<html xmlns="http://www.w3.org/1999/xhtml"><head>
        <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
        <meta name="viewport" content="width=device-width, height=device-height, initial-scale=0.5, minimum-scale=0.5, user-scalable=yes, maximum-scale=2.0, target-densitydpi=device-dpi" />
				<meta name="robots" content="all"/>
        <meta name="description" content="description">
        <meta name="keywords" content="">
        <title>Page 52 - 11-chem-8</title>
<style type="text/css">
<!--
body {
	margin-left: 0px;
	margin-top: 0px;
	margin-right: 0px;
	margin-bottom: 0px;
}
  
#container {margin:50px auto;padding:0px;width:910px;}
#left-button{ width:90px; height:100%;float:left }
#middle{ width:730px; margin:0px; float: left;}
#right-button{ width:90px; float:left;}
html, body, div, ul, li, dl, dt, dd, h1, h2, h3, h4, h5, h6, form, input, dd,select, button, textarea, iframe, table, th, td { margin: 0; padding: 0; }
img { border: 0 none; displayblock}
span,ul,li,image{ padding:0px; margin:0px; list-style:none;}
#top-title{ width:714px; margin-bottom:10px; float:left; padding:0px 8px}
#top-title2{ width:320px;  float:right;}
#content{ width: 730px; float:left;float:left;word-wrap: break-word;}
#content-top{ width:730px; background-image:url(images/top_bg.jpg); height:56px; background-repeat:no-repeat; float:left;}
#content-top1{ width:70%; padding:16px 0px 0px 30px; font-family:Arial, Helvetica, sans-serif; font-size:24px; color:#636363;float:left;}
#content-top2{ width:60px; float:right; padding:25px 30px 0px 0px;font-family:Arial, Helvetica, sans-serif; font-size:11px; color:#2f2f2f; font-weight:bold; text-align:right}
#content-middle{ width:730px; background-image:url(images/middle_bg.jpg); background-repeat:repeat-y;float:left;}
#content-middle1{ width:475px; padding:25px 0px 25px 35px; font-family:Arial, Helvetica, sans-serif; font-size:12px; color:#636363; line-height:150%;float:left;}
#content-middle2{  padding:7px; float:right; margin:25px 35px 0px 0px; border:solid 1px #c8c8c9; background-color:#FFF; text-align:center}
#content-bottom{ width:730px; background-image:url(images/bottom_bg.jpg); background-repeat:no-repeat; height:58px;float:left;}
#content-bottom2{ width:110px; height:42px; margin:0px auto; padding-top:4px;}
#input{ width:58px; height:20px; background-color:#FFF; border:solid 1px #dfdfe0; color:#636363; text-align:center; font-size:11px;}
.font1{ font-family:Arial, Helvetica, sans-serif; font-size:10px; color:#2f2f2f;}
.font1 a:link{
	text-decoration: none;
    color:#2f2f2f;

}
.font1 a:visited{
	text-decoration: none;
    color:#2f2f2f;
	
}
.font1 a:hover{
	color: #2f2f2f;
	text-decoration: underline;

}



.text-container {
padding: 20px;
color: #333;
margin-top: 24px;
line-height: 22px;
border-top-left-radius: 3px;
border-top-right-radius: 3px;
}

.use-as-video {
float: right;
padding-left: 20px;
}
.cc-float-fix:before, .cc-float-fix:after {
content: "";
line-height: 0;
height: 0;
width: 0;
display: block;
visibility: hidden;
}
.use-as-video-img {
cursor: pointer;
position: relative;
width: 320px;
height: 180px;
}
.use-as-video-title {
font-size: 15px;
font-weight: bold;
color: #000000;
padding-bottom: 5px;
}
-->
</style>
<script type="text/javascript">
<!--
function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}
//-->
</script>
</head>

