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-{
- "cells": [
-  {
-   "cell_type": "markdown",
-   "metadata": {},
-   "source": [
-    "# Chapter15 Ionic Equilibria"
-   ]
-  },
-  {
-   "cell_type": "markdown",
-   "metadata": {},
-   "source": [
-    "## Example 15.1,Page no.62"
-   ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": 3,
-   "metadata": {
-    "collapsed": false
-   },
-   "outputs": [
-    {
-     "name": "stdout",
-     "output_type": "stream",
-     "text": [
-      "solubility product = 2048.0 * 10**-15\n",
-      "solubility= 2048.0 * 10**6\n"
-     ]
-    }
-   ],
-   "source": [
-    "import math\n",
-    "#initialisation of variables\n",
-    "c=8*10**-5 # molar\n",
-    "n=2.0\n",
-    "#CALCULATIONS\n",
-    "Ksp=c**3*n**2\n",
-    "#RESULTS\n",
-    "Ksp=Ksp*10**15\n",
-    "x=Ksp\n",
-    "print 'solubility product =',Ksp,'* 10**-15'\n",
-    "print 'solubility=',x,'* 10**6'"
-   ]
-  },
-  {
-   "cell_type": "markdown",
-   "metadata": {},
-   "source": [
-    "## Example 15.2,Page no.62"
-   ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": 2,
-   "metadata": {
-    "collapsed": false
-   },
-   "outputs": [
-    {
-     "name": "stdout",
-     "output_type": "stream",
-     "text": [
-      "mean ionic activity cooeficient = 1.0\n"
-     ]
-    }
-   ],
-   "source": [
-    "import math\n",
-    "#initialisation of variables\n",
-    "Ksp=2*10**-12 \n",
-    "M=8.84*10** -5 # molar \n",
-    "n=2.0\n",
-    "#CALCULATIONS \n",
-    "r=(Ksp/(n**2*M**3))**(1/3) \n",
-    "#RESULTS \n",
-    "print 'mean ionic activity cooeficient =',r"
-   ]
-  },
-  {
-   "cell_type": "markdown",
-   "metadata": {},
-   "source": [
-    "## Example 15.3,Page no.63"
-   ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": 3,
-   "metadata": {
-    "collapsed": false
-   },
-   "outputs": [
-    {
-     "name": "stdout",
-     "output_type": "stream",
-     "text": [
-      "mean ionic activity coeficient = 0.791\n"
-     ]
-    }
-   ],
-   "source": [
-    "import math\n",
-    "#initialisation of variables\n",
-    "from math import sqrt\n",
-    "n=2.0 \n",
-    "C=0.01 #M\n",
-    "#CALCULATIONS \n",
-    "r=10**(-0.509*n*sqrt(C)) \n",
-    "r=round(r,3)\n",
-    "#RESULTS \n",
-    "print 'mean ionic activity coeficient =',r"
-   ]
-  },
-  {
-   "cell_type": "markdown",
-   "metadata": {},
-   "source": [
-    "## Example 15.4,Page no.63"
-   ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": 17,
-   "metadata": {
-    "collapsed": false
-   },
-   "outputs": [
-    {
-     "name": "stdout",
-     "output_type": "stream",
-     "text": [
-      "degree of ionisation = 0.01 * 10**-5\n",
-      "ion product of water = 0.0001 * 10**-10\n"
-     ]
-    }
-   ],
-   "source": [
-    "import math\n",
-    "#initialisation of variables\n",
-    "M=18 #gms\n",
-    "k=5.5*10** -8 #ohmˆ−1 cmˆ−1\n",
-    "lc=349.8 #cmˆ2 equivˆ−1 ohmˆ−1\n",
-    "la=198 #cmˆ2 equivˆ−1 ohmˆ−1\n",
-    "#CALCULATIONS\n",
-    "A=M*k\n",
-    "A0= lc+la \n",
-    "a=A/A0\n",
-    "a1= 1000*a/M \n",
-    "Kw=a1*a1\n",
-    "#RESULTS\n",
-    "a1=a1* 10**5\n",
-    "a1=round(a1,2)\n",
-    "Kw=Kw* 10**10\n",
-    "Kw=round(Kw,4)\n",
-    "print 'degree of ionisation =',a1,'* 10**-5'\n",
-    "print 'ion product of water =',Kw,'* 10**-10'"
-   ]
-  },
-  {
-   "cell_type": "markdown",
-   "metadata": {},
-   "source": [
-    "## Example 15.5,Page no.64"
-   ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": 5,
-   "metadata": {
-    "collapsed": false
-   },
-   "outputs": [
-    {
-     "name": "stdout",
-     "output_type": "stream",
-     "text": [
-      "pKa = 3.752\n"
-     ]
-    }
-   ],
-   "source": [
-    "import math\n",
-    "#initialisation of variables\n",
-    "Ka=1.772*10** -4 \n",
-    "#CALCULATIONS \n",
-    "pK=-math.log10(Ka) \n",
-    "#RESULTS\n",
-    "pK=round(pK,3)\n",
-    "print 'pKa =',pK"
-   ]
-  },
-  {
-   "cell_type": "markdown",
-   "metadata": {},
-   "source": [
-    "## Example 15.6,Page no.64"
-   ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": 15,
-   "metadata": {
-    "collapsed": false
-   },
-   "outputs": [
-    {
-     "name": "stdout",
-     "output_type": "stream",
-     "text": [
-      "ionisation constant = 0.00002212\n"
-     ]
-    }
-   ],
