Answer
The pictured base ($HC{O_3}^-$) is weak.
Work Step by Step
What happened there: This was a sodium bicarbonate ($NaHCO_3$) solution, this salt completely dissociated in water, producing the pH-neutral ion: $Na^+$, and the weak base: $H{CO_3}^-$;
Since we can identify $HC{O_3}^-$ (base) molecules in the solution, the base didn't ionizate $100\%$ into $OH^-$ and $H_2CO_3$ ions, making this a weak base.
