ="canvas6 " style ="visibility:hidden; ">
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< strong class ="incanvas "> STEP</ strong >
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< span class ="circlebg "> 4 </ span >
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- < p class ="steptext "> Dip the combined electrode in the buffer solution of pH value 9.2 .</ p >
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+ < p class ="steptext "> Dip the electrode and temperature probe in the buffer solution of pH value 4 .</ p >
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< img style ="position:absolute; left:106px; top:75px; " title ="pHmeter " src ="images/pHmeter.png " />
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- < img id ="6-6b " style ="position:absolute; left:160px; top:130px; " title ="Electrode " src ="images/electrode2.png " />
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+ < img id ="6-6b " style ="position:absolute; left:160px; top:130px; " title ="Temperature probe " src ="images/electrode2.png " />
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< img style ="position:absolute; left:310px; top:322px; " title ="pHmeter " src ="images/p2.png " />
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< img id ="6-6a " style ="position:absolute; left:130px; top:130px; " title ="Electrode " src ="images/electrode2.png " />
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< img style ="position:absolute; left:310px; top:335.5px; " title ="pHmeter " src ="images/p3.png " />
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<!-- beaker and buffer solution -->
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< div id ="6-1 " style ="position:absolute; left:470px; top:390px; border-top:2px solid gray; background-color:transparent; width:63px; height:25px; "> </ div >
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< img id ="6-2 " style ="position:absolute; left:466px; top:380px; cursor:pointer; " title ="beaker " src ="images/beaker.png " />
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- < div id ="6-3 " style ="position:absolute; left:475.49px; top:405px; border:1px solid black; text-align:center; background-color:#ffffff; font-size:8.5px; cursor:pointer; "> Buffer </ br > solution of </ br > pH 9.2 </ div >
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+ < div id ="6-3 " style ="position:absolute; left:475.49px; top:405px; border:1px solid black; text-align:center; background-color:#ffffff; font-size:8.5px; cursor:pointer; "> Buffer </ br > solution of </ br > pH 4 </ div >
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< img id ="6-4 " style ="position:absolute; left:506px; top:385px; visibility:hidden; " src ="images/hand.png " />
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</ div >
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@@ -249,11 +249,11 @@ <h1 id="7-1" style="position:absolute; left:100px; top:250px; color:grey; displa
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< div class ="simsubscreen " id ="canvas8 " style ="visibility:hidden; ">
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< strong class ="incanvas "> STEP</ strong >
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< span class ="circlebg "> 5 </ span >
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- < p class ="steptext "> Clean the electrode with the distilled water and dry it using tissue paper.</ p >
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+ < p class ="steptext "> Clean the electrode and temperature probe with the distilled water and dry it using tissue paper.</ p >
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<!-- tissue -->
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< img id ="7-7b " style ="position:absolute; left:400.5px; top:174px; visibility:hidden; " src ="images/t2.png " />
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<!-- Electrode -->
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- < img id ="7-1b " style ="position:absolute; left:135px; top:155px; transform:rotate(-15deg); " title ="Electrode " src ="images/electrode.png " />
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+ < img id ="7-1b " style ="position:absolute; left:135px; top:155px; transform:rotate(-15deg); " title ="Temperature probe " src ="images/electrode.png " />
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< img id ="7-1a " style ="position:absolute; left:130px; top:160px; transform:rotate(-15deg); " title ="Electrode " src ="images/electrode.png " />
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<!-- tissue -->
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< img id ="7-7a " style ="position:absolute; left:400px; top:181px; visibility:hidden; " src ="images/t1.png " />
@@ -267,7 +267,7 @@ <h1 id="7-1" style="position:absolute; left:100px; top:250px; color:grey; displa
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< div style ="position:absolute; left:170px; top:350px; border:1px solid black; padding:3px; background-color:#ffffff; font-size:14px; "> Waste</ div >
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< span id ="note7-1 " style ="position:absolute; left:300px; top:250px; text-align:center; padding:10px; visibility:hidden; border:1px solid black; background-color:black; border-radius:5px; ">
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- < p style ="color:white; font-size:15px; " > Dry the electrodes using tissue paper.</ p >
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+ < p style ="color:white; font-size:15px; " > Dry the electrode and temperature probe using tissue paper.</ p >
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< input id ="b7-1 " type ="button " style ="float:right; " value ="OK " />
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</ span >
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</ div >
@@ -276,10 +276,10 @@ <h1 id="7-1" style="position:absolute; left:100px; top:250px; color:grey; displa
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< div class ="simsubscreen " id ="canvas9 " style ="visibility:hidden; ">
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< strong class ="incanvas "> STEP</ strong >
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< span class ="circlebg "> 6 </ span >
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- < p class ="steptext "> Dip the combined electrode in the solution to determine its pH value.</ p >
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+ < p class ="steptext "> Dip the electrode and temperature probe in the solution to determine its pH value.</ p >
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< img style ="position:absolute; left:106px; top:75px; " title ="pHmeter " src ="images/pHmeter.png " />
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- < img id ="8-6b " style ="position:absolute; left:160px; top:130px; " title ="Electrode " src ="images/electrode2.png " />
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+ < img id ="8-6b " style ="position:absolute; left:160px; top:130px; " title ="Temperature probe " src ="images/electrode2.png " />
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< img style ="position:absolute; left:310px; top:322px; " title ="pHmeter " src ="images/p2.png " />
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< img id ="8-6a " style ="position:absolute; left:130px; top:130px; " title ="Electrode " src ="images/electrode2.png " />
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< img style ="position:absolute; left:310px; top:335.5px; " title ="pHmeter " src ="images/p3.png " />
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