# What is the number of nitrogen molecules in 0.6 moles of N_2?

Multiply the number of moles given by Avogadro's number ($6.02 \times {10}^{23}$) because Avogadro's number is equal to the number of molecules in 1 mole of substance.
Hence $0.6 \times 6.02 \times {10}^{23}$