Question: how many atoms of carbon are present in 0.1 mole?
Answer: For every molecule of C12H22O11, there are 12 carbon atoms, aka 1:12. This means that 0.1 mole C12H22O11 is 12*0.1=1.2 mole carbon. One mole is around 6.022 * 10^23 atoms. All you need is multiple 1.2*6.022*10^23, which is 7.2264*10^23 carbon atoms.