Question

calculate no of moles and molecules present in 10gm of CH4

Answer 1

Hope of this will help you...

Answer 2

$\huge\blue{As-Salamu-Alaikum }$


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$\huge\red{Given:-}$

Mass of CH4 = 10g

$\huge\green{Required:- }$

Moles of CH4 =?

Molecules of CH4 =?


$\huge\orange{Solution }$

Molar mass of CH4= 12 +1×4 = 16g/mol

Moles of CH4 = mass /molar mass

Moles of CH4 = 10/16


$\huge\pink{Moles of CH4=0.6mol}$

NOW.......

Moles of CH4 = molecules of CH4 /Avagadro number

Molecules of CH4 = Moles of CH4 × Avagadro number

Molecules of CH4 = 0.6 × 6.023×10^23

$\huge\orange{Molecules of CH4 = 3.76 ×10^23 }$

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$\huge\white { INSHALLAH IT WILL HELP U}$