How many atoms in total are present in 1 kg of sugar?

One molecule of sugar (C₁₂H₂₂O₁₁) = 45 atoms
Number of moles of sugar $=\frac{1000}{342}=2.92$
Number of molecules = 2.92 x 6.023 x 10²³
= 17.60 x 10²³ molecules
Number of atoms = 45 x 17.60 x 10²³
= 7.92 x 10²⁵ atoms