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Chemistry
If a sample of a substance contains 9.03 x 1023 representative particles, how many moles does this represent? a) 0.5 mole b)1 mole c)1.5 mole d)9 mole
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just divide by the avogadro's number
it is c) cause n= N/L -> 9,03 * 10^23/6,022*10^23 is 1,499 thus 1,5
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