Asked Dec 10, 2019

what has more atoms.....  a gram of Cesium or a gram of Hydrogen.  Not sure how to figure it out and why.


I have multiple questions on homework like this ... didnt understand professors explanation as we are cramming to get done on  time.  Does this have to do with the Avagadros number?


Expert Answer

Step 1

The number of atoms in one gram of cesium is:


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Imole Cs=6.023x1023 'atoms Mass in gram 1g 132.905g/mole Number of moles inlg cesium --0.0075шоle Molar mass atoms=4.5x1021atoms Number of atoms = 0.0075 x 6.023×1023

Step 2

The number of atoms i...


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1mole H %3D 6.023х1023atous Mass in gram 1g 1.0078g/mole Number of moles inlg hydrogen =0.992 mole Molar mass Number of atoms = 0.992x6.023x1023atoms=5.97x1023atoms %3D


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