The concentration of a solution of potassium hydroxide, KOH\text{KOH}KOH, is 0.350 mol/dm3.
What is the concentration of this solution in g/dm3\text{g/dm}^3g/dm3?
(The relative atomic mass, ArA_{\text{r}}Ar, of H\text{H}H is 1.0, of O\text{O}O is 16.0 and of K\text{K}K is 39.0).
0.00625 g/dm30.00625\text{ g/dm}^30.00625 g/dm3
13.7 g/dm313.7\text{ g/dm}^313.7 g/dm3
19.6 g/dm319.6\text{ g/dm}^319.6 g/dm3
350 g/dm3350\text{ g/dm}^3350 g/dm3