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Chemistry
OpenStudy (anonymous):

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

6 years ago
sam (.sam.):

just divide by the avogadro's number

6 years ago
OpenStudy (anonymous):

it is c) cause n= N/L -> 9,03 * 10^23/6,022*10^23 is 1,499 thus 1,5

6 years ago
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