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How many molecules in 16 g of methane

Posted by सत्य सनातन? 3 years, 11 months ago

CBSE > Class 11 > Chemistry

2 answers

Ranger King 3 years, 11 months ago

Molecular of methane=CH4 Atomic mass of carbon(C) =12g/mole Atomic mass of hydrogen (H)= 1g/mole Molecular mass of CH4=( 12 +4×1) g/mole =16 g/mole No. Of molecule =(16/16) ×6.023×10square23 Ans÷ 6.023 ×10 square 23

1Thank You

Gaurav Seth 3 years, 11 months ago

molecular formula of methane = CH4
we know,
atomic mass of C = 12 g/mol
atomic mass of H = 1 g/mol
so,
molecular mass of CH4 =( 12 + 4 × 1 ) g/mol = 16 g/mol

also we know,
no of molecule = {given weight /molecular weight } × 6.023 × 10²³

here,
given weight = 16 g
molecular weight = 16 g/mol

so,
no of molecules = ( 16/16) × 6.023 × 10²³
= 6.023 × 10²³

0Thank You

ANSWER

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