Calculate the number of particles in each of the following: (1) 46g of Na atoms (number from mass) (2) 8g O2 molecules (number of molecules from mass) (3) 0.1 mole of carbon atoms (number from given moles) .
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Explanation:
1st moles=46/23=2
no of particles=mole×Na
=2×6.02×10^23
=12.04×10^23
2nd moles= 8/32=1/4
no of particles=1/4×6.02×10^23
= 1.505×10^23
3rd moles= 0.1 (given)
no of particles= 0.1×6.02×10^23
= 0.602×10^23
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