Molar Mass (VCE SSCE Chemistry): Flashcards

Mass in grams of one mole of a substance

$M$, unit: $\text{g} \cdot \text{mol}^{-1}$

Take $A_r$ from periodic table, add $\text{g} \cdot \text{mol}^{-1}$

Add up relative atomic masses of all atoms in formula

$n = \frac{m}{M}$ ($n$=mol, $m$=mass in g, $M$=molar mass)

$m = n \times M$

$18.0 \text{ g} \cdot \text{mol}^{-1}$

$44.0 \text{ g} \cdot \text{mol}^{-1}$

$6.02 \times 10^{23} \text{ mol}^{-1}$

$N = n \times N_A$ where $N$=particles, $N_A$=Avogadro constant