how many moles are there in 19atoms of fluorine ?
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Answer:
1.0 moles are there in 19 atoms of fluorine
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1.58*10^-23 moles of flourine are there in 19 atoms of it.
According to the Avogadro's Law, we know that 1 mole of any substance should contain Avogadro number of particles.
So, 2*6.023*10^23 atoms are present in 1 mole of flourine. [F is bimolecular]
By unitary method, 1 atom should be present in = (1/2*6.023*10^23) moles of flourine.
Similarly, 19 atoms should be present in = (19/2*6.023*10^23) moles
= 1.58*10^-23 moles of flourine
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