Question

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

Answer 1

just divide by the avogadro's number

Answer 2

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