Medium
Find the mass of 0.5 mole(s) of sodium hydroxide (NaOH). (Molar mass = 40 g/mol)
Explanation
Explanation
Mass = number of moles × molar mass = 0.5 × 40 g/mol = 20.0 g.
PRO TIP
Re-check your working by substituting the answer back into the original question.