The number of oxygen atoms in 4.4g of O2 is???
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Hii..
➡️ Moles = Given mass / Molar mass
➡️ Moles of O2 = 4.4 / 32 = 44/320 = 11/80 moles
➡️ No. of atoms = Moles × Avogadro's no.
=> No. of O2 atom = 11/80 × 6.022× 10^23
i.e. 0.82 × 10^23 moles ...or 82 × 10^21 moles.
_______________________
hope this helps :)
➡️ Moles = Given mass / Molar mass
➡️ Moles of O2 = 4.4 / 32 = 44/320 = 11/80 moles
➡️ No. of atoms = Moles × Avogadro's no.
=> No. of O2 atom = 11/80 × 6.022× 10^23
i.e. 0.82 × 10^23 moles ...or 82 × 10^21 moles.
_______________________
hope this helps :)
desichora1:
Molar mass of O2 is 32 not 44
??
yes ... molar mass of O2 is 32 g
and molar mass of CO2 is 44
why you have taken Co2 here??
i haven't taken CO2 dude..
Why you have taken 44??
& you have find no. of O2 molecules in 4.4 g not no. of atoms?
bro that's 4.4 ➡️ given mass
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