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Avogadro's Number

what is the t...

Question

what is the total number of electrons in 1.6 grams of methane?

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Solution

1 mole of a substance = Gram Molecular Mass of the substance
therfore, 16 gm CH₄= 1 mole
. '. 1.6 gm CH₄ = 0.1 mole
Now,
1 mole = 6.02310²³ particles
so 0.1 mole of CH₄ = 0.1 6.02310²³ electrons
= 6.02310²² electrons

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