Question

Calculate the number of formula units in 25.0 mol NaNO3.

Answer 1

Solution.

$\frac{m}{M} = \frac{N}{Na}$

$N = 25.0 \times 6.02 \times 10^{23} = 1505 \times 10^{22}$

Answer:

$N = 1505 \times 10^{22}$