what is the number of molecules present in 0.5 moles of hydrogen
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1mole=6.022*10^23 molecules and atoms of a of a given element
There fore
0.5mole=0.5*6.022*10^23
0.5mole=3.011*10^23
There fore
0.5mole=0.5*6.022*10^23
0.5mole=3.011*10^23
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