There's 5 parts to the problem but it starts off "at 25oC a 0.0100M ammonia solution is a 1% ionized. Calculate (a) the concentration of the OH- and NH4+ ions..."
We learned how to find pH, pOH, the concentrations of H and OH, kb/ka. But what does it mean if its 4.1% ionized? how does that relate to the problem..