how many moles are present in 7.5×10^20 molecules of C6H6.....its answer is 1.245×10^-3mol........and I have a little confusion that we getting this answer without using C6H6 .....so what we can do with C6H6?
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Answer:
number of moles = 1.24 × 10^-³
Explanation:
number of mole = NUMBER OF molecules ÷ avogadro's number
=> number of mole = 7.5×10²⁰ ÷ 6.02×10^-²³
=> number of moles = 1.24 × 10^-³
number of moles , when molecules are given will remain same irrespective of compound.
with C6H6 we can find mass of this much molecules , or number of atoms
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