How many molecules in 16 g of methane

1.	How many molecules in 16 g of methane
Answer» Molecular of methane=CH4Atomic mass of carbon(C) =12g/moleAtomic mass of hydrogen (H)= 1g/moleMolecular mass of CH4=( 12 +4×1)g/mole =16 g/moleNo. Of molecule =(16/16) ×6.023×10square23 Ans÷ 6.023 ×10 square 23<br>molecular formula of methane = CH4we know,atomic mass of C = 12 g/molatomic mass of H = 1 g/molso,molecular mass of CH4 =( 12 + 4 × 1 ) g/mol = 16 g/molalso we know,no of molecule = {given weight /molecular weight } × 6.023 × 10²³here,given weight = 16 gmolecular weight = 16 g/molso,no of molecules = ( 16/16) × 6.023 × 10²³= 6.023 × 10²³

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