Calculate the number of hydrogen atoms in 3.2 gms of CH4?
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mass of hydrogen =1
molar masss of CH4 =12+4=16
4 hydrogen atom is present in CH4
no of moles of CH4=3.2/16
=0.2
no of hydrogen atom present = 0.2x6.022x 10^23
=1.2044x10^23
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