Answers

2014-11-11T20:38:03+05:30
Mass of one mole of sodium atoms = atomic wight
6.203 * 10 pow(23) atoms = 22.99
1 atom = 22.99/ (6.203 * 10pow(23) )
           =3.706 * 10pow(-23)
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2014-11-11T20:55:18+05:30
mass of one mole of sodium atoms is equal to 6.203*10 pow (23)atoms is equal to 22.99 
       1 atom =22.99/6.203*10pow(23)=3.706*10 pow (-23)
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