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{
"metadata": {
"name": ""
},
"nbformat": 3,
"nbformat_minor": 0,
"worksheets": [
{
"cells": [
{
"cell_type": "heading",
"level": 1,
"metadata": {},
"source": [
"Chapter 10:Polymer Chemistry"
]
},
{
"cell_type": "heading",
"level": 2,
"metadata": {},
"source": [
"Example no:1,Page no:272"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
"\n",
"#Variable declaration\n",
"N1=5.0 #no of molecules#\n",
"N2=10.0 \n",
"N3=20.0 \n",
"N4=20.0 \n",
"N5=10.0 \n",
"M1=5000.0 #molecular mass of each molecule#\n",
"M2=6000.0 \n",
"M3=10000.0 \n",
"M4=15000.0 \n",
"M5=25000.0 \n",
"\n",
"#Calculation\n",
"M=(M1*N1+M2*N2+M3*N3+M4*N4+M5*N5)/(N1+N2+N3+N4+N5) #formula for number average molecular mass#\n",
"Mw=(N1*M1**2+N2*M2**2+N3*M3**2+N4*M4**2+N5*M5**2)/(M1*N1+M2*N2+M3*N3+M4*N4+M5*N5) #formula of weight-average molecular mass#\n",
"\n",
"#Result\n",
"print\"The number average molecular mass is %.2e\"%M\n",
"print\"\\nThe weight average molecular mass is %.2e\"%Mw"
],
"language": "python",
"metadata": {},
"outputs": [
{
"output_type": "stream",
"stream": "stdout",
"text": [
"The number average molecular mass is 1.28e+04\n",
"\n",
"The weight average molecular mass is 1.59e+04\n"
]
}
],
"prompt_number": 1
}
],
"metadata": {}
}
]
}
|
