Calculate the mass of 3.011/10power23atom of nitrogen
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correct question is calculate the mass of 3.011× 10^23 atom of nitrogen
answer: we know,
no. of atoms = no. of moles × Avogadro's no.
∴ no. of moles = no. of atoms / avogardo's no.
= 3.011 × 10^23 / 6.022× 10^23
= 0.5 moles
we know,
no. of mole = given mass / molar mass
given mass = no. of mole × molar mass
= 0.5 × 14
= 7
The required mass of nitrogen is 7 gm
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