-   "source": [
-    "import math\n",
-    "#initialisation of variables\n",
-    "K=1.75*10** -5 \n",
-    "c=0.01 #M \n",
-    "#CALCULATIONS \n",
-    "r=10**( -0.509*sqrt(c)) \n",
-    "Ka=K/r**2 \n",
-    "#RESULTS \n",
-    "print 'ionisation constant =',format(Ka, '.8f')"
-   ]
-  },
-  {
-   "cell_type": "markdown",
-   "metadata": {},
-   "source": [
-    "## Example 15.7,Page no.64"
-   ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": 7,
-   "metadata": {
-    "collapsed": false
-   },
-   "outputs": [
-    {
-     "name": "stdout",
-     "output_type": "stream",
-     "text": [
-      "pH = 2.878\n"
-     ]
-    }
-   ],
-   "source": [
-    "import math\n",
-    "#initialisation of variables\n",
-    "from math import sqrt\n",
-    "ka=1.75*10** -5 \n",
-    "ca=0.1 #mole lit \n",
-    "#CALCULATIONS\n",
-    "pH=-math.log10(sqrt(ka*ca)) \n",
-    "#RESULTS \n",
-    "pH=round(pH,3)\n",
-    "print 'pH =',pH"
-   ]
-  },
-  {
-   "cell_type": "markdown",
-   "metadata": {},
-   "source": [
-    "## Example 15.8,Page no.65"
-   ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": 8,
-   "metadata": {
-    "collapsed": false
-   },
-   "outputs": [
-    {
-     "name": "stdout",
-     "output_type": "stream",
-     "text": [
-      "pH = 8.785\n"
-     ]
-    }
-   ],
-   "source": [
-    "import math\n",
-    "#initialisation of variables\n",
-    "kw=10**-14\n",
-    "ka=2.69*10** -5\n",
-    "c=0.1 #N\n",
-    "#CALCULATIONS\n",
-    "pH=-math.log10(sqrt(kw*ka/c))\n",
-    "#RESULTS\n",
-    "pH=round(pH,3)\n",
-    "print 'pH =',pH"
-   ]
-  },
-  {
-   "cell_type": "markdown",
-   "metadata": {},
-   "source": [
-    "## Example 15.9,Page no.65"
-   ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": 9,
-   "metadata": {
-    "collapsed": false
-   },
-   "outputs": [
-    {
-     "name": "stdout",
-     "output_type": "stream",
-     "text": [
-      "pH= 5.093\n"
-     ]
-    }
-   ],
-   "source": [
-    "import math\n",
-    "#initialisation of variables\n",
-    "pH=4.57\n",
-    "M=0.03 #mole litre ˆ−1\n",
-    "M1=0.1 #mole litre ˆ−1\n",
-    "#CALCULATIONS\n",
-    "pH1=pH+math.log10(M1/M)\n",
-    "#RESULTS\n",
-    "pH1=round(pH1,3)\n",
-    "print 'pH=',pH1"
-   ]
-  },
-  {
-   "cell_type": "markdown",
-   "metadata": {},
-   "source": [
-    "## Example 15.10,Page no.65"
-   ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": 10,
-   "metadata": {
-    "collapsed": false
-   },
-   "outputs": [
-    {
-     "name": "stdout",
-     "output_type": "stream",
-     "text": [
-      "pH= 8.567\n"
-     ]
-    }
-   ],
-   "source": [
-    "import math\n",
-    "#initialisation of variables\n",
-    "pH=9.26\n",
-    "M=0.02 #N\n",
-    "M1=0.01 #/N\n",
-    "#CALCULATIONS\n",
-    "pH1=pH+math.log(M1/M)\n",
-    "#RESULTS\n",
-    "pH1=round(pH1,3)\n",
-    "print 'pH=',pH1"
-   ]
-  },
-  {
-   "cell_type": "markdown",
-   "metadata": {},
-   "source": [
-    "## Example 15.11,Page no.66"
-   ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": 16,
-   "metadata": {
-    "collapsed": false
-   },
-   "outputs": [
-    {
-     "name": "stdout",
-     "output_type": "stream",
-     "text": [
-      "pH = 7.11\n",
-      "dpH = 0.03\n",
-      "dpH = 4.0\n"
-     ]
-    }
-   ],
-   "source": [
-    "import math\n",
-    "#initialisation of variables\n",
-    "pKa=6.84\n",
-    "n=0.04 #mole\n",
-    "n1=0.02 #mole\n",
-    "n2=0.001 #mole\n",
-    "pH3=7.0\n",
-    "#CALCULATIONS\n",
-    "pH=pKa+math.log10(n/n1) \n",
-    "pH1=pKa+math.log10((n-n2)/(n1+n2)) \n",
-    "dpH=pH-pH1 \n",
-    "pH2=-math.log10(n2)\n",
-    "dpH1=pH3-pH2\n",
-    "#RESULTS\n",
-    "pH1=round(pH1,2)\n",
-    "dpH=round(dpH,2)\n",
-    "print 'pH =',pH1\n",
-    "print 'dpH =',dpH\n",
-    "print 'dpH =',dpH1"
-   ]
-  }
- ],
- "metadata": {
-  "anaconda-cloud": {},
-  "kernelspec": {
-   "display_name": "Python [Root]",
-   "language": "python",
-   "name": "Python [Root]"
-  },
-  "language_info": {
-   "codemirror_mode": {
-    "name": "ipython",
-    "version": 2
-   },
-   "file_extension": ".py",
-   "mimetype": "text/x-python",
-   "name": "python",
-   "nbconvert_exporter": "python",
-   "pygments_lexer": "ipython2",
-   "version": "2.7.11"
-  }
- },
- "nbformat": 4,
- "nbformat_minor": 0
-}