Question

calculate the number of atoms in 3.0 moles k. what goes in the green blank for the unit cancellation? 3.0 moles k 3.0 moles k 1.0 mole k 5.0×10²⁴ atoms k 6.02×10²³ atoms k

Explanation:

Step1: Recall Avogadro's number

Avogadro's number ($N_A$) is $6.02\times 10^{23}$ atoms/mol. When converting moles to atoms, we use the conversion factor $\frac{6.02\times 10^{23}\text{ atoms K}}{1\text{ mole K}}$.

Answer:

$6.02\times 10^{23}$ atoms K