Question

How many moles are in 3.01 x 1024 formula units of RbNO3?

Answer 1

One mole of RbNO₃ has 6.022 $\times$ 10²³ molecules or units

6.022$\times$ 10²³ molecule of RbNO₃ is equal to 1 mole

so, 3.01 $\times$ 10²⁴ molecules is equal to $=\frac{3.01 \times 10^{24}}{6.022\times10^{23}}= 4.998 mole$

which is approx equal to 5 mole

so total moles will be 5 mole