Question

number of electrons present in 1.6g of methane

Answer 1

So, no of moles of methane in 1.6 g =1.6 /16 g/mole = 0.1.
Since, in 1 mole methane there are6.022 x 1023 molecules of methane,
so, in 0.1 mole there will be 0.1 x 6.022x 1023 molecules of methane

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