Question

caluculate the total number of carbon atoms present in 1.6 g of methane
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Answer 1

Answer:

1.6 grams of methane, is some number of moles of methane. Methane is CH4, meaning it contains one carbon atom and four hydrogen atoms per molecule. One mole of carbon is 12 grams and one mole of hydrogen is 1 gram. CH4 is therefore 16 grams per mole.

Answer 2

Answer:

Number of moles of methan = 1.6/16 = 0.1

ln on mole there are 6.02×10^23 atoms

Thus in 0.1 mole there are 0.1×6.02×10^23

atoms = 6.02 × 10^22 atoms

Hence the total no of electron = No of electron present in CH4×atoms present in 0.1 mole

10× 6.02× 10^22 = 6.02×10^23