<body onload="MM_preloadImages('images/next2.png','images/previous2.png')">
<div id="container">
<div id="left-button">
  <p>&nbsp;</p>
  <p>&nbsp;</p>
  <p>&nbsp;</p>
  <p>&nbsp;</p>
  <p>&nbsp;</p>
  <p><a href="page51.html"><img src="images/previous_big.png" width="90" height="80" /></a></p>
</div>
<div id="middle">
  <div id="top-title"><span class="font1">Basic HTML Version</span>
    <div id="top-title2">
      <table width="100%" border="0" align="right" cellpadding="0" cellspacing="0">
        <tr>
        	<td width="66%"> </td>
          <td width="35%" style="display:none" align="right"><img src="images/content.png" width="19" height="16" /></td>
          <td width="31%" style="display:none" class="font1"><a href="">Table of Contents</a></td>
          <td width="6%"><img src="images/view.png" width="19" height="16" /></td>
          <td width="28%" class="font1"><a href="../../index.html#p=52">View Full Version</a></td>
        </tr>
      </table>
    </div>
  </div>
  <div id="content">
     <div id="content-top">
        <div id="content-top1">Page 52 - 11-chem-8</div>
        <div id="content-top2">P. 52</div>
     </div>
     <div id="content-middle">
     	
     	  <div class="text-container">
    <div class="use-as-video cc-float-fix">
      <a style="text-decoration: none;" href="../../index.html#p=52"><img src="../thumb/52.jpg" /></a>
    </div>

    <p class="use-as-video-title"></p>
    <pre style="white-space:pre-line"><code>8.CHEMICAL EQUILIBRIUM                                              eLearn.Punjab

					

(b) 	 Determination of Solubility from Ksp

	 For this purpose we need the formula of the compound and Ksp value. Then the unknown
molar solubility S is calculated and the concentration of the ions are determined. Table (8 .11 ) shows

the relationship between the Ksp values and the solubility of some sparingly soluble compounds.

Table (8.11) Relationship between Ksp and the
         solubility of some compounds.

Formula No. of                                  Ksp     Solubility
              ions Cation                                  gdm-3
                                            3.61x10-8
                             Anion          1.69x10-8   1.9x10-4
                                            1.96x10-10  1.3x10-4
MgCO3                   2  1/1              6.5x10-6    1.4x10-5
PbSO4                   2  1/1              1.35x10-5   1.175x10-2
BaCrO4                  2  1/1              3.2x10-11   7.2x10-3
Ca(OH)2                 3  1/ 2             2.6x10-12   2.0x10-4
BaF2                    3  1/ 2                         8.7x10-5
CaF2                    3  1/ 2
Ag2CrO4                    2 /1

Example 7 :

	Ca(OH)2 is a sparingly soluble compound. Its solubility product is 6.5x10-6 Calculate the
solubility of Ca(OH)2.

Solution:

	 Let the solubility is represented by S in terms of moles dm-3.
	 The balanced equation is

			 Ca(OH)2 ï‚ƒ Ca2+ (aq) + 2OH-(aq)

                                    52</code></pre>
     	</div>
    
     </div>
     <div id="content-bottom">
       <div id="content-bottom2">
         <table width="110" border="0" cellspacing="0" cellpadding="0">
           <tr>
             <td width="22%" height="44"><a href="page51.html"><img src="images/previous.png" width="26" height="19" id="Image2" onmouseover="MM_swapImage('Image2','','images/previous2.png',1)" onmouseout="MM_swapImgRestore()" /></a></td>
             <td width="43%">
             	&nbsp;&nbsp;&nbsp;<a href="page47.html">47</a>&nbsp;&nbsp;&nbsp;<a href="page48.html">48</a>&nbsp;&nbsp;&nbsp;<a href="page49.html">49</a>&nbsp;&nbsp;&nbsp;<a href="page50.html">50</a>&nbsp;&nbsp;&nbsp;<a href="page51.html">51</a>&nbsp;&nbsp;&nbsp;<a href="page52.html">52</a>&nbsp;&nbsp;&nbsp;<a href="page53.html">53</a>&nbsp;&nbsp;&nbsp;<a href="page54.html">54</a>&nbsp;&nbsp;&nbsp;<a href="page55.html">55</a>&nbsp;&nbsp;&nbsp;<a href="page56.html">56</a>&nbsp;&nbsp;&nbsp;<a href="page57.html">57</a>
             </td>
             <td width="35%"><a href="page53.html"><img src="images/next.png" width="26" height="19" id="Image1" onmouseover="MM_swapImage('Image1','','images/next2.png',1)" onmouseout="MM_swapImgRestore()" /></a></td>
           </tr>
         </table>
       </div>
     </div>
  </div>
</div>
<div id="right-button">
  <p>&nbsp;</p>
  <p>&nbsp;</p>
  <p>&nbsp;</p>
  <p>&nbsp;</p>
  <p>&nbsp;</p>
  <p><a href="page53.html"><img src="images/next_big.png" width="90" height="80" /></a></p>
</div>


</div>
</body>
</html>