Question

What mass of methane contains 2.408 x 10²³ hydrogen atoms ?

Answer 1

No. of hydrogen atoms in CH4 =4

So;no. of molecules =2.408 ×10²³/4

=6.02×10²²

therefore,no. of moles of CH4 =6.02×10²²/6.02×10²³

=0.1 mole

hence mass of methane produced will be =16×0.1

=1.6 gram

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