how to calculate the number of moles for the following : i)52g of He (finding mole from masses ) ii)12.044 x 10 to the power 23 number of helium atoms (finding mole from number of particles ) .
pls explain how to do it and what is a mole ?
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1)number of moles=given mass/molar mass
number of moles=52/4=13
so number of moles is 13
2) number of moles =number of particles/avagadro number
=12.044×10^23/6.022×10^23
=2
therefore number of moles is 2
#mole is amount that contains avagadro's number of particles
number of moles=52/4=13
so number of moles is 13
2) number of moles =number of particles/avagadro number
=12.044×10^23/6.022×10^23
=2
therefore number of moles is 2
#mole is amount that contains avagadro's number of particles